DocumentCode :
1893712
Title :
Unified design of linear space-time block codes
Author :
Sandhu, Sumeet ; Paulraj, Arogyaswami
Author_Institution :
Inf. Syst. Lab., Stanford Univ., CA, USA
Volume :
2
fYear :
2001
fDate :
2001
Firstpage :
1073
Abstract :
A number of space-time codes have recently been proposed for the quasi-static, flat-fading, multiple-antenna wireless channel with coherent receiver. We focus on space-time codes that are linear in the scalar input symbols. We provide design criteria that take into account both the error probability and the channel capacity. We consider the error probability via the union bound instead of the conventional pairwise error probability and provide conditions on unitary codes to minimize the union bound. Then, we provide conditions on linear codes to maximize channel capacity, i.e. capacity-efficient codes. Finally we provide design rules that optimize the error performance of capacity-efficient codes, and demonstrate performance improvements via simulations
Keywords :
block codes; channel capacity; error statistics; fading channels; linear codes; matrix algebra; modulation; receiving antennas; block codes; channel capacity; coherent receiver; error probability; flat-fading channel; gradient based optimization; linear codes; modulation matrices; multiple receive antennas; scalar input symbols; space-time codes; union bound; unitary codes; Block codes; Channel capacity; Design optimization; Error probability; Linear code; Modulation coding; Receiving antennas; Signal design; Space time codes; Transmitters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
Type :
conf
DOI :
10.1109/GLOCOM.2001.965637
Filename :
965637
Link To Document :
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