Spectrum Allocation and Interference Alignment for Fractional Frequency Reuse Based HetNets

Jianfeng Ding; Lingge Jiang; Chen He

10th EAI International Conference on Communications and Networking in China

Research Article

Spectrum Allocation and Interference Alignment for Fractional Frequency Reuse Based HetNets

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.4108/eai.15-8-2015.2260549,
    author={Jianfeng Ding and Lingge Jiang and Chen He},
    title={Spectrum Allocation and Interference Alignment for Fractional Frequency Reuse Based HetNets},
    proceedings={10th EAI International Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2015},
    month={9},
    keywords={interference alignment spectrum management heterogeneous networks multi-cell downlink networks fractional frequency reuse},
    doi={10.4108/eai.15-8-2015.2260549}
}

Jianfeng Ding
Lingge Jiang
Chen He
Year: 2015
Spectrum Allocation and Interference Alignment for Fractional Frequency Reuse Based HetNets
CHINACOM
IEEE
DOI: 10.4108/eai.15-8-2015.2260549

Jianfeng Ding¹^,*, Lingge Jiang¹, Chen He¹

1: Shanghai Jiao Tong University

*Contact email: dingtim@sjtu.edu.cn

Abstract

In this paper, we focus on interference cancellation in

multi-cell heterogeneous networks, where macrocells and

femtocells coexist in the system and therefore incur

significant interference.We propose an interference

alignment(IA) scheme to support multi-macrocell

heterogeneous networks(HetNets) with fractional frequency

reuse(FFR). In order to let all the femtocells transmit

simultaneously, we also propose a prioritized spectrum

allocation scheme. The simulation results show that the

proposed IA scheme can eliminate the interference for 3

macrocell, 3 femtocell system completely. Furthermore,

combining the proposed IA scheme with the proposed spectrum

allocation scheme will allow all the femtocells to transmit

together and significantly increase the sum rate of HetNets.

Keywords: interference alignment spectrum management heterogeneous networks multi-cell downlink networks fractional frequency reuse

Published: 2015-09-21
Publisher: IEEE

: http://dx.doi.org/10.4108/eai.15-8-2015.2260549