QoS-Aware MAC Protocols Based on the IEEE 802.11e for Wireless Multimedia Sensor Networks
Hicham Touil, Youssef Fakhri · International Review on Computers and Software (IRECOS) · 2014
Wireless Multimedia Sensor Networks (WMSN) incorporate multimedia sensors, and can combine them with scalar sensors. Also, WMSN usually exchange heterogeneous traffic which need different Quality of Service (QoS) levels. In addition, WMSN Applications (such as real-time audio-visual applications) engender an increased demand on Traffic-QoS (Throughput, delay, etc.). For these reasons, the development of a MAC protocol for WMSN able to ensure a high Traffic-QoS level over energy constrained constitutes a real challenge. In this paper, we propose a new generation of MAC protocols for WMSN, based on the IEEE 802.11e standard. More exactly, we study the feasibility of using MAC protocols of IEEE 802.11e Contention-Based in WMSN, and adaptations to be made to these protocols, to ensure suitable adaptation and an effective use. Through this study, we have validated the feasibility of our proposal in terms of Energy-efficient, Traffic-QoS and implementation complexity. As well, we have shown that our proposal is very evolutionist and ensures a high QoS-level.