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Transmit Power Allocation for BER Performance Improvement in Multicarrier Systems

Cited 50 time in Web of Science Cited 74 time in Scopus
Authors
Park, Chang Soon; Lee, Kwang Bok
Issue Date
2004-10
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
IEEE Trans. Commun., vol. 52, pp.1658-1663, Oct. 2004
Keywords
Bit-error rate (BER)diversitymulticarriertransmit power allocation
Description
This paper was presented
in part at the IEEE International Symposium on Personal, Indoor, and Mobile
Radio Communications, Lisbon, Portugal, September 2002.
Abstract
In a multicarrier system, transmit power allocation
over different subchannels is an effective means of improving the
performance. We develop the optimal transmit power allocation
scheme to improve bit-error rate (BER) performance in a multicarrier
system with diversity reception. A simple suboptimal
scheme is also derived from the optimal one, and an asymptotic
case referred to as the equal-signal-to-noise ratio scheme
is discussed. Numerical results show that the optimal and suboptimal
power allocation schemes significantly outperform the
equal power allocation scheme. The effects of the modulation
level, the number of receiving antennas, and the number of
subchannels on the BER performance are also investigated.
ISSN
0090-6778
Language
English
URI
http://hdl.handle.net/10371/7112
DOI
https://doi.org/10.1109/TCOMM.2004.836491
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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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