Acta Metallurgica Sinica(English letters) ›› 2011, Vol. 18 ›› Issue (2): 33-44.doi: 10.1016/S1005-8885(10)60042-8

• Wireless • Previous Articles     Next Articles

Survey of multi-channel MAC protocols for IEEE 802.11-based wireless Mesh networks

2, 2, 2   

  • Received:2010-07-12 Revised:2010-11-07 Online:2011-04-30 Published:2011-04-15


This paper reviews multi-channel media access control (MAC) protocols based on IEEE 802.11 in wireless Mesh networks (WMNs). Several key issues in multi-channel IEEE 802.11-based WMNs are introduced and typical solutions proposed in recent years are classified and discussed in detail. The experiments are performed by network simulator version 2 (NS2) to evaluate four representative algorithms compared with traditional IEEE 802.11. Simulation results indicate that using multiple channels can substantially improve the performance of WMNs in single-hop scenario and each node equipped with multiple interfaces can substantially improve the performance of WMNs in multi-hop scenario.

Key words:

wireless Mesh networks, multi-channel protocol , medium access control layer, IEEE 802.11

CLC Number: