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Fulltext SMA Lecture: Ethical consequences of technological change

Rajakumar MK

Singapore Med J, 1984 Feb;25(1):1-5.
PMID: 6463657

Dr Rajakumar delivered this lecture at the 14th SMA National Medical Convention on 16.4.1983
Republished in: Republished in: Teng CL, Khoo EM, Ng CJ (editors). Family Medicine, Healthcare and Society: Essays by Dr M K Rajakumar, Second Edition. Kuala Lumpur: Academy of Family Physicians of Malaysia, 2019: 83-90

Matched MeSH terms: Technology*
Is Technology Enhanced Learning Cost-effective to Improve Skills?: The Monash Objective Structured Clinical Examination Virtual Experience

Lim AS, Lee SWH

Simul Healthc, 2022 Apr 01;17(2):131-135.
PMID: 33273417 DOI: 10.1097/SIH.0000000000000526

INTRODUCTION: Objective Structured Clinical Examinations (OSCEs) are an accepted technique for evaluation of clinical competence in healthcare. However, the economic imperative requires faculty to control cost, using innovative educational strategies such as virtual simulation. The objective of this study was to evaluate the cost implications of implementing an online interactive learning module [Monash OSCE Virtual Experience (MOVE)].
METHODS: All fourth-year pharmacy students enrolled in Monash University in 2017 were provided access to MOVE. Cost-minimization analyses were performed to evaluate the cost of introducing MOVE in the pharmacy course using the smallest cohort size (Malaysia campus) of 40 students as the base case. We also determined under what circumstances MOVE would be more cost-effective, considering the different operational situations such as when student numbers increased or when the number of simulation modules created were increased.
RESULTS: The overall cost of setup and implementation of MOVE in the first year of implementation among 40 students was US $94.38 per student. In comparison, the face-to-face workshop cost was US $64.14 per student. On the second year of implementation, the ongoing cost of operation of MOVE was US $32.86 per student compared with US $58.97 per student using face-to-face workshop. A net benefit using MOVE was observed after the third year of implementation. Larger savings were noted when the cohort size extends larger than 100 students.
CONCLUSIONS: Monash OSCE Virtual Experience was a flexible and cost-effective approach to aid students in preparation for an OSCE and enhanced students' learning experience. The wider applicability of these findings will need to be explored in other settings.

Matched MeSH terms: Technology
Prostate organoid technology - the new POT of gold in prostate stem cell and cancer research

Mai CW, Shu Y, Cheong SK, Chua CW

Sheng Li Xue Bao, 2021 Apr 25;73(2):181-196.
PMID: 33903880

Organoids are self-organized cellular clusters in three-dimensional culture, which can be derived from a single stem cell, progenitor or cell clusters of different lineages resembling in vivo tissue architecture of an organ. In the recent years, organoids technology has contributed to the revolutionary changes in stem cell and cancer fields. In this review, we have briefly overviewed the emerging landscape of prostate organoid technology (POT) in prostate research. In addition, we have also summarized the potential application of POT in the understanding of prostate stem cell and cancer biology and the discovery of novel therapeutic strategies for prostate cancer. Lastly, we have critically discussed key challenges that lie in the current state of POT and provided a future perspective on the second-generation of POT, which should better recapitulate cellular behaviors and drug responses of prostate cancer patients.

Matched MeSH terms: Technology
Fulltext QOS-aware error recovery in wireless body sensor networks using adaptive network coding

Razzaque MA, Javadi SS, Coulibaly Y, Hira MT

Sensors (Basel), 2014 Dec 29;15(1):440-64.
PMID: 25551485 DOI: 10.3390/s150100440

Wireless body sensor networks (WBSNs) for healthcare and medical applications are real-time and life-critical infrastructures, which require a strict guarantee of quality of service (QoS), in terms of latency, error rate and reliability. Considering the criticality of healthcare and medical applications, WBSNs need to fulfill users/applications and the corresponding network's QoS requirements. For instance, for a real-time application to support on-time data delivery, a WBSN needs to guarantee a constrained delay at the network level. A network coding-based error recovery mechanism is an emerging mechanism that can be used in these systems to support QoS at very low energy, memory and hardware cost. However, in dynamic network environments and user requirements, the original non-adaptive version of network coding fails to support some of the network and user QoS requirements. This work explores the QoS requirements of WBSNs in both perspectives of QoS. Based on these requirements, this paper proposes an adaptive network coding-based, QoS-aware error recovery mechanism for WBSNs. It utilizes network-level and user-/application-level information to make it adaptive in both contexts. Thus, it provides improved QoS support adaptively in terms of reliability, energy efficiency and delay. Simulation results show the potential of the proposed mechanism in terms of adaptability, reliability, real-time data delivery and network lifetime compared to its counterparts.

Matched MeSH terms: Wireless Technology*
Fulltext Performance improvement in geographic routing for Vehicular Ad Hoc Networks

Kaiwartya O, Kumar S, Lobiyal DK, Abdullah AH, Hassan AN

Sensors (Basel), 2014;14(12):22342-71.
PMID: 25429415 DOI: 10.3390/s141222342

Geographic routing is one of the most investigated themes by researchers for reliable and efficient dissemination of information in Vehicular Ad Hoc Networks (VANETs). Recently, different Geographic Distance Routing (GEDIR) protocols have been suggested in the literature. These protocols focus on reducing the forwarding region towards destination to select the Next Hop Vehicles (NHV). Most of these protocols suffer from the problem of elevated one-hop link disconnection, high end-to-end delay and low throughput even at normal vehicle speed in high vehicle density environment. This paper proposes a Geographic Distance Routing protocol based on Segment vehicle, Link quality and Degree of connectivity (SLD-GEDIR). The protocol selects a reliable NHV using the criteria segment vehicles, one-hop link quality and degree of connectivity. The proposed protocol has been simulated in NS-2 and its performance has been compared with the state-of-the-art protocols: P-GEDIR, J-GEDIR and V-GEDIR. The empirical results clearly reveal that SLD-GEDIR has lower link disconnection and end-to-end delay, and higher throughput as compared to the state-of-the-art protocols. It should be noted that the performance of the proposed protocol is preserved irrespective of vehicle density and speed.

Matched MeSH terms: Wireless Technology
Fulltext Temperature compensation in determining of Remazol black B concentrations using plastic optical fiber based sensor

Chong SS, Aziz AR, Harun SW, Arof H

Sensors (Basel), 2014;14(9):15836-48.
PMID: 25166498 DOI: 10.3390/s140915836

In this study, the construction and test of tapered plastic optical fiber (POF) sensors, based on an intensity modulation approach are described. Tapered fiber sensors with different diameters of 0.65 mm, 0.45 mm, and 0.35 mm, were used to measure various concentrations of Remazol black B (RBB) dye aqueous solutions at room temperature. The concentrations of the RBB solutions were varied from 0 ppm to 70 ppm. In addition, the effect of varying the temperature of the RBB solution was also investigated. In this case, the output of the sensor was measured at four different temperatures of 27 °C, 30 °C, 35 °C, and 40 °C, while its concentration was fixed at 50 ppm and 100 ppm. The experimental results show that the tapered POF with d = 0.45 mm achieves the best performance with a reasonably good sensitivity of 61 × 10(-4) and a linearity of more than 99%. It also maintains a sufficient and stable signal when heat was applied to the solution with a linearity of more than 97%. Since the transmitted intensity is dependent on both the concentration and temperature of the analyte, multiple linear regression analysis was performed to combine the two independent variables into a single equation. The resulting equation was then validated experimentally and the best agreement between the calculated and experimental results was achieved by the sensor with d = 0.45 mm, where the minimum discrepancy is less than 5%. The authors conclude that POF-based sensors are suitable for RBB dye concentration sensing and, with refinement in fabrication, better results could be achieved. Their low fabrication cost, simple configuration, accuracy, and high sensitivity would attract many potential applications in chemical and biological sensing.

Matched MeSH terms: Fiber Optic Technology/instrumentation*
Fulltext Wireless displacement sensing of micromachined spiral-coil actuator using resonant frequency tracking

Ali MS, AbuZaiter A, Schlosser C, Bycraft B, Takahata K

Sensors (Basel), 2014 Jul 10;14(7):12399-409.
PMID: 25014100 DOI: 10.3390/s140712399

This paper reports a method that enables real-time displacement monitoring and control of micromachined resonant-type actuators using wireless radiofrequency (RF). The method is applied to an out-of-plane, spiral-coil microactuator based on shape-memory-alloy (SMA). The SMA spiral coil forms an inductor-capacitor resonant circuit that is excited using external RF magnetic fields to thermally actuate the coil. The actuation causes a shift in the circuit's resonance as the coil is displaced vertically, which is wirelessly monitored through an external antenna to track the displacements. Controlled actuation and displacement monitoring using the developed method is demonstrated with the microfabricated device. The device exhibits a frequency sensitivity to displacement of 10 kHz/µm or more for a full out-of-plane travel range of 466 µm and an average actuation velocity of up to 155 µm/s. The method described permits the actuator to have a self-sensing function that is passively operated, thereby eliminating the need for separate sensors and batteries on the device, thus realizing precise control while attaining a high level of miniaturization in the device.

Matched MeSH terms: Wireless Technology/instrumentation*
Fulltext Analysis and optimization of spiral circular inductive coupling link for bio-implanted applications on air and within human tissue

Mutashar S, Hannan MA, Samad SA, Hussain A

Sensors (Basel), 2014;14(7):11522-41.
PMID: 24984057 DOI: 10.3390/s140711522

The use of wireless communication using inductive links to transfer data and power to implantable microsystems to stimulate and monitor nerves and muscles is increasing. This paper deals with the development of the theoretical analysis and optimization of an inductive link based on coupling and on spiral circular coil geometry. The coil dimensions offer 22 mm of mutual distance in air. However, at 6 mm of distance, the coils offer a power transmission efficiency of 80% in the optimum case and 73% in the worst case via low input impedance, whereas, transmission efficiency is 45% and 32%, respectively, via high input impedance. The simulations were performed in air and with two types of simulated human biological tissues such as dry and wet-skin using a depth of 6 mm. The performance results expound that the combined magnitude of the electric field components surrounding the external coil is approximately 98% of that in air, and for an internal coil, it is approximately 50%, respectively. It can be seen that the gain surrounding coils is almost constant and confirms the omnidirectional pattern associated with such loop antennas which reduces the effect of non-alignment between the two coils. The results also show that the specific absorption rate (SAR) and power loss within the tissue are lower than that of the standard level. Thus, the tissue will not be damaged anymore.

Matched MeSH terms: Wireless Technology/instrumentation*
Fulltext Energy-efficient ZigBee-based wireless sensor network for track bicycle performance monitoring

Gharghan SK, Nordin R, Ismail M

Sensors (Basel), 2014;14(8):15573-92.
PMID: 25153141 DOI: 10.3390/s140815573

In a wireless sensor network (WSN), saving power is a vital requirement. In this paper, a simple point-to-point bike WSN was considered. The data of bike parameters, speed and cadence, were monitored and transmitted via a wireless communication based on the ZigBee protocol. Since the bike parameters are monitored and transmitted on every bike wheel rotation, this means the sensor node does not sleep for a long time, causing power consumption to rise. Therefore, a newly proposed algorithm, known as the Redundancy and Converged Data (RCD) algorithm, was implemented for this application to put the sensor node into sleep mode while maintaining the performance measurements. This is achieved by minimizing the data packets transmitted as much as possible and fusing the data of speed and cadence by utilizing the correlation measurements between them to minimize the number of sensor nodes in the network to one node, which results in reduced power consumption, cost, and size, in addition to simpler hardware implementation. Execution of the proposed RCD algorithm shows that this approach can reduce the current consumption to 1.69 mA, and save 95% of the sensor node energy. Also, the comparison results with different wireless standard technologies demonstrate minimal current consumption in the sensor node.

Matched MeSH terms: Remote Sensing Technology*; Wireless Technology*
Fulltext Humidity sensors principle, mechanism, and fabrication technologies: a comprehensive review

Farahani H, Wagiran R, Hamidon MN

Sensors (Basel), 2014 Apr 30;14(5):7881-939.
PMID: 24784036 DOI: 10.3390/s140507881

Humidity measurement is one of the most significant issues in various areas of applications such as instrumentation, automated systems, agriculture, climatology and GIS. Numerous sorts of humidity sensors fabricated and developed for industrial and laboratory applications are reviewed and presented in this article. The survey frequently concentrates on the RH sensors based upon their organic and inorganic functional materials, e.g., porous ceramics (semiconductors), polymers, ceramic/polymer and electrolytes, as well as conduction mechanism and fabrication technologies. A significant aim of this review is to provide a distinct categorization pursuant to state of the art humidity sensor types, principles of work, sensing substances, transduction mechanisms, and production technologies. Furthermore, performance characteristics of the different humidity sensors such as electrical and statistical data will be detailed and gives an added value to the report. By comparison of overall prospects of the sensors it was revealed that there are still drawbacks as to efficiency of sensing elements and conduction values. The flexibility offered by thick film and thin film processes either in the preparation of materials or in the choice of shape and size of the sensor structure provides advantages over other technologies. These ceramic sensors show faster response than other types.

Matched MeSH terms: Technology Assessment, Biomedical
Fulltext Seluge++: a secure over-the-air programming scheme in wireless sensor networks

Doroodgar F, Abdur Razzaque M, Isnin IF

Sensors (Basel), 2014;14(3):5004-40.
PMID: 24618781 DOI: 10.3390/s140305004

Over-the-air dissemination of code updates in wireless sensor networks have been researchers' point of interest in the last few years, and, more importantly, security challenges toward the remote propagation of code updating have occupied the majority of efforts in this context. Many security models have been proposed to establish a balance between the energy consumption and security strength, having their concentration on the constrained nature of wireless sensor network (WSN) nodes. For authentication purposes, most of them have used a Merkle hash tree to avoid using multiple public cryptography operations. These models mostly have assumed an environment in which security has to be at a standard level. Therefore, they have not investigated the tree structure for mission-critical situations in which security has to be at the maximum possible level (e.g., military applications, healthcare). Considering this, we investigate existing security models used in over-the-air dissemination of code updates for possible vulnerabilities, and then, we provide a set of countermeasures, correspondingly named Security Model Requirements. Based on the investigation, we concentrate on Seluge, one of the existing over-the-air programming schemes, and we propose an improved version of it, named Seluge++, which complies with the Security Model Requirements and replaces the use of the inefficient Merkle tree with a novel method. Analytical and simulation results show the improvements in Seluge++ compared to Seluge.

Matched MeSH terms: Wireless Technology*
Fulltext Chronology of Fabry-Perot interferometer fiber-optic sensors and their applications: a review

Islam MR, Ali MM, Lai MH, Lim KS, Ahmad H

Sensors (Basel), 2014;14(4):7451-88.
PMID: 24763250 DOI: 10.3390/s140407451

Optical fibers have been involved in the area of sensing applications for more than four decades. Moreover, interferometric optical fiber sensors have attracted broad interest for their prospective applications in sensing temperature, refractive index, strain measurement, pressure, acoustic wave, vibration, magnetic field, and voltage. During this time, numerous types of interferometers have been developed such as Fabry-Perot, Michelson, Mach-Zehnder, Sagnac Fiber, and Common-path interferometers. Fabry-Perot interferometer (FPI) fiber-optic sensors have been extensively investigated for their exceedingly effective, simple fabrication as well as low cost aspects. In this study, a wide variety of FPI sensors are reviewed in terms of fabrication methods, principle of operation and their sensing applications. The chronology of the development of FPI sensors and their implementation in various applications are discussed.

Matched MeSH terms: Fiber Optic Technology
Fulltext A comprehensive study of data collection schemes using mobile sinks in wireless sensor networks

Khan AW, Abdullah AH, Anisi MH, Bangash JI

Sensors (Basel), 2014 Feb 05;14(2):2510-48.
PMID: 24504107 DOI: 10.3390/s140202510

Recently sink mobility has been exploited in numerous schemes to prolong the lifetime of wireless sensor networks (WSNs). Contrary to traditional WSNs where sensory data from sensor field is ultimately sent to a static sink, mobile sink-based approaches alleviate energy-holes issues thereby facilitating balanced energy consumption among nodes. In mobility scenarios, nodes need to keep track of the latest location of mobile sinks for data delivery. However, frequent propagation of sink topological updates undermines the energy conservation goal and therefore should be controlled. Furthermore, controlled propagation of sinks' topological updates affects the performance of routing strategies thereby increasing data delivery latency and reducing packet delivery ratios. This paper presents a taxonomy of various data collection/dissemination schemes that exploit sink mobility. Based on how sink mobility is exploited in the sensor field, we classify existing schemes into three classes, namely path constrained, path unconstrained, and controlled sink mobility-based schemes. We also organize existing schemes based on their primary goals and provide a comparative study to aid readers in selecting the appropriate scheme in accordance with their particular intended applications and network dynamics. Finally, we conclude our discussion with the identification of some unresolved issues in pursuit of data delivery to a mobile sink.

Matched MeSH terms: Wireless Technology
Fulltext Bio-mimic optimization strategies in wireless sensor networks: a survey

Adnan MA, Abdur Razzaque M, Ahmed I, Isnin IF

Sensors (Basel), 2013;14(1):299-345.
PMID: 24368702 DOI: 10.3390/s140100299

For the past 20 years, many authors have focused their investigations on wireless sensor networks. Various issues related to wireless sensor networks such as energy minimization (optimization), compression schemes, self-organizing network algorithms, routing protocols, quality of service management, security, energy harvesting, etc., have been extensively explored. The three most important issues among these are energy efficiency, quality of service and security management. To get the best possible results in one or more of these issues in wireless sensor networks optimization is necessary. Furthermore, in number of applications (e.g., body area sensor networks, vehicular ad hoc networks) these issues might conflict and require a trade-off amongst them. Due to the high energy consumption and data processing requirements, the use of classical algorithms has historically been disregarded. In this context contemporary researchers started using bio-mimetic strategy-based optimization techniques in the field of wireless sensor networks. These techniques are diverse and involve many different optimization algorithms. As far as we know, most existing works tend to focus only on optimization of one specific issue of the three mentioned above. It is high time that these individual efforts are put into perspective and a more holistic view is taken. In this paper we take a step in that direction by presenting a survey of the literature in the area of wireless sensor network optimization concentrating especially on the three most widely used bio-mimetic algorithms, namely, particle swarm optimization, ant colony optimization and genetic algorithm. In addition, to stimulate new research and development interests in this field, open research issues, challenges and future research directions are highlighted.

Matched MeSH terms: Wireless Technology*
Fulltext A survey of routing protocols in wireless body sensor networks

Bangash JI, Abdullah AH, Anisi MH, Khan AW

Sensors (Basel), 2014;14(1):1322-57.
PMID: 24419163 DOI: 10.3390/s140101322

Wireless Body Sensor Networks (WBSNs) constitute a subset of Wireless Sensor Networks (WSNs) responsible for monitoring vital sign-related data of patients and accordingly route this data towards a sink. In routing sensed data towards sinks, WBSNs face some of the same routing challenges as general WSNs, but the unique requirements of WBSNs impose some more constraints that need to be addressed by the routing mechanisms. This paper identifies various issues and challenges in pursuit of effective routing in WBSNs. Furthermore, it provides a detailed literature review of the various existing routing protocols used in the WBSN domain by discussing their strengths and weaknesses.

Matched MeSH terms: Wireless Technology*
Fulltext Fibre optic sensors for selected wastewater characteristics

Chong SS, Aziz AR, Harun SW

Sensors (Basel), 2013 Jul 05;13(7):8640-68.
PMID: 23881131 DOI: 10.3390/s130708640

Demand for online and real-time measurements techniques to meet environmental regulation and treatment compliance are increasing. However the conventional techniques, which involve scheduled sampling and chemical analysis can be expensive and time consuming. Therefore cheaper and faster alternatives to monitor wastewater characteristics are required as alternatives to conventional methods. This paper reviews existing conventional techniques and optical and fibre optic sensors to determine selected wastewater characteristics which are colour, Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD). The review confirms that with appropriate configuration, calibration and fibre features the parameters can be determined with accuracy comparable to conventional method. With more research in this area, the potential for using FOS for online and real-time measurement of more wastewater parameters for various types of industrial effluent are promising.

Matched MeSH terms: Fiber Optic Technology/methods*
Fulltext Assessing routing strategies for cognitive radio sensor networks

Zubair S, Fisal N, Baguda YS, Saleem K

Sensors (Basel), 2013;13(10):13005-38.
PMID: 24077319 DOI: 10.3390/s131013005

Interest in the cognitive radio sensor network (CRSN) paradigm has gradually grown among researchers. This concept seeks to fuse the benefits of dynamic spectrum access into the sensor network, making it a potential player in the next generation (NextGen) network, which is characterized by ubiquity. Notwithstanding its massive potential, little research activity has been dedicated to the network layer. By contrast, we find recent research trends focusing on the physical layer, the link layer and the transport layers. The fact that the cross-layer approach is imperative, due to the resource-constrained nature of CRSNs, can make the design of unique solutions non-trivial in this respect. This paper seeks to explore possible design opportunities with wireless sensor networks (WSNs), cognitive radio ad-hoc networks (CRAHNs) and cross-layer considerations for implementing viable CRSN routing solutions. Additionally, a detailed performance evaluation of WSN routing strategies in a cognitive radio environment is performed to expose research gaps. With this work, we intend to lay a foundation for developing CRSN routing solutions and to establish a basis for future work in this area.

Matched MeSH terms: Wireless Technology/instrumentation*
Fulltext Advancements of data anomaly detection research in wireless sensor networks: a survey and open issues

Rassam MA, Zainal A, Maarof MA

Sensors (Basel), 2013;13(8):10087-122.
PMID: 23966182 DOI: 10.3390/s130810087

Wireless Sensor Networks (WSNs) are important and necessary platforms for the future as the concept "Internet of Things" has emerged lately. They are used for monitoring, tracking, or controlling of many applications in industry, health care, habitat, and military. However, the quality of data collected by sensor nodes is affected by anomalies that occur due to various reasons, such as node failures, reading errors, unusual events, and malicious attacks. Therefore, anomaly detection is a necessary process to ensure the quality of sensor data before it is utilized for making decisions. In this review, we present the challenges of anomaly detection in WSNs and state the requirements to design efficient and effective anomaly detection models. We then review the latest advancements of data anomaly detection research in WSNs and classify current detection approaches in five main classes based on the detection methods used to design these approaches. Varieties of the state-of-the-art models for each class are covered and their limitations are highlighted to provide ideas for potential future works. Furthermore, the reviewed approaches are compared and evaluated based on how well they meet the stated requirements. Finally, the general limitations of current approaches are mentioned and further research opportunities are suggested and discussed.

Matched MeSH terms: Wireless Technology/instrumentation*
Fulltext Multipath routing in wireless sensor networks: survey and research challenges

Radi M, Dezfouli B, Abu Bakar K, Lee M

Sensors (Basel), 2012;12(1):650-85.
PMID: 22368490 DOI: 10.3390/s120100650

A wireless sensor network is a large collection of sensor nodes with limited power supply and constrained computational capability. Due to the restricted communication range and high density of sensor nodes, packet forwarding in sensor networks is usually performed through multi-hop data transmission. Therefore, routing in wireless sensor networks has been considered an important field of research over the past decade. Nowadays, multipath routing approach is widely used in wireless sensor networks to improve network performance through efficient utilization of available network resources. Accordingly, the main aim of this survey is to present the concept of the multipath routing approach and its fundamental challenges, as well as the basic motivations for utilizing this technique in wireless sensor networks. In addition, we present a comprehensive taxonomy on the existing multipath routing protocols, which are especially designed for wireless sensor networks. We highlight the primary motivation behind the development of each protocol category and explain the operation of different protocols in detail, with emphasis on their advantages and disadvantages. Furthermore, this paper compares and summarizes the state-of-the-art multipath routing techniques from the network application point of view. Finally, we identify open issues for further research in the development of multipath routing protocols for wireless sensor networks.

Matched MeSH terms: Wireless Technology/instrumentation*
Fulltext A self-optimizing scheme for energy balanced routing in Wireless Sensor Networks using SensorAnt

Shamsan Saleh AM, Ali BM, Rasid MF, Ismail A

Sensors (Basel), 2012;12(8):11307-33.
PMID: 23112658 DOI: 10.3390/s120811307

Planning of energy-efficient protocols is critical for Wireless Sensor Networks (WSNs) because of the constraints on the sensor nodes' energy. The routing protocol should be able to provide uniform power dissipation during transmission to the sink node. In this paper, we present a self-optimization scheme for WSNs which is able to utilize and optimize the sensor nodes' resources, especially the batteries, to achieve balanced energy consumption across all sensor nodes. This method is based on the Ant Colony Optimization (ACO) metaheuristic which is adopted to enhance the paths with the best quality function. The assessment of this function depends on multi-criteria metrics such as the minimum residual battery power, hop count and average energy of both route and network. This method also distributes the traffic load of sensor nodes throughout the WSN leading to reduced energy usage, extended network life time and reduced packet loss. Simulation results show that our scheme performs much better than the Energy Efficient Ant-Based Routing (EEABR) in terms of energy consumption, balancing and efficiency.

Matched MeSH terms: Wireless Technology

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