Title :
Orthogonal switched beams for downlink diversity transmission
Author :
Lei, Zhongding ; Chin, Francois P S ; Liang, Ying-Chang
Author_Institution :
Inst. for Infocomm Res., Singapore, Singapore
fDate :
7/1/2005 12:00:00 AM
Abstract :
A downlink transmission scheme in a switched-beam antenna system for providing diversity and beamforming simultaneously based on the space-time block coding technique is proposed. The scheme involves selecting multiple beams based on the uplink reception of the switched-beam antenna system, and determining multiple orthogonal beams from the selected beams. With the orthogonal transmit beams, the proposed switched-beam antenna system outperforms conventional switched-beam systems and approaches the optimal performance achievable by a much complex adaptive antenna system.
Keywords :
array signal processing; block codes; diversity reception; space-time codes; STBC; adaptive antenna array; beamforming; downlink transmission scheme; orthogonal switched-beam antenna system; smart antenna; space-time block coding technique; transmit diversity; Adaptive arrays; Antennas and propagation; Array signal processing; Diversity reception; Downlink; Fading; Linear antenna arrays; Receiving antennas; Transmitting antennas; Wireless communication; Adaptive antenna array; smart antenna; space–time block coding (STBC); switched beam antenna array; transmit diversity;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2005.850751
