IEEE 802.16 Mesh模式下的跨层拥塞控制  

Cross-layer congestion control strategy in IEEE 802.16 Mesh networks

作　　者：郑海燕[1] 刘宴兵[1] 詹艳[1] 

机构地区：[1]重庆邮电大学计算机学院,重庆400065

出　　处：《计算机工程与设计》2010年第23期4944-4946,4987,共4页Computer Engineering and Design

基　　金：国家自然科学基金项目(60973160);教育部科学技术研究重点基金项目(209101);重庆市自然科学基金项目(CSTC;2008BA2044&2009BA2024)

摘　　要：基于IEEE802.16 Mesh网络,提出了一种拥塞控制策略。每个节点通过自身拥塞情况进行局部拥塞控制,同时利用节点间的协同能力在每相邻两跳内的3个结点间进行拥塞控制。通过跨层机制反馈整条传输链路的拥塞情况,并在链路源节点进行数据发送调节。仿真结果表明,这种基于跨层反馈的拥塞控制策略(CLFC2)能有效缓解链路拥塞状况,在负荷严重的情况下能提供更好的通信质量。Based on IEEE 802.16 Mesh networks,a novel congestion control strategy is proposed.On one hand,every node control congestion locally according to its congestion situation.Besides,congestion control is implemented among the three nodes in every two adjacent hops.On the other hand,the congestion situation of a link is provided by cross-layer feedback,then packet transmission is controlled at the source node.The simulation results show that this congestion control strategy based on cross-layer feedback（CLFC2） is effective for alleviating congestion,and can guarantee better communication quality in an overload network.

关 键 词：拥塞控制 跨层 网状网 指针 链路级控制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]