International Conference Papers
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Item New QoS and Geographical Routing in Wireless Biomedical Sensor Networks(IEEE, 2009-09) Djenouri, Djamel; Balasingham, IlangkoIn this paper we deal with biomedical applications of wireless sensor networks, and propose a new quality of service (QoS) routing protocol. The protocol design relies on traffic diversity of these applications and ensures a differentiation routing using QoS metrics. It is based on modular and scalable approach, where the protocol operates in a distributed, localized, computation and memory efficient way. The data traffic is classified into several categories according to the required QoS metrics, where different routing metrics and techniques are accordingly suggested for each category. The protocol attempts for each packet to fulfill the required QoS metrics in a power-aware way, by locally selecting the best candidate. It employs memory and computation efficient estimators, and uses a multi-sink single-path approach to increase reliability. The main contribution of this paper is data traffic based QoS with regard to all the considered QoS metrics. To our best knowledge, this protocol is the first that makes use of the diversity in the data traffic while considering latency, reliability residual energy in the sensor nodes, and transmission power between sensor nodes as QoS metrics of the multi-objective problem. The proposed algorithm can operate with any MAC protocol, provided that it employs an ACK mechanism. Performance evaluation through a simulation study, comparing the new protocol with state-of-the QoS and localized protocols, show that it outperforms all the compared protocols.Item Brief Announcement on MOGRIBA: Multi-Objective Geographical Routing for Biomedical Applications of Wireless Sensor Networks(LNCS, 2009-07) Djenouri, Djamel; Balasingham, IlangkoA new routing protocol for wireless sensor networks is proposed in this paper. The proposed protocol focuses on medical applications, by considering its traffic diversity and providing a differentiation routing using quality of service (QoS) metrics. The design is based on modular and scalable approach, where the protocol operates in a distributed, localized, computation and memory efficient way. The main contribution of this paper is data traffic based QoS with regard to all the considered QoS metrics, notably reliability, latency, and energy. To our best knowledge, this protocol is the first that makes use of the diversity in the data traffic while considering latency, reliability, residual energy in the sensor nodes, and transmission power between sensor nodes as QoS metrics of the multi-objective problem. Simulation study comparing the protocol with state-of-the QoS and geographical routing protocols shows that it outperforms all the compared protocols.Item LOCALMOR: LOCALized Multi-Objective Routing for Wireless Sensor Networks(IEEE, 2009-09) Djenouri, Djamel; Balasingham, IlangkoThis paper proposes a multi-objective quality of service (QoS) routing protocol for wireless sensor networks (WSN). The protocol takes into account the traffic diversity typical for many applications and provides a differentiation in routing using QoS metrics. It ensures several QoS metrics for different traffic categories, and attempts for each packet to fulfill the required metrics in a power-aware and localized way. It employs memory and computation efficient estimators in a distributed manner and uses a multi-sink single-path approach to increase reliability. The main contribution of this paper is data traffic based QoS with regard to all the considered QoS metrics. As far as we know, this protocol is the first that makes use of the diversity in the data traffic while considering latency, reliability, residual energy in the sensor nodes, and transmission power between nodes and casts QoS metrics as a multi-objective problem. The proposed algorithm can operate with any MAC protocol, provided that it employs an ACK mechanism. Simulation results show the proposed protocol outperforms all compared state-of-the-art QoS and localized routing protocols.Item Power-Aware QoS Geographical Routing for Wireless Sensor Networks - Implementation using Contiki(IEEE, 2010-06) Djenouri, Djamel; Balasingham, IlangkoThis paper presents the design and implementation of a new geographical quality of service (QoS) routing for wireless sensor networks. The protocol is based on traffic differentiation and provides customized QoS according to the traffic requirement. For each packet, the protocol attempts to fulfill the required data-related QoS metric(s) while considering power-efficiency. The data related metrics include packet latency and reliability, while power-efficiency has been considered for both power transmission minimization and residual energy maximization (load balancing). The protocol has been implemented in real sensor motes using Contiki operating system, which offers many modules and has many features that facilitate efficient communication protocol implementation. The protocol was then evaluated in a testbed. The experimental results show good QoS performance, and particularly, traffic-differentiation QoS as expected, i.e., QoS-sensitive packets were routed with better performances than regular packets. The protocol is generic and applies to any application with traffic requiring different QoS, such as in biomedical and vehicular applications.