摘要： 随着网络服务类型的增加和用户对带宽需求的增长，宽带无线接入技术受到关注。该文介绍IEEE802.16的Mesh结构，阐述在Mesh结构下的拥塞控制，提出一种动态改变传输等待时间指针和动态分配微时隙的拥塞控制方法。仿真结果证明，该方法可有效控制拥塞，增加吞吐量，降低丢包率和端到端时延。

关键词: IEEE802.16技术, 网状网, 拥塞控制, 指针, 微时隙

Abstract: With the increase of network service types and users broadband demand, Broadband Wireless Access(BWA) has become the focus of people’s attention. This paper introduces the Mesh mode of IEEE802.16, discusses congestion control in Mesh mode, and presents a new method through dynamically adjusting the exponent of transmission holdoff time and allocating minislot to control congestion. Simulation results show that the congestion can be controlled effectively, throughput is increased, packet loss rate and end-to-end delay are decreased.

Key words: IEEE802.16 technology, Mesh networks, congestion control, exponent, minislot

中图分类号: 

• TP274.2