Title :
A novel iterative equalization algorithm for multicode CDMA system with V-BLAST architecture
Author :
Zhao, Junhui ; Li, Xiuping
Author_Institution :
Fac. of Inf. Technol., Macao Univ. of Sci. & Technol., Macau
Abstract :
In this paper, a space-time iterative equalization algorithm for multi-code CDMA system with V-BLAST architecture (MC-VBLAST) is proposed. Also, a novel iterative equalization structure is obtained. The receiver performs two successive soft input soft output model, first from a MMSE equalizer and then from a turbo decoder. Soft information got from previous iteration is used as a priori information for the next iteration. Simulation results demonstrate that the proposed algorithm offers significant performance gain over traditional, non-iterative receiver structures.
Keywords :
channel coding; code division multiple access; equalisers; iterative decoding; least mean squares methods; radio receivers; turbo codes; MMSE equalizer; V-BLAST architecture; channel coding; multicode CDMA system; soft input soft output model; space-time iterative equalization algorithm; turbo decoder; Covariance matrix; Data communication; Detectors; Information technology; Iterative algorithms; Multiaccess communication; Multiple access interference; Receiving antennas; Space technology; Transmitting antennas;
Conference_Titel :
Consumer Communications and Networking Conference, 2005. CCNC. 2005 Second IEEE
Print_ISBN :
0-7803-8784-8
DOI :
10.1109/CCNC.2005.1405171
