Title: Cross-layer energy efficient protocol for QoS provisioning in wireless sensor network
Authors: Amal Bourmada; Azeddine Bilami
Addresses: LaSTIC Laboratory, Department of Computer Science, University of Batna 2, Batna, Algeria ' LaSTIC Laboratory, Department of Computer Science, University of Batna 2, Batna, Algeria
Abstract: Ensuring (QoS) in wireless sensor networks (WSNs) is a challenging issue due to the lack of resources and energy exhausting of sensor nodes. In this paper we propose a new QoS aware routing protocol for multi-hop wireless sensor networks based on cross-layer interaction between the network, MAC and physical layers. At physical layer, a link quality estimator is studied for the purpose of evaluating link quality. At MAC layer, a differentiated services mechanism is used to distinguish between real time and non-real time packets and to allocate more channel resources for real time traffic; TDMA slots also have been modified to allocate more and earlier slots to real time packets. At network layer, a routing path selection algorithm is introduced for QoS optimisation. Simulation results show that our proposed protocol improves network's performances in terms of energy efficiency and QoS.
Keywords: wireless sensor network; QoS; cross-layer; LQE; PRR; service differentiation; energy efficiency; HEEP; CLEEP-QoS.
International Journal of Systems, Control and Communications, 2017 Vol.8 No.3, pp.230 - 249
Received: 10 May 2016
Accepted: 03 Feb 2017
Published online: 28 Jul 2017 *