Modified Backoff Scheme for MAC Performance Enhancement in IEEE 802.15.4 Sensor Network
Hyun M. Park, Soohyun Park · 2007
WPAN is a low rate and low power networking technology for short range communications, and it currently uses IEEE 802.15.4 MAC and PHY layers. The technology employs special CSMA/CA to save power consumption and collision avoidance for small or portable WPAN-enabled devices. However, there are no quality of service guarantees. We propose a modified backoff scheme to reduce the collisions and enhance the throughput. Simulation results show that the proposed scheme is a good candidate for backoff scgeme in wireless sensor networks.