SHERP

Multi-beam multiplexing using multiuser diversity and random beams in wireless systems

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Authors
Hwang, Sung-Soo; Lee, Yong-Hwan
Issue Date
2005-05
Citation
ICC 2005. 2005 IEEE International Conference on Communications, vol. 4, pp. 2717-2721, 2005
Keywords
MultiusermultiplexingMIMOmultiple random beams
Abstract
In this paper, we propose a new multiple-access
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.
Since the transmit power is spilt into multiple channels, the
signal-to-noise power ratio (SNR) of each channel is reduced in
proportion to the number of beams. However, multiple beams
are generated so that the multiplexing gain is much larger than
the decrease of SNR, increasing the overall system capacity. The
proposed scheme works well in both Rician and Rayleigh fading
channels regardless of the channel correlation, providing the
maximum capacity in multiuser and multi-antenna systems in
practice. The proposed scheme is applicable to both MIMO and
MISO systems, enabling the use of receivers with flexible antenna
structure
Language
English
URI
http://www.ww-rf.org

http://hdl.handle.net/10371/7570
DOI
https://doi.org/10.1109/ICC.2005.1494842
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Others_전기·정보공학부
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