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Iterative MMSE Detection for MIMO/BLAST DS-CDMA Systems in Frequency Selective Fading Channels – Achieving High Performance in Fully Loaded Systems

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E-business and Telecommunication Networks (ICETE 2005)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 3))

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Abstract

A MMSE (Minimum Mean Square Error) DS-CDMA (Direct Sequence-Code Division Multiple Access) receiver coupled with a low-complexity iterative interference suppression algorithm was devised for a MIMO/BLAST (Multiple Input, Multiple Output / Bell Laboratories Layered Space Time) system in order to improve system performance, considering frequency selective fading channels. The scheme is compared against the simple MMSE receiver, for both QPSK and 16QAM modulations, under SISO (Single Input, Single Output) and MIMO systems, the latter with 2Tx by 2Rx and 4Tx by 4Rx (MIMO order 2 and 4 respectively) antennas. To assess its performance in an existing system, the uncoded UMTS HSDPA (High Speed Downlink Packet Access) standard was considered.

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Joaquim Filipe Helder Coelhas Monica Saramago

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© 2007 Springer-Verlag Berlin Heidelberg

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Silva, J.C., Souto, N., Cercas, F., Dinis, R. (2007). Iterative MMSE Detection for MIMO/BLAST DS-CDMA Systems in Frequency Selective Fading Channels – Achieving High Performance in Fully Loaded Systems. In: Filipe, J., Coelhas, H., Saramago, M. (eds) E-business and Telecommunication Networks. ICETE 2005. Communications in Computer and Information Science, vol 3. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75993-5_15

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  • DOI: https://doi.org/10.1007/978-3-540-75993-5_15

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-75992-8

  • Online ISBN: 978-3-540-75993-5

  • eBook Packages: Computer ScienceComputer Science (R0)

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