SHERP

An orthogonal multi-beam based MIMO scheme for multi-user wireless systems

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Authors
Oh, Dong-Chan; Lee, Yong-Hwan
Issue Date
2005-05
Citation
VTC 2005-Spring. 2005 IEEE 61st Vehicular Technology Conference, vol. 2, pp. 919-923, 2005
Keywords
orthogonal multi-beamMIMOmulti-user
Abstract
In this paper, we propose a multiple-access
transmission scheme that can simultaneously achieve both
diversity and multiplexing gain in the multi-user multi-input
multi-output (MIMO) domain, by using orthogonal multiple
random beams. Orthogonal 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 utilized so that the multiplexing gain is larger than
the decrease of SNR, increasing the overall system capacity.
The proposed scheme can generate spatial channels as many as
the number of transmit antennas regardless of the number of
receiver antennas, while requiring partial channel information
at the transmitter. Thus, the proposed scheme is applicable to
multi-input single-output (MISO) schemes as well as MIMO
schemes, enabling the use of flexible antenna structures in the
receiver.
Language
English
URI
http://www.ieeevtc.org/vtc2005spring

http://hdl.handle.net/10371/7561
DOI
https://doi.org/10.1109/VETECS.2005.1543440
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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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