Linear Precoder Design for MIMO-ISI Broadcasting Channels under Channel Shortening Detection

Sha Hu, Xiang Gao, Fredrik Rusek

Research output: Contribution to journalLetterpeer-review

Abstract

We consider optimal precoder design for multi-user multiple-input multiple-output (MIMO) broadcasting channels in single-carrier (SC) systems. Instead of linear detection, we assume that advanced non-linear channel shortening (CS) detectors are utilized at the receivers. Such a scenario is challenging for precoder design as the uplink-downlink duality is inapplicable. The target of our linear precoder design is to maximize the sum of the achievable information rate (sum-AIR), with AIR of each user being explicitly derived. We analyze such a precoder design in general, and provide an efficient per-user based optimization algorithm for the design of block-diagonalization precoder.
Original languageEnglish
Pages (from-to)1207-1211
Number of pages5
JournalIEEE Signal Processing Letters
Volume23
Issue number9
Early online date2016 Jul 16
DOIs
Publication statusPublished - 2016 Sept

Subject classification (UKÄ)

  • Signal Processing

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