NDLI: Alamouti-type wireless communication systems with one-bit feedback

Content Provider	IEEE Xplore Digital Library
Author	Xue, Y. Gershman, A.B.
Copyright Year	2004
Description	Author affiliation: Dept. of Comm. Syst., Duisburg-Essen Univ., Duisburg, Germany (Xue, Y.)
Abstract	The use of one-bit channel state feedback with the Alamouti-type wireless link using two transmit and one receive antennas is studied. An exact analysis of the symbol error rate (SER) is presented for several alternative schemes: the standard Alamouti system without feedback as well as three different systems with one-bit feedback. Later schemes involve systems with transmit antenna selection, diagonal weighting, and power control at the transmitter. Our study shows that quite significant performance improvements can be obtained by exploiting one-bit feedback if it is (nearly) perfect. However, if the feedback is unreliable then the performance of the methods designed under the perfect feedback assumption deteriorates substantially and can be even worse than that of the standard Alamouti system without feedback. To improve the performance of the feedback-based schemes in the imperfect feedback case, we propose new robust modifications of the one-bit feedback-based Alamouti-type schemes. Thus robust technique takes the advantages of reliable feedback knowledge.
Starting Page	143
Ending Page	147
File Size	827211
Page Count	5
File Format	PDF
ISBN	0780385454
DOI	10.1109/SAM.2004.1502925
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-18
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Transmitters Transmitting antennas Robustness Antenna feeds Control systems Receiving antennas Power control State feedback Design methodology
Content Type	Text
Resource Type	Article

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