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ThinkMind // MOBILITY 2013, The Third International Conference on Mobile Services, Resources, and Users // View article mobility_2013_1_20_40051


On the use of Gibbs Sampling for Inter-Cell Interference Mitigation under Partial Frequency Reuse Schemes

Authors:
Katerina Koutlia
Martin Žiak
Jordi Pérez-Romero
Ramon Agustí

Keywords: Dynamic Frequency Allocation; Partial Frequency Reuse; Gibbs Sampler

Abstract:
Fourth Generation (4G) cellular networks present a number of improvements in the overall network performance. However, and despite the advanced technologies that are being employed, Inter Cell Interference (ICI) remains a constraining factor. ICI Coordination techniques target the minimization of ICI and have gained ground in the literature. The introduction of dynamicity in these schemes results in even better bandwidth utilization and enhances the overall performance. In this work, we propose a distributed algorithm that performs dynamic channel allocation to mitigate the ICI in cellular scenarios applying Partial Frequency Reuse (PFR). In particular, the algorithm is based on a Gibbs Sampler mechanism that allows achieving an optimized performance. Simulation results have shown that the proposed solution reduces the network interference up to 13 dB with respect to classical PFR. In addition, benefits have also been observed in the user capacity, where our scheme achieves improvements of up to 43% in terms of average user capacity and up to 17% for the users located at the cell edge.

Pages: 10 to 15

Copyright: Copyright (c) IARIA, 2013

Publication date: November 17, 2013

Published in: conference

ISSN: 2308-3468

ISBN: 978-1-61208-313-1

Location: Lisbon, Portugal

Dates: from November 17, 2013 to November 21, 2013

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