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Article Dans Une Revue IEEE Transactions on Wireless Communications Année : 2017

Iterative multi-level soft frequency reuse with load balancing for heterogeneous LTE-A systems

Résumé

This paper deals with the planning of two-layer long-term evolution-advanced cellular systems, taking both the co-tier and cross-tier interference into account. In particular, we propose the novel multi-level soft frequency reuse (MSFR) scheme, where the users in three different regions of a macro/micro cell adopt distinct frequency segments and different transmission power levels. The optimization of power control parameters and cell association with MSFR results in a non-convex problem. We present the iterative-MSFR (I-MSFR) scheme, where the main optimization problem is divided into two sub-problems that can be subsequently solved by means of classical optimization methods. Finally, we propose two simplified schemes that achieve a comparable performance as I-MSFR in terms of utility, cell capacity, and outage conditions. I-MSFR and the simplified schemes have shown better performance than other schemes in the literature
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Dates et versions

hal-01646347 , version 1 (23-11-2017)

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Giovanni Giambene, van Anh Le, Thomas Bourgeau, Hakima Chaouchi. Iterative multi-level soft frequency reuse with load balancing for heterogeneous LTE-A systems. IEEE Transactions on Wireless Communications, 2017, 16 (2), pp.924 - 938. ⟨10.1109/TWC.2016.2634536⟩. ⟨hal-01646347⟩
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