The effect of ARQ block size on the efficiency of a wireless access link using adaptive modulation

摘要

This paper optimizes a comprehensive set of parameters with the aim to minimize the bandwidth required for wireless transmission on a single link investigating the effect of ARQ blocksize on the adaptive link. the paper takes into consideration a comprehensive set of coding, modulation and teletraffic issues including the effects of retransmissions of erroneous packets using ARQ; modulation efficiency; FEC redundancy; and effect of traffic burstiness on loss and delay. Simulations are used to derive BER values for a range of modulation efficiency and FEC Code Rate parameters. These papermeters are optimized to obtain maximal efficiency when looking at TCP over wireless multi-service media. We show that an adaptive system provides a relatively insensitive response to variation in transmitted block size with advantages.