Throughput-Energy Efficiency Performance of TCP with Link Layer FEC/ARQ on Wireless Links

摘要

In this paper, we investigate the throughput-energy efficiency performance of TCP Tahoe and Reno on wireless links using a FEC/ARQ protocol at the link layer. The effect of link layer (LL)parameters like the LL packet size, number of LL retransmission attempts, and FEC code rate on the TCP performance is evaluated. It is shown that the retransmissions at the link layer must persist long enough to outlast the average bad state duration of the multipath Rayleigh fading process in order to achieve throughput performance better than TCP without ARQ at the link layer.