Secrecy sum-rates for multi-user MIMO linear precoding

Giovanni Geraci, Jinhong Yuan, Adeel Razi, Iain B. Collings

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11 Citations (Scopus)


We study the multi-user MIMO channel with confidential messages, in which a multi-antenna transmitter has secret communication with an arbitrary number of receivers. We consider the worst case scenario where each user regards the others as cooperating eavesdroppers. We study the effectiveness of simple transmission schemes for maintaining confidentiality among users. We first derive the secrecy sum-rates achievable with generic linear precoding, then we focus on regularized channel inversion (RCI) precoding. For the latter, we discuss the choice of the optimal regularization parameter, finding a region where it lies, and we propose a practical approximation for it.

Original languageEnglish
Title of host publicationISWCS'11 - 2011 8th International Symposium on Wireless Communication Systems, Proceedings
Number of pages5
Publication statusPublished - 2011
Externally publishedYes
EventInternational Symposium on Wireless Communication Systems 2011 - Aachen Germany, Aachen, Germany
Duration: 6 Nov 20119 Nov 2011
Conference number: 8th


ConferenceInternational Symposium on Wireless Communication Systems 2011
Abbreviated titleISWCS 2011
Internet address

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