Handover with resource pre-allocation in the OFDMA systems

作     者：LI Ming-ju XU Ning WANG Ying ZHANG Ping 

作者机构：Key Laboratory of Universal Wireless Communications (Beijing University ofPosts and Telecommunications) Ministry of Education Wireless TechnologyInnovation Institute Beijing 100876. China 

出 版 物：《The Journal of China Universities of Posts and Telecommunications》 (中国邮电高校学报（英文版）)

年 卷 期：2007年第14卷第4期

页      面：27-31,52页

核心收录：

学科分类：0810[工学-信息与通信工程] 1205[管理学-图书情报与档案管理] 080904[工学-电磁场与微波技术] 0809[工学-电子科学与技术（可授工学、理学学位）] 0839[工学-网络空间安全] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：the National Natural Science Foundation of China(60496312) the Hi-TechResearch and Development Program of China(2006AA012260)and Huawei Company 

主　　题：handover OFDMA resource preallocation subchannel booking rule CSI 

摘      要：This article proposed a new handover algorithm for beyond the third generation （B3G） systems with an orthogonal frequency division multiple access （OFDMA） downlink. In the proposed algorithm, handover mobile termination （MT） chooses a subchannel set in the candidate cells by a subchannel booking rule, based on the terminal speed and the subchannel＇s channel state information （CSI）. Moreover, the handover decision is made after analyzing if at least one candidate cell can reserve the subchannel set for the handover user. Simulation results show that the algorithm reduces the number of handovers and guarantees the quality of service （QoS） for the handover users. It yields better system performance in the OFDMA systems.