The Study on the Performance of Backoff Algorithms in Multihop Power Line Communication Networks

Power line communication is one of the most promising wired home-networking technologies. Home Plug 1.0 is the most popular power line communication technology which extends the random back off algorithm to improve the collision problem. We propose to study the performance of back off algorithm based on the Home Plug 1.0 especially in the multihop conditions. Simulations compare the throughput, delay and fairness performance of three different back off algorithms. Results show that the performance of back off algorithm is affected by the packet size and flow patterns. Although the back off algorithm of Home Plug 1.0 performs better than BEB and FCR in several flow patterns, but further research on back off algorithm in multihop PLC network still needs to be discussed in the future.