The improvement of adaptive bit and power loading algorithm with low complexity in MIMO-OFDM systems

Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is a promising technology for high data rate transmission in wideband wireless systems for achieving high downlink capacities in future cellular systems. In this paper subcarrier and power allocation to each user a...

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Bibliographic Details
Published in2009 3rd International Conference on Internet Multimedia Services Architecture and Application pp. 1 - 5
Main Authors Liu Jiancai, Yang Wanwan, Zheng Weili, Wang Yafu, Ye Zhihui, Xu Jiakai, Ning Xinbao
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2009
Subjects
adaptive loading
Algorithm design and analysis
BER
Bit error rate
Chow-Campello algorithm
Computational complexity
Computational modeling
Demodulation
Fast Fourier transforms
Frequency division multiplexing
MIMO
MIMO-OFDM
OFDM
Samarium
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Summary:Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is a promising technology for high data rate transmission in wideband wireless systems for achieving high downlink capacities in future cellular systems. In this paper subcarrier and power allocation to each user at base-station is allocated to maximize the user data rates, subject to constraints on total power and bit error rate (BER). The chow-campello algorithm has been introduced and analyzed, and a low complexity algorithm has been proposed. The simulation results show that the proposed algorithm can achieve similar performance with much lower computational complexity, which indicates that the proposed algorithm is effective when compared to the existing algorithms.
ISBN:1424447925
9781424447923
DOI:10.1109/IMSAA.2009.5439457