Abstract
The heterogeneity in cellular networks that comprise multiple base stations’ types imposes new challenges in network planning and deployment. The Radio Resource Management (RRM) techniques, such as dynamic sharing of the available resources and advanced user association strategies determine the overall network capacity and efficiency. This paper evaluates the downlink performance of a two-tier heterogeneous LTE network (consisting of macro and femto tiers) in terms of rate distribution, i.e. the percentage of users that achieve certain rate in the system. The paper specifically addresses the femto tier RRM by randomization of the allocated resources (1) and the user association process by introducing novel proactive offloading scheme (2). System level simulation results show that the proposed proactive offloading scheme in the association phase improves the performance of congested networks by efficiently utilizing the available femto tier resources.
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Acknowledgments
This work was performed within the NATO SfP-984409 project “Optimization and Rational Use of Wireless Communications Bands” (ORCA). The authors would like to thank everyone involved.
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© 2015 Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Ichkov, A., Atanasovski, V., Gavrilovska, L. (2015). Analysis of Two-Tier LTE Network with Randomized Resource Allocation and Proactive Offloading. In: Atanasovski, V., Leon-Garcia, A. (eds) Future Access Enablers for Ubiquitous and Intelligent Infrastructures. FABULOUS 2015. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 159. Springer, Cham. https://doi.org/10.1007/978-3-319-27072-2_8
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DOI: https://doi.org/10.1007/978-3-319-27072-2_8
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