Throughput of cellular systems with conferencing mobiles and cooperative base stations

Document Type

Article

Publication Date

8-12-2008

Abstract

This paper considers an enhancement to multicell processing for the uplink of a cellular system, whereby the mobile stations are allowed to exchange messages on orthogonal channels of fixed capacity (conferencing). Both conferencing among mobile stations in different cells and in the same cell (inter- and intracell conferencing, resp.) are studied. For both cases, it is shown that a rate-splitting transmission strategy, where part of the message is exchanged on the conferencing channels and then transmitted cooperatively to the base stations, is capacity achieving for sufficiently large conferencing capacity. In case of intercell conferencing, this strategy performs convolutional pre-equalization of the signal encoding the common messages in the spatial domain, where the number of taps of the finite-impulse response equalizer depends on the number of conferencing rounds. Analysis in the low signal-to-noise ratio regime and numerical results validate the advantages of conferencing as a complementary technology to multicell processing. Copyright © 2008 O. Simeone et al.

Identifier

48849114014 (Scopus)

Publication Title

Eurasip Journal on Wireless Communications and Networking

External Full Text Location

https://doi.org/10.1155/2008/652325

e-ISSN

16871499

ISSN

16871472

Volume

2008

Grant

CNS-06-25637

Fund Ref

National Science Foundation

This document is currently not available here.

Share

COinS