Symbol-based processing with balanced subcarrier performance for MIMO-OFDM systems

Author

Lee, Yinman ; Hsieh, Yun-Jung ; Shieh, Hong-Wei

Author_Institution

Grad. Inst. of Commun. Eng., Nat. Chi Nan Univ., Nantou

Volume

13

Issue

3

fYear

2009

fDate

3/1/2009 12:00:00 AM

Firstpage

167

Lastpage

169

Abstract

Recently, symbol-based beamforming/combining has been introduced for OFDM systems with multiple transmit and receive antennas. Despite the complexity reduction, the resultant SNR values of different subcarriers are often not balanced, and it limits the system performance. In this letter, we propose to use the max-min criterion to overcome the problem. Simulation results show that the error-rate performance of the proposed symbol-based processing scheme can be improved as compared with that of the conventional one.

Keywords

MIMO communication; OFDM modulation; receiving antennas; transmitting antennas; MIMO-OFDM systems; SNR; balanced subcarrier; complexity reduction; max-min criterion; multiple receive antennas; multiple transmit antennas; symbol-based beamforming/combining; symbol-based processing; Array signal processing; Diversity reception; Frequency division multiplexing; Frequency domain analysis; MIMO; OFDM; Receiving antennas; Signal processing; System performance; Wireless communication; MIMO; OFDM; max-min criterion; symbol-based beamforming/combining;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2009.081867

Filename

4799012