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Title of Journal: Wireless Pers Commun

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Abbravation: Wireless Personal Communications

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Springer US

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DOI

10.1007/bf00448565

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1572-834X

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Euclidean Geometry LDPCVBLAST System Design and P

Authors: Panupat Poocharoen Mario E Magaña
Publish Date: 2008/10/10
Volume: 50, Issue: 3, Pages: 401-416
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Abstract

Among popular multitransmit and multireceive antennas techniques the VBLAST Vertical Bell Laboratories Layered SpaceTime architecture has been shown to be a good solution for wireless communications applications that require the transmission of data at high rates Recently the application of efficient error correction coding schemes such as low density paritycheck LDPC codes to systems with multitransmit and multireceive antennas has shown to significantly improve bit error rate performance Although irregular LDPC codes with nonstructure are quite popular due to the ease of constructing the parity check matrices and their very good error rate performance the complexity of the encoder is high Simple implementation of both encoder and decoder can be an asset in wireless communications applications In this paper we study the application of Euclidean geometry LDPC codes to the VBLAST system We assess system performance using different code parameters and different numbers of antennas via MonteCarlo simulation and show that the combination of Euclidean geometry LDPC codes and VBLAST can significantly improve bit error rate performance We also show that interleaving data is necessary to improve performance of LDPC codes when a higher number of antennas is used in order to mitigate the effect of error propagation The simplicity of the implementation of both encoder and decoder makes Euclidean geometry LDPC codes with VBLAST system attractive and suitable for practical applications

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