Local Base Station Cooperation Via Finite-Capacity Links for the Uplink of Linear Cellular Networks

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 to...

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Bibliographic Details
Published in:IEEE transactions on information theory 2009-01, Vol.55 (1), p.190-204
Main Authors: Simeone, O., Somekh, O., Poor, H.V., Shamai, S.
Format: Article
Language:English
Subjects:
Applied sciences
Base stations
Cellular
Codes
Coding, codes
Cooperative communications
Decoding
Equipments and installations
Exact sciences and technology
Fading
Femtocell networks
finite-capacity backhaul
Frequency
Information
Information analysis
Information theory
Information, signal and communications theory
Interference
Joining processes
Land mobile radio cellular systems
Links
Mobile radiocommunication systems
multicell processing
Networks
Radiocommunications
Signal and communications theory
Signal to noise ratio
Stations
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Wireless communication
Wireless networks
Wyner cellular model
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Summary: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.
ISSN:0018-9448
1557-9654
DOI:10.1109/TIT.2008.2008151