TY - JOUR
T1 - Local base station cooperation via finite-capacity links for the uplink of linear cellular networks
AU - Simeone, Osvaldo
AU - Somekh, Oren
AU - Poor, H. Vincent
AU - Shamai, Shlomo
N1 - Funding Information:
Manuscript received March 04, 2008; revised June 23, 2008. Current version published December 24, 2008. This work was supported by the National Science Foundation under Grants ANI-03-38807, CNS-06-26611, and CNS-06-25637, by a Marie Curie Outgoing International Fellowship within the 6th European Community Framework Program, by the US–Israel Binational Scientific Foundation, and EU Network of Excellence NEWCOM++. The material in this paper was presented in part at the Asilomar Conference on Signals, Systems, and Computers, Monterey, CA, October 2008.
PY - 2009
Y1 - 2009
N2 - Cooperative decoding at the base stations (or access points) of an infrastructure wireless network is currently well recognized as a promising approach for intercell interference mitigation, thus enabling high frequency reuse. Deployment of cooperative multicell decoding depends critically on the tolopology and quality of the available backhaul links connecting the base stations. This work studies a scenario where base stations are connected only if in adjacent cells, and via finite-capacity links. Relying on a linear Wyner-type cellular model with no fading, achievable rates are derived for the two scenarios where base stations are endowed only with the codebooks of local (in-cell) mobile stations, or also with the codebooks used in adjacent cells. Moreover, both uni- and bidirectional backhaul links are considered. The analysis sheds light on the impact of codebook information, decoding delay, and network planning (frequency reuse) on the performance of multicell decoding as enabled by local and finite-capacity backhaul links. Analysis in the high-signal-to-noise ratio (SNR) regime and numerical results validate the main conclusions.
AB - Cooperative decoding at the base stations (or access points) of an infrastructure wireless network is currently well recognized as a promising approach for intercell interference mitigation, thus enabling high frequency reuse. Deployment of cooperative multicell decoding depends critically on the tolopology and quality of the available backhaul links connecting the base stations. This work studies a scenario where base stations are connected only if in adjacent cells, and via finite-capacity links. Relying on a linear Wyner-type cellular model with no fading, achievable rates are derived for the two scenarios where base stations are endowed only with the codebooks of local (in-cell) mobile stations, or also with the codebooks used in adjacent cells. Moreover, both uni- and bidirectional backhaul links are considered. The analysis sheds light on the impact of codebook information, decoding delay, and network planning (frequency reuse) on the performance of multicell decoding as enabled by local and finite-capacity backhaul links. Analysis in the high-signal-to-noise ratio (SNR) regime and numerical results validate the main conclusions.
KW - Cooperative communications
KW - Finite-capacity backhaul
KW - Multicell processing
KW - Wyner cellular model
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U2 - 10.1109/TIT.2008.2008151
DO - 10.1109/TIT.2008.2008151
M3 - Article
AN - SCOPUS:58249139983
SN - 0018-9448
VL - 55
SP - 190
EP - 204
JO - IEEE Transactions on Information Theory
JF - IEEE Transactions on Information Theory
IS - 1
ER -