Open Access

Low-Complexity Distributed Multibase Transmission and Scheduling

EURASIP Journal on Advances in Signal Processing20072008:741593

Received: 1 May 2007

Accepted: 25 November 2007

Published: 13 December 2007


This paper addresses the problem of base station coordination and cooperation in wireless networks with multiple base stations. We present a distributed approach to downlink multibase beamforming, which allows for the multiplexing of user terminals, randomly located in a network with base stations. In particular, we detail a low-complexity scheduling algorithm, which can be employed with different objective functions, exemplified here by two approaches: (1) maximizing the sum rate of the network; and (2) maximizing the number of users served, given a statistical constraint on the received rate per user. The optimizations are based on locally available information at each base station. Results show that our approaches yield significant gains, when compared to schemes that do not allow cooperation between cells. These gains are obtained without the extensive signaling overhead required in previously known multicell MIMO processing.


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Authors’ Affiliations

Department of Informatics, University of Oslo, Blindern, Norway
Mobile Communications Department, Eurécom Institute, Sophia Antipolis Cédex, France
UNIK-University Graduate Center, University of Oslo, Instituttveien 252027Kjeller, Norway


© Hilde Skjevling et al. 2008

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.