An adaptive technique for transmit antenna diversity with feedback

Author

Choi, Jinho ; Choi, Ho Kyu ; Lee, Hyeon Woo

Volume

51

Issue

4

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

617

Lastpage

623

Abstract

Transmit antenna diversity (TAD) has been employed for third-generation wireless systems. We propose an adaptive technique for TAD with feedback. It is shown that the proposed adaptive technique can efficiently increase the number of transmit antennas without significantly increasing the feedback bit rate under ideal conditions. As a result, we can increase the number of transmit antennas and expect a performance improvement. Unfortunately, the proposed adaptive technique suffers from channel variation and error propagation due to feedback error. From this, the use of the adaptive technique shall be limited: it can be effective for indoor communications and for pedestrians with a reliable feedback channel

Keywords

adaptive antenna arrays; cellular radio; diversity reception; feedback; indoor radio; transmitting antennas; QPSK; adaptive technique; channel variation; error propagation; feedback; feedback bit rate; feedback error; indoor communications; pedestrians; quadrature phase-shift keying; reliable feedback channel; third-generation wireless systems; transmit antenna diversity; Adaptive arrays; Antenna feeds; Antennas and propagation; Bit rate; Fading; Feedback; Indoor communication; Receiving antennas; Transmitting antennas; Wireless communication;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2002.1015313

Filename

1015313