Title :
Performance evaluation of the IEEE 802.15.4 CSMA-CA protocol with QoS differentiation
Author_Institution :
Stichting IMEC Nederland / Holst Centre, Eindhoven
Abstract :
In this paper, we investigate the performance of quality of service (QoS) differentiation schemes for the IEEE 802.15.4 carrier sense multiple access with collision avoidance (CSMA-CA) protocol. The differentiation schemes provide QoS prioritization in terms of data latency and transmission reliability in wireless sensor networks. In the latency differentiation scheme (LDS), we use different strategies to adjust backoff window sizes to prioritize different types of nodes. In the reliability differentiation scheme (RDS), more transmission attempts are given to the nodes having stricter reliability requirement when busy channels and collisions are detected. Simulation results show that the prioritized nodes can achieve significantly less latency (up to ten times less) and higher packet success rate (up to twice more) than the normal nodes.
Keywords :
carrier sense multiple access; personal area networks; quality of service; telecommunication network reliability; wireless sensor networks; IEEE 802.15.4 CSMA-CA protocol; QoS differentiation; carrier sense multiple access-collision avoidance; data latency; latency differentiation scheme; quality of service differentiation schemes; reliability differentiation scheme; transmission reliability; wireless personal area networks; wireless sensor networks; Access protocols; Body sensor networks; Collision avoidance; Delay; Energy consumption; Energy efficiency; Information security; Quality of service; Routing; Wireless sensor networks;
Conference_Titel :
Intelligent Sensors, Sensor Networks and Information Processing, 2008. ISSNIP 2008. International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-3822-8
Electronic_ISBN :
978-1-4244-2957-8
DOI :
10.1109/ISSNIP.2008.4762034
