A novel multi-channel MAC protocol with online-prediction for wireless ad-hoc networks

被引：0

作者：

Xu, LM ^{[1
]}

Bo, P ^{[1
]}

Xiang, Y ^{[1
]}

Shi, ML ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Comp Sci & Technol, Beijing 100084, Peoples R China

来源：

CCCT 2003, VOL 3, PROCEEDINGS | 2003年

关键词：

multi-channel; medium access control; ad-hoc network; collision avoidance and online-prediction;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

MAC protocols on a single channel are prone to inefficiencies at heavy loads. Multi-channel protocols are expected to achieve improved performance and reduce the wastage of bandwidth. However, "node-offline problem" has been neglected in almost all multi-channel MAC protocols proposed in literatures. In this paper, we analyze several multi-channel MAC protocols for wireless ad-hoc networks and prove that the "node-offline problem" would degrade the performance of these protocols very much. We propose a method called "online-prediction" to solve this problem, and propose a novel protocol based on this method. With this method, nodes detect the status of their neighbors and avoid requesting those off-line nodes. Simulation results show that our protocol performs much better than the former protocols and our method can solve this problem effectively.

引用

页码：307 / 312

页数：6

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