CDMA/CSMA/CF scheme in packet-typed wireless networks

摘要

In this paper, we present a novel access scheme called CDMA/CSMA/CF (CDMA/CSMA/Collision Free), which can transmit two kind of traffic i.e. voice and date efficiently. This scheme avoids the collision of packets that occur in CSMA, and can assign codes fairly to terminals. This assignment of codes to terminals is operated autonomously by terminals themselves. This scheme can improve the characteristics of throughput, access delay and packet loss rate. We evaluate the performances of CDMA/CSMA/CF compared with CDMA/PRMA. and show the validity numerically.