Hybrid SC/MRRC Technique for OFDM Systems

Won Gi JEON  Hyeok Koo JUNG  

IEICE TRANSACTIONS on Communications   Vol.E89-B   No.3   pp.1003-1006
Publication Date: 2006/03/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.3.1003
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
frequency diversity,  SC,  MRRC,  OFDM,  

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In this letter, a hybrid selection combining (SC) and maximal ratio receive combining (MRRC) technique is proposed for orthogonal frequency-division multiplexing (OFDM) systems with multiple receive antennas. The proposed technique still uses multiple receive antennas, but it has just a single RF front-end and a single baseband demodulator. In comparison with the OFDM system with no diversity, we can achieve superior gain irrespective of bandwidth efficiency, and also in comparison with the MRRC OFDM, we can achieve better gain under the bandwidth efficiency of 3 bps/Hz at the bit error rate of 10-6.