WiMAX网络的切换技术研究  

Research on handoff technology of WiMAX Network

作　　者：陆凯[1] 徐旨胜[1] 

机构地区：[1]南京邮电大学通信与信息工程学院,江苏南京210003

出　　处：《电力系统通信》2007年第12期50-53,共4页Telecommunications for Electric Power System

摘　　要：基于IEEE 802.16系列协议的WiMAX网络将按照固定、游牧、移动的趋势发展。其中的IEEE 802.16e协议是面向全面移动性的,该协议对物理层做了重大改进,并在媒体接入控制子层增加了切换流程等新特性。文章详细描述了WiMAX网络系统结构以及结构中ASN内和ASN间的2种切换方式及机理,介绍了切换流程和步骤,并综合2种方式给出了单个ASN内多ASN-GW和BS的切换流程和步骤,为进一步设计高效、稳定的切换算法奠定了基础。WiMAX network, based on IEEE 802.16 protocol suite, evolves from fixed to portable and mobile operation. In IEEE 802.16e protocol, the physical layer has been improved and new characteristics such as handoff process in multimedia access control layer have been added. This paper first introduces the network configuration of WiMAX, describes two ways of handoff and their mechanisms in detail. Then it introduces their handoff procedure among ASN-GWs and BSs in one ASN by combining with the two ways mentioned above. It establishes a foundation for the design of high efficiency and steady handoff arithmetic.

关 键 词：WIMAX 切换 IEEE801.16e 

分 类 号：TN929.5[电子电信—通信与信息系统]