A novel two-dimension simplified subcarrier allocation with fairness for multiuser MIMO-OFDM transmission

In this paper, a real-time subcarrier allocation algorithm with fair consideration is proposed based on simplification at both antenna dimension and frequency dimension. By knowing the channel characteristic of all users, our goal is to assign subcarriers to each user fairly and reduce computational...

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Vydané v:2007 International Symposium on Intelligent Signal Processing and Communication Systems s. 148 - 151
Hlavní autori: Lei Guo, Guangxi Zhu, Jian Liu
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.11.2007
Predmet:
adaptive subcarrier allocation
antenna selection
Computational complexity
Computational modeling
Fading
MIMO
multiuser
OFDM
Real time systems
Resource management
Signal processing
Signal processing algorithms
Transmitters
Transmitting antennas
ISBN:1424414466, 9781424414468
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Popis
Shrnutí:In this paper, a real-time subcarrier allocation algorithm with fair consideration is proposed based on simplification at both antenna dimension and frequency dimension. By knowing the channel characteristic of all users, our goal is to assign subcarriers to each user fairly and reduce computational complexity with requirement of minimizing the overall transmit power subject to the proportional rate constraints. Simulation results show that our proposed algorithm presents fairness in subcarrier allocation and outperform none antenna-dimension employed multiuser MIMO-OFDM transmission with significant computational complexity reduction.
ISBN:1424414466
9781424414468
DOI:10.1109/ISPACS.2007.4445845