무선 환경에서 채널 오류를 고려한 CSMA와 CSMA/CD 프로토콜의 성능분석

초록

In wireless LAN, channel effect poses the main threat to system performance. In this paper, we analyzed the performance of CSMA and CSMA/CD, using Markov modeling for the wireless channel which is characterized by near-far effect, shadowing, and Rayleigh fading. The analysis shows that throughput of CSMA and CSMA/CD is degraded by channel error. However, if capture effect the randomness of power level of received signal due to the fading phenomena of electromagnatic wave, the system performance is much improved and the system performance is much improved and the system stability is also made better.