Minimum sum-MSE design for distributed multi-relay aided multi-user MIMO network

Young Min Cho, Seunghun Jang, Dong Ku Kim, Janghoon Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper proposes an determination algorithm of amplify-and-forward (AF) relay precoders and user receivers to minimize sum mean-squared-error (SMSE) for multi-relay aided multi-user (MRAMU) multiple-input multiple-output (MIMO) network. This algorithm is advantageous in that it can be executed with only local channel state information (CSI) at relays, meaning that a relay is aware of 2nd hop CSI of only the channel from itself to all users. Block diagonalization (BD) precoder at base station (BS) can make it unnecessary that 2nd hop CSI should be shared among relays. Given fixed BD precoder at BS, relay precoders and user receivers are designed as solution of optimization problem. We attempt to achieve suboptimal structures of relay precoders and user receivers based on sequential iteration and Karush-Kuhn-Tucker (KKT) theorem. Simulation results verify that the proposed algorithm provides the reduced SMSE compared to conventional simple AF (SAF) and minimum mean-squared-error (MMSE) relaying.

Original languageEnglish
Title of host publication54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011
DOIs
Publication statusPublished - 2011 Oct 13
Event54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011 - Seoul, Korea, Republic of
Duration: 2011 Aug 72011 Aug 10

Other

Other54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011
CountryKorea, Republic of
CitySeoul
Period11/8/711/8/10

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Minimum sum-MSE design for distributed multi-relay aided multi-user MIMO network'. Together they form a unique fingerprint.

  • Cite this

    Cho, Y. M., Jang, S., Kim, D. K., & Yang, J. (2011). Minimum sum-MSE design for distributed multi-relay aided multi-user MIMO network. In 54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011 [6026614] https://doi.org/10.1109/MWSCAS.2011.6026614