EURASIP Journal on Advances in Signal Processing 
Volume 2008 (2008), Article ID 716826, 14 pages
doi:10.1155/2008/716826
Review Article

Antenna Subset Selection for Cyclic Prefix Assisted MIMO Wireless Communications over Frequency Selective Channels

A. Wilzeck1 and T. Kaiser2

 1Institute of Communications Technology, Leibniz University of Hannover, Appelstr. 9a, 30167 Hannover, Germany
2mimoOn GmbH, Technology Center of Duisburg, Bismarckstr. 120, 47057 Duisburg, Germany
Received 31 May 2007; Revised 21 September 2007; Accepted 15 January 2008

Recommended by Markus Rupp

Abstract

Antenna (subset) selection techniques are feasible to reduce the hardware complexity of multiple-input multiple-output (MIMO) systems, while keeping the benefits of higher-order MIMO systems. Many studies of antenna selection schemes are based on frequency-flat channel models, which are inconsistent to broadband MIMO systems employing spatial-multiplexing. In broadband MIMO systems aiming to provide high-data-rate links, the employed signal bandwidth is typically larger than the coherence bandwidth of the channel so that the channel will be of frequency selective nature. Within this contribution we provide an overview on joint transmitter- and receiver-side antenna subset selection methods for frequency selective channels and deploy them in MIMO orthogonal frequency division multiplexing (OFDM) systems and MIMO single-carrier (SC) systems employing frequency domain equalization (FDE).