Novel multi-channel MAC protocol for wireless mesh networks
Supeng Leng · Computer Engineering and Applications Journal · 2011
In a IEEE 802.11s based Wireless Mesh Networks(WMN),heavy traffic load will cause the bottleneck problem at the Mesh Access Poin(tMAP)or Mesh Porta(lMPP).This paper proposes a novel Node Priority Based Multi-channel MAC(NPBM-MAC) protocol to ensure that the traffic from MAP can be prioritized.Moreover,a Location and Load Based Frequency Assignment(LLBFA) scheme is applied to reduce the interferences among the neighboring BSSs.The simulation results demonstrate that NPBM-MAC and LLBFA can solve the bottleneck problem at MAP/MPP in the heavy load network,so that the proposed approach is able to ensure the QoS requirements by large bandwidth consuming applications such as video streams.