Title :
Relative threshold tree pruning multi-user detection with user ordering and user partitioning for MC-CDMA
Author :
Tsai, Sheng-Fu ; Li, Yi-Lin ; Lee, Yumin
Author_Institution :
Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
In this paper, we propose a reduced complexity tree-based multi-user detection algorithm called relative threshold tree pruning (RTTP) for MC-CDMA. Two enhancements to RTTP - user ordering and user partitioning - are also investigated. Simulation results show that RTTP outperforms the conventional M-algorithm in both error performance and complexity.
Keywords :
code division multiple access; computational complexity; maximum likelihood detection; multiuser detection; spread spectrum communication; trees (mathematics); M-algorithm; MC-CDMA; computational complexity; error performance; relative threshold tree pruning multiuser detection; spread spectrum communication; user ordering algorithm; user partitioning algorithm; Intersymbol interference; Multicarrier code division multiple access; Multiple access interference; Multiuser detection; OFDM; Partitioning algorithms; Performance gain; Sorting; Spread spectrum communication; Symmetric matrices;
Conference_Titel :
Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE
Print_ISBN :
0-7803-8344-3
DOI :
10.1109/WCNC.2004.1311516
