Multiuser subcarriers and bit allocation combining adaptive mapping for SC-FDMA system  

作　　者：ZHANG Yu-mei XIN Yu YANG Da-cheng 

机构地区：[1]School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China [2]Zhongxing Telecommunication Equipment, Shenzhen 518004, China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2008年第3期41-46,共6页中国邮电高校学报（英文版）

基　　金：the ZTE Research Foundation

摘　　要：In this article, a multiuser single carrier frequency division multiple access （SC-FDMA） system is considered, based on which an adaptive subcarrier and bit allocation algorithm is investigated. The algorithm has been used to achieve a subcarrier mapping mode in this system, which combines the advantages of single- and multi-carrier transmissions, such as, low peak to average power ratio, orthogonality of signals of different users, and low complexity. Simulation results show that it has a similar performance as that of the adaptive allocation algorithm in the orthogonal frequency division multiple （OFDM） system and the proposed mapping mode has a performance gain over the two existing mapping modes at the link level.In this article, a multiuser single carrier frequency division multiple access （SC-FDMA） system is considered, based on which an adaptive subcarrier and bit allocation algorithm is investigated. The algorithm has been used to achieve a subcarrier mapping mode in this system, which combines the advantages of single- and multi-carrier transmissions, such as, low peak to average power ratio, orthogonality of signals of different users, and low complexity. Simulation results show that it has a similar performance as that of the adaptive allocation algorithm in the orthogonal frequency division multiple （OFDM） system and the proposed mapping mode has a performance gain over the two existing mapping modes at the link level.

关 键 词：adaptive subcarrier and bit allocation SC-FDMA subcarrier mapping modes bit error ratio （BER） 

分 类 号：TN929.531[电子电信—通信与信息系统]