Interference coordination in wireless networks: A flow-level perspective

Richard Combes 1 Zwi Altman 2 Eitan Altman 3
1 KTH - Royal Institute of Technology [Stockholm, Sweden]
2 Issy-les-Moulineaux - France Telecom Division R&D
3 MAESTRO - Models for the performance analysis and the control of networks
CRISAM - Inria Sophia Antipolis - Méditerranée
Abstract : In dense wireless networks, inter-cell interference highly limits the capacity and quality of service perceived by users. Previous work has shown that approaches based on frequency reuse provide important capacity gains. We model a wireless network with Inter-Cell Interference Coordination (ICIC) at the flow level where users arrive and depart dy- namically, in order to optimize quality of service indicators perceivable by users such as file transfer time for elastic traffic. We propose an algorithm to tune the parameters of ICIC schemes automatically based on measurements. The convergence of the algorithm to a local optimum is proven, and a heuristic to improve its convergence speed is given. Numerical experiments show that the distance between local optima and the global optimum is very small, and that the algorithm is fast enough to track changes in traffic on the time scale of hours. The proposed algorithm can be implemented in a distributed way with very small signaling load.
Keywords : numerical analysis quality of service radio networks radiofrequency interference telecommunication traffic ICIC scheme convergence speed elastic traffic file transfer time flow-level perspective global optimum intercell interference coordination interference coordination local optima small signaling load Convergence Fading Interference Load modeling Niobium Optimization Load Balancing OFDMA Queuing Theory Self Optimization Self configuration Self-Organizing Networks Stability Stochastic Approximation Traffic Engineering Wireless Networks
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Communication dans un congrès
IEEE INFOCOM - 32nd International Conference on Computer Communications, Apr 2013, Turin, Italy. pp.2841-2849, 2013, 2013 Proceedings IEEE INFOCOM. <10.1109/INFCOM.2013.6567094>
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Richard Combes, Zwi Altman, Eitan Altman. Interference coordination in wireless networks: A flow-level perspective. IEEE INFOCOM - 32nd International Conference on Computer Communications, Apr 2013, Turin, Italy. pp.2841-2849, 2013, 2013 Proceedings IEEE INFOCOM. <10.1109/INFCOM.2013.6567094>. <hal-00913239>

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