Beamforming techniques for enabling spatial-reuse in MCCA 802.11s networks

摘要: We address the problem of co-channel interference (CCI) in wireless mesh networks based on IEEE802.11s extension. The carrier sensing mechanism deployed those insufficiently addresses CCI problem, causing hidden and exposed node problems; consequently degrading throughput latency. In this paper, we show how beamforming techniques can be implemented top medium access control protocol and, using information readily available, cancel to mitigate inefficiency sense improve spatial-reuse gain. addition, propose signal-to-jamming-noise ratio (SJNR) beamformer that it significantly improves gain compared simple zero-forcing (ZF) basic scheme. derive ergodic capacity ZF scheme simulate performance various schemes. improvements up 85% are achieved as function scenario simulated technique used SJNR outperforms standard beamformer.