Title :
An improved DFE decoding for the V-BLAST system
Author :
Yang, Yi ; Wu, Yue ; Yan, Hongsen
Author_Institution :
Sch. of Electron. & Inf. Eng., Xi´´an Jiaotong Univ., China
Abstract :
Using multiple antennas at the transmitter and receiver, Vertical Bell Laboratories Layered Space-Time (V-BLAST) system exploits the multipath characteristics of a wireless channel to enable very large capacities. However, the V-BLAST original detection algorithm using the decision feedback equalization (DFE) is not optimum in maximum likelihood sense. This paper proposes an improved DFE decoding algorithm for V-BLAST system that gives significant improvement in error performance with little increase in computational power. And the new algorithm can be easily used for the performance-complexity trade-off by appropriately choosing two parameters.
Keywords :
adaptive antenna arrays; decision feedback equalisers; decoding; maximum likelihood detection; multipath channels; space-time adaptive processing; DFE decoding; V-BLAST system; Vertical Bell Laboratories Layered Space-Time system; decision feedback equalization; maximum likelihood detection; multiple antennas; performance-complexity trade-off; receiver; transmitter; wireless channel; Decision feedback equalizers; Detection algorithms; Maximum likelihood decoding; Maximum likelihood detection; Quadrature amplitude modulation; Receiving antennas; Timing; Transmitters; Transmitting antennas; Wireless sensor networks;
Conference_Titel :
Communication Technology Proceedings, 2003. ICCT 2003. International Conference on
Print_ISBN :
7-5635-0686-1
DOI :
10.1109/ICCT.2003.1209718