AN IMPROVED CHANNEL DETECTION METHOD FOR IEEE 802.11N MIMO SYSTEM

作     者：Yao Xiaocheng Jian Haifang Fang Zhi Shi Yin 

作者机构：Institute of Semiconductors Chinese Academy of Science Beijing 100083 China 

出 版 物：《Journal of Electronics(China)》 (电子科学学刊（英文版）)

年 卷 期：2011年第28卷第4期

页      面：658-663页

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 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] 

主　　题：MIMO-OFDM Channel detection Carrier sense Energy detection 

摘      要：Coexistence and interoperability between 20 MHz and 40 MHz device and modes of op-erations are stressed in standard IEEE 802.11n *** is mandate to report the both sub-channels states to Medium Access Control(MAC) at receiver,since for 40 MHz device,it should serve not only 20 MHz but also 40 MHz signals *** energy detection and carrier sense are employed to detect channel *** the case of 20/40 M mode,the power difference between the two sub-channels is also detected in order to report the channel state *** simulation results demonstrate that the performance of the proposed methods are much better than the methods which just employ energy ***,the simulation results show that the proposed methods ensure that the channel sensing is not a roadblock of IEEE 802.11n system design.