DocumentCode :
2474470
Title :
Direction-of-transmission estimation in multiple-input single-output wireless communication systems
Author :
Lee, Wookwon
Author_Institution :
Dept. of Electr. Eng., Arkansas Univ., Fayetteville, AR, USA
fYear :
2004
fDate :
19-22 Sept. 2004
Firstpage :
379
Lastpage :
382
Abstract :
For transmit beamforming in cellular communication systems, a new approach was recently introduced in which transmit beamforming at a base station is based on a stream of simple beam-control commands (BCC) from mobiles and each mobile estimates its relative location in order to generate BCC. In this paper, for mobiles equipped only with a single-element antenna, we present a least-squares (LS) estimator and two neighboring set search (NSS) estimators for the direction-of-transmission (DOT) of signals transmitted from the base station equipped with a multiple-element antenna array. From computer simulation, the performance of the proposed estimators is evaluated in terms of root-mean-square (rms) error in degrees.
Keywords :
array signal processing; cellular radio; direction-of-arrival estimation; least squares approximations; mobility management (mobile radio); search problems; BCC; LS estimator; NSS estimators; beam-control commands; cellular communication systems; direction-of-transmission estimation; least-squares estimator; mobile location estimation; multiple-input single-output systems; neighboring set search; performance; rms error; root-mean-square error; single-element antenna; transmit beamforming; wireless communication systems; Antenna arrays; Array signal processing; Base stations; Computer errors; Computer simulation; Directive antennas; Mobile antennas; Transmitting antennas; US Department of Transportation; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Radio and Wireless Conference, 2004 IEEE
Print_ISBN :
0-7803-8451-2
Type :
conf
DOI :
10.1109/RAWCON.2004.1389155
Filename :
1389155
Link To Document :
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