Experimental Performance Evaluation of Multiuser Zero Forcing Relaying in Indoor Scenarios

Authors

Stefan Berger and Armin Wittneben

Reference

IEEE Vehicular Technology Conference, VTC Spring 2005, May 2005.

[BibTeX, LaTeX, and HTML Reference]

Abstract

We consider a wireless ad hoc network with single antenna nodes under a two-hop relay traffic pattern. The gains of the amplify-and-forward relays are assigned such that the interference between different source/destination links is nulled (multiuser zero forcing relaying). This essentially realizes a distributed spatial multiplexing gain with single antenna nodes. The main contribution of this paper is the performance evaluation of this approach on the basis of multihop/multinode channel measurement at 5.25 GHz. As a specialty of our measurements, all links are measured concurrently. Consequently, in comparison to time-sequential measurements we are much less affected by phase noise and do not require quasi-static propagation environments. The measurements are described in detail and we give comprehensive results on the sum rate supported by multiuser zero forcing relaying in an 'open office' and a 'meeting room' indoor propagation scenario.

Keywords

cooperative relaying, ad-hoc networks, spatial multiplexing, multihop/multinode channel measurements


Download this document:

 

Copyright Notice: © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.