Volume 2 Number 4 (Aug. 2010)
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IJCEE 2010 Vol.2 (4): 613-616 ISSN: 1793-8163
DOI: 10.7763/IJCEE.2010.V2.200

Switching in MIMO-Frequency Selective Channels

Krishnaiah Tadakamalla and Kishore Kokkula

Abstract—Multiple transmit and receive antenna systems have recently become of interest because it provides enormous capacity without any extra cost and power. Two practical techniques for space-time modulation are transmit diversity and spatial multiplexing. In this paper we propose switching condition for multiplexing or diversity suitable in frequency selective channels, by assuming finite length MMSE-DFE is using at the receiver for equalization. The decision is sent to transmitter via low feedback rate channel to switch between the diversity and multiplexing. Spatial multiplexing and space-time block code with two transmit two receive antennas on a typical urban COST-203 MIMO channel is taken as a case study for simulation.

Index Terms—MIMO, MMSE-DFE, Frequency selective channels, Alamouti code, Diversity.

The authors are with IIT Guwahati/ECE Dept., Guwahati, India(email:k.tadakamalla@iitg:ernet:in, kkishore@iitg:ernet:in).

Cite: Krishnaiah Tadakamalla and Kishore Kokkula, "Switching in MIMO-Frequency Selective Channels," International Journal of Computer and Electrical Engineering vol. 2, no. 4, pp. 613-616, 2010.

General Information

ISSN: 1793-8163 (Print)
Abbreviated Title: Int. J. Comput. Electr. Eng.
Frequency: Quarterly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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