TY - GEN
T1 - Cellular systems with multicell processing and conferencing links between mobile stations
AU - Simeones, O.
AU - Somekh, O.
AU - Kramer, G.
AU - Poor, H. Vincent
AU - Shamai, S.
PY - 2008
Y1 - 2008
N2 - In this paper, multi-cell processing for the uplink of a cellular system is studied in the presence of orthogonal channels of fixed capacity between mobile stations in adjacent cells (conferencing). 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 an asymptotically large conferencing capacity. This strategy can be regarded as able to perform 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 multi-cell processing.
AB - In this paper, multi-cell processing for the uplink of a cellular system is studied in the presence of orthogonal channels of fixed capacity between mobile stations in adjacent cells (conferencing). 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 an asymptotically large conferencing capacity. This strategy can be regarded as able to perform 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 multi-cell processing.
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U2 - 10.1109/ITA.2008.4601074
DO - 10.1109/ITA.2008.4601074
M3 - Conference contribution
AN - SCOPUS:52949127354
SN - 1424426707
SN - 9781424426706
T3 - 2008 Information Theory and Applications Workshop - Conference Proceedings, ITA
SP - 361
EP - 365
BT - 2008 Information Theory and Applications Workshop - Conference Proceedings, ITA
T2 - 2008 Information Theory and Applications Workshop - ITA
Y2 - 27 January 2008 through 1 February 2008
ER -