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A Buffer Management Scheme for Multi-hop Traffic in IEEE 802.11 based Mesh Networks  

Jang, Kil-Woong (한국해양대학교 데이터정보학과 네트워크연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.5B, 2009 , pp. 455-462 More about this Journal
Abstract
In this paper, we propose a buffer management scheme for decreasing the packet loss due to buffer overflow and improving the packet fairness between nodes in IEEE 802.11 based multi-hop mesh networks. In the proposed scheme, each mesh router that is an intermediate node receives fairly packet sent from neighboring mesh routers and mobile nodes, and it improves the reception ratio of multi-hop traffic of neighboring mesh routers. Therefore, the proposed scheme can reduce transmission delay and energy consumption. In order to improving the packet loss and the packet fairness, the proposed scheme uses the modified RTS/CTS under the IEEE 802.11 MAC protocol and reduces the packet loss by recognizing the packet size to send to the destination in advance. By using the simulation, we evaluated the proposed scheme in terms of the packet loss ratio and the number of received packet in each mesh router, and compare it to a traditional scheme.
Keywords
buffer management; multi-hop traffic; wireless mesh networks; packet fairness; packet loss;
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