A study on energy-efficient protocol based on the CSMA/CA in ad-hoc networks

This paper discusses a scheme for reducing the power consumption in the CSMA/CA ad hoc networks. We propose a simple CSMA/CA-based MAC protocol with the sleep mode which is applied during the period with and without the communication traffic, and describe the procedure of the proposed protocol. The performance is evaluated through computer simulations together with taking account of optimization for the value of k in the adaptive beacon mode. The simulated results show that remarkable reductions in the power consumption can be achieved with the proposed MAC protocol for the CSMA/CA ad hoc networks of the star type. Moreover, we introduce adaptive beacon mode to CSMA/CA scheme that control the beacon interval in accordance with the amount of traffic. Proposed scheme provide low power consumption in CSMA/CA and verify the effectiveness of the proposed scheme through simulation.