An Orthogonal Code-Division Multiplexing and Time-hopping Multiple Access Transmission Scheme for UWB Communications  

作　　者：LV Tiejun 

机构地区：[1]School of Information Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

出　　处：《Chinese Journal of Electronics》2009年第1期132-136,共5页电子学报（英文版）

基　　金：This work is supported by the National Natural Science Foundation of China （No.60572118） and Program for New Century Excellent Talents in University （No.NCET-06-0091）.

摘　　要：We propose an Orthogonal code-division multiplexing and Time-hopping multiple access （OCDM-THMA） transmission scheme for Ultra-wide bandwidth （UWB） communications in a multi-user and multipath environment. The design achieves high data throughput due to the use of the orthogonal code division multiplexing transmission technology for individual users. The data bits from each user are mapped by using the serial-parallel transform, and then are summed and transmitted simultaneously after being modulated by their corresponding orthogonal code sequences. At the receiving side, we employ a Rake-receiver to combat multipath fading. The Biterror-rate （BER） performance in the presence of Multiple access interference （MAI） is analyzed for multipath channels.

关 键 词：Orthogonal code-division multiplexing Time-hopping UWB （Ultra-wide bandwidth） Rakereceiver Multipath fading MULTI-USER 

分 类 号：TN92[电子电信—通信与信息系统] TN929.5[电子电信—信息与通信工程]