Logarithm Increase-Linear Decrease Backoff Algorithm Based on Self-adaptive Optimal Contention Window

摘要：

According to different sizes of wireless sensor network (WSN), we propose a novel backoff algorithm of self-adaptive optimal contention window (SA-LL). The algorithm uses the number of nodes of competitive channel as logarithm function parameter, it not only dynamically adjusts contention window to optimal value but also makes the trend of backoff more reasonable. At the same time, the algorithm uses probability of transmission for linear parameter. It not only effectively resolves the disadvantages of BEB algorithm that it dosent record the current congestion and backoff times but also improves the problem of slowly linear change of MILD algorithm. Simulation results show that the algorithm can accurately estimate the congestion of the network and can improve the performances of the throughput, delay and fair.

关键词： WSN contention window probability of transmission backoff algorithm

作者: Shi Suming Yang Zhi Yu Min Peng Yali

作者单位: Department of Information and Engineering Jiangxi Normal University Nanchang 330022, China Department of Software Jiangxi Normal University Nanchang 330022, China

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 657-661

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）