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Joint Optimization on Inter-cell Interference Management and User Attachment in LTE-A HetNets

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Abstract

To optimize the network utility in 3GPP Long Term Evolution-Advanced (LTE-A) heterogeneous networks (HetNets), it is necessary to jointly consider inter-cell interference mitigation and user attachment. Based on potential game formulation, we optimize almost blank subframe (ABS) and/or cell selection bias (CSB) settings for both macrocells and picocells in a distributed manner. We demonstrate the need of joint ABS and CSB optimization via simulation case studies. Extensive simulations confirm that joint ABS and CSB optimizations can lead to a 20% improvement in spectral efficiency and a 46% improvement in energy efficiency while increasing the fairness of the achieved rates of users.
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Dates and versions

hal-01471134 , version 1 (19-02-2017)

Identifiers

  • HAL Id : hal-01471134 , version 1

Cite

Ye Liu, Chung Shue Chen, Chi Wan Sung. Joint Optimization on Inter-cell Interference Management and User Attachment in LTE-A HetNets. 2015 WiOpt, Workshop on Resource Allocation, Cooperation & Competition in Wireless Networks (RAWNET), May 2015, Mumbai, India. ⟨hal-01471134⟩
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