Efficient Feedback Design for Spatial Phase Coding in MISO-OFDM Systems

Jeong-Chul SHIN  Jee-Hoon KIM  Hyoung-Kyu SONG  

IEICE TRANSACTIONS on Communications   Vol.E94-B   No.7   pp.2149-2152
Publication Date: 2011/07/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.2149
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
MISO-OFDM,  SPC,  transmit diversity,  

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Recently, a new diversity scheme called spatial phase coding (SPC) have been introduced. In conventional SPC, it was assumed that the channel phases between the transmit antennas and the receive antenna independently vary. However, practical channel phase dependently vary between neighboring subcarriers. In this letter, a feedback design method which is more efficient than conventional SPC is proposed. Furthermore, the scheme to improve the BER performance of conventional SPC using 1-bit feedback is suggested.