Title :
A delayed backoff algorithm for IEEE 802.15.4 beacon-enabled LR-WPAN
Author :
Lee, Bih-Hwang ; Wu, Huai-Kuei
Author_Institution :
Nat. Taiwan Univ. of Sci. & Technol., Taipei
Abstract :
IEEE 802.15.4 is designed for low power and low rate wireless sensor networks. In the beacon-enabled mode of IEEE 802.15.4, the transmission period consists of contention access period (CAP) and contention free period (CFP). CAP applies carrier-sense multiple access/collision avoidance (CSMA-CA) for its contention mechanism. This paper proposes a delayed backoff algorithm (DBA) to solve contention problem. According to the simulation results, DBA performs better than those in IEEE 802.15.4 for the effective data goodput under the same power consumption.
Keywords :
IEEE standards; delays; wireless sensor networks; CAP; CFP; CSMA-CA; IEEE 802.15.4; beacon-enabled mode; carrier-sense multiple access/collision avoidance; contention access period; contention free period; delayed backoff algorithm; wireless sensor networks; Collision avoidance; Data communication; Delay; Energy consumption; Network topology; Personal area networks; Quality of service; Sensor phenomena and characterization; Wireless personal area networks; Wireless sensor networks; CSMA-CA; IEEE 802.15.4; MAC; backoff algorithm;
Conference_Titel :
Information, Communications & Signal Processing, 2007 6th International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0982-2
Electronic_ISBN :
978-1-4244-0983-9
DOI :
10.1109/ICICS.2007.4449785
