Title :
Channel Cognitive Multi-channel MAC protocol in Wireless Mesh Network
Author :
Gao, ZHong ; Li, Bin ; Huang, Xuehua ; Huang, Lianfen
Author_Institution :
Dept. of CE, Xiamen Univ., Xiamen
Abstract :
The IEEE 802.11 standard allows for the use of a single-channel available at the physical layer to all users. A single-channel MAC protocol does not work well in Wireless Mesh Network, since users cannot transmit simultaneously. The developing 802.11s standard proposes multi-channel proposal. The protocol requires only one transceiver per host. Each host listens to the common channel to determine the idle channel to transmit data. Thus, how to design a high-effective channel selection algorithm is the key of multi-channel MAC protocol. In this paper, a new multi-channel MAC protocol, known as Channel Cognitive Multi-channel MAC protocol, is proposed. The protocol brings the main idea of Cognitive Wireless Technology into Wireless Mesh multi-hops Network. Every host can learn the status of channels by listening in the common channel, and choose the best channel which has the less interference in multi-hop network to transmit. The simulation results show that CC-MMAC significantly improves performance of wireless mesh network.
Keywords :
access protocols; cognitive radio; radio networks; wireless LAN; IEEE 802.11 standard; channel cognitive multichannel MAC protocol; channel selection algorithm; cognitive wireless technology; interference; single-channel MAC protocol; wireless local area networks; wireless mesh multihop network; Algorithm design and analysis; Interference; Media Access Protocol; Physical layer; Proposals; Spread spectrum communication; Standards development; Transceivers; Wireless application protocol; Wireless mesh networks;
Conference_Titel :
Communications, Circuits and Systems, 2008. ICCCAS 2008. International Conference on
Conference_Location :
Fujian
Print_ISBN :
978-1-4244-2063-6
Electronic_ISBN :
978-1-4244-2064-3
DOI :
10.1109/ICCCAS.2008.4657734
