Title :
Group-Wise Joint Detection for Dual Rate TD-SCDMA Systems
Author :
Yang, Zan ; Cheng, Xiang ; Zhao, Yuping ; Wei, Xing
Author_Institution :
State Key Lab. of Adv. Opt. Commun. Syst. & Networks, Peking Univ. Beijing, Beijing, China
Abstract :
In this paper, a group-wise joint detection (JD) algorithm is proposed for dual rate time division-synchronization code division multiple access (TD-SCDMA) systems. The proposed algorithm first groups users based on their data rates and then deals with them group by group starting from the group of high data rate users (HRUs). Simulation results illustrate that compared to conventional JD algorithms, the proposed algorithm can improve the performance of low data rate users (LRUs) significantly while having similar performance for HRUs, with negligible computational complexity increase. It is worth mentioning that the proposed group-wise JD algorithm can be easily extended for the application in multi-rate TD-SCDMA systems.
Keywords :
code division multiple access; computational complexity; time division multiple access; JD algorithms; computational complexity; dual rate TD-SCDMA systems; group-wise joint detection; high data rate users; low data rate users; time division-synchronization code division multiple access; Algorithm design and analysis; Detectors; Estimation; Joints; Multiuser detection; Time division synchronous code division multiple access;
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-8332-7
DOI :
10.1109/VETECS.2011.5956372
