Abstract:
Cell Range Expansion (CRE) is a promising solution to offload macrocells' traffic and improve the radio capacity in Heterogeneous Network (HetNet). On the other hand, enh...Show MoreMetadata
Abstract:
Cell Range Expansion (CRE) is a promising solution to offload macrocells' traffic and improve the radio capacity in Heterogeneous Network (HetNet). On the other hand, enhanced Inter-Cell Interference Coordination (eICIC) techniques are introduced in HetNets to mitigate the severe interference caused between the small cells and the macrocell. In this paper, we present a novel application of the CRE coupled with a new time and frequency domain based eICIC. This approach called FT-CRE offers an efficient radio resource allocation scheme which takes into account the number of femtocells inside the macrocell, the femtocells' loads and the macrocell load. The performance of the proposed FT-CRE scheme is evaluated through simulations. The results show that the achieved throughput of the victim macro-users served by femtocells which apply the CRE is increased by 6 times as compared to a common application of CRE technique based on time domain multiplexing eICIC only. They also show that the outage probability of these victim macro-users is significantly decreased.
Date of Conference: 14-17 September 2014
Date Added to IEEE Xplore: 04 December 2014
Electronic ISBN:978-1-4799-4449-1
Print ISSN: 1090-3038