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A Simplified Ordering Scheme Minimizing Average BER for MIMO Systems with Adaptive Modulation

Kyeongyeon KIM, Seijoon SHIM, Chungyong LEE, Young Yong KIM

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Summary :

This paper proposes a new detection ordering scheme, which minimizes average error rate of the MIMO system with per antenna rate control. This paper shows an optimal scheme minimizing average error rate expressed by the Q function, and simplifies the optimal scheme by using the minimum equivalent SINR scaled by modulation indices, based on approximated error rate. In spite of reduced complexity, the simplified scheme demonstrates the almost same performance as the optimal scheme. Owing to the diversity of detection ordering, the proposed scheme has over 2 dB higher SNR gain at the BER of 10-3 than the existing ordering schemes in balanced array size systems.

Publication
IEICE TRANSACTIONS on Communications Vol.E88-B No.11 pp.4390-4393
Publication Date
2005/11/01
Publicized
Online ISSN
DOI
10.1093/ietcom/e88-b.11.4390
Type of Manuscript
LETTER
Category
Wireless Communication Technologies

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