A Rate Separating Multi-Channel Protocol for Improving Channel Diversity and Node Connectivity in IEEE 802.11 Mesh Networks 


Vol. 35,  No. 12, pp. 1152-1159, Dec.  2010


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  Abstract

Wireless Mesh Networks (WMNs) provides Internet accesses to users by forming backbone networks via wireless links. A key problem of WMN is network capacity. For this, multi-channel and multi-rate functions of IEEE 802.11 can be utilized. Depending on channel assignments, multi-channel determines node connectivity and channel diversity. Also, in IEEE 802.11 multi-rate networks, the rate anomaly problem occurs, the phenomenon that low-rate links degrades the performance of high-rate links. In this paper, we propose rate separating multi-channel (RSMC) protocols that improves the node connectivity and channel diversity, and mitigates the rate anomaly problem. RSMC increases the channel diversity by forming tree-based WMNs and decreases the rate anomaly by separating different rate links on the tree via channels. In addition, it uses network connectivity (NC) algorithm to increase the node connectivity. Through simulations, we demonstrate that the RSMC shows improved performance than existing multi-channel protocols in terms of aggregate throughput, node connectivity, channel diversity.

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  Cite this article

[IEEE Style]

S. Kim, Y. Suh, D. Kwon, "A Rate Separating Multi-Channel Protocol for Improving Channel Diversity and Node Connectivity in IEEE 802.11 Mesh Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 12, pp. 1152-1159, 2010. DOI: .

[ACM Style]

Sok-Hyong Kim, Young-Joo Suh, and Dong-Hee Kwon. 2010. A Rate Separating Multi-Channel Protocol for Improving Channel Diversity and Node Connectivity in IEEE 802.11 Mesh Networks. The Journal of Korean Institute of Communications and Information Sciences, 35, 12, (2010), 1152-1159. DOI: .

[KICS Style]

Sok-Hyong Kim, Young-Joo Suh, Dong-Hee Kwon, "A Rate Separating Multi-Channel Protocol for Improving Channel Diversity and Node Connectivity in IEEE 802.11 Mesh Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 12, pp. 1152-1159, 12. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880