Closed-Form Exact BER and Optimization of Generalized Orthogonal STBCs

Author

Kim, Il-Min ; Kim, Dongwoo

Author_Institution

Dept. of ECE, Queen´´s Univ., Kingston, ON

Volume

7

Issue

9

fYear

2008

fDate

9/1/2008 12:00:00 AM

Firstpage

3323

Lastpage

3328

Abstract

The closed-form exact bit error rate (BER) expressions of generalized orthogonal space-time block codes (OSTBCs) are first derived for quadrature amplitude modulation (QAM) and phase shift keying (PSK) constellations in spatially white Rayleigh multiple input multiple output (MIMO) channels. Then this analysis is generalized to arbitrarily spatially correlated MIMO channels. Based on the BER analysis, the transmission power of the generalized OSTBCs is optimized such that the average BER is minimized. Furthermore, the optimum transmit power which maximizes the upper-bound of the capacity is derived in closed-form.

Keywords

MIMO communication; Rayleigh channels; block codes; channel coding; error statistics; phase shift keying; quadrature amplitude modulation; space-time codes; PSK; QAM; closed-form exact BER; closed-form exact bit error rate; correlated MIMO channels; generalized orthogonal STBC; generalized orthogonal space-time block codes; phase shift keying; quadrature amplitude modulation; spatially white Rayleigh multiple input multiple output channels; Bit error rate; Block codes; Channel capacity; Error analysis; MIMO; Maximum likelihood detection; Phase shift keying; Quadrature amplitude modulation; Space technology; System performance; Bit error rate; capacity; correlated channels; generalized orthogonal STBCs;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2008.070349

Filename

4626305