Title :
On the complexity and performance of strategies for symbol detection in multi-antenna wireless LAN
Author :
Penketh, J. ; Collados, M.
Author_Institution :
Univ. Coll. London, UK
Abstract :
This paper discusses the symbol detection complexity of several orthogonal frequency division multiplexing wireless communication schemes using multiple-input multiple-output channels. We investigate spatial diversity (SD) and spatial multiplexing (SM) architectures. For the SD case we discuss an efficient example of space-time block coding, namely the Alamouti scheme. For the SM case we examine linear filtering, using both the zero-forcing and minimum mean squared error design criteria, and also the nonlinear maximum likelihood detection method. A comparison of the packet error rate performance of the various systems is then provided, followed by a thorough analysis of implementational complexity.
Keywords :
MIMO systems; OFDM modulation; block codes; computational complexity; diversity reception; error statistics; least mean squares methods; maximum likelihood detection; nonlinear estimation; packet radio networks; space division multiplexing; space-time codes; wireless LAN; Alamouti scheme; implementational complexity; linear filtering; minimum mean squared error design; multi-antenna wireless LAN; multiple-input multiple-output channels; nonlinear maximum likelihood detection; orthogonal frequency division multiplexing; packet error rate performance; performance; space-time block coding; spatial diversity; spatial multiplexing architectures; symbol detection complexity; symbol detection strategies; wireless communication schemes; zero-forcing design; Computer architecture; Costs; Error analysis; MIMO; Maximum likelihood detection; OFDM; Radio frequency; Samarium; Transceivers; Wireless LAN;
Conference_Titel :
Signal Processing Systems, 2004. SIPS 2004. IEEE Workshop on
Print_ISBN :
0-7803-8504-7
DOI :
10.1109/SIPS.2004.1363021
