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Multiuser diversity and multiplexing using multiple random beams in wireless systems

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Authors
Hwang, Sung-Soo; Lee, Yong-Hwan
Issue Date
2007-01
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
IEEE Trans. Wireless Commun., vol. 6, pp. 120-127, Jan.2007
Keywords
Multiple beams
Abstract
In this paper, we propose a new multiple-antenna transmission scheme that can simultaneously achieve both diversity
and multiplexing gain in the multi-user domain, by using multiple random beams. Multiple beams are generated so that
the users encounter multiple channels at the same time, enabling the use of multi-user diversity through each channel. Although
the signal-to-noise power ratio (SNR) of each channel is reduced in proportion to the number of beams, multiple beams are
generated so that the multiplexing gain is larger than the decrease of SNR, increasing the overall system capacity.
ISSN
1536-1276
Language
English
URI
http://hdl.handle.net/10371/6725
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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