TY - JOUR
T1 - Interference Mitigation and Power Allocation Scheme for Downlink MIMO-NOMA HetNet
AU - Nasser, Ahmed
AU - Muta, Osamu
AU - Elsabrouty, Maha
AU - Gacanin, Haris
N1 - Funding Information:
Manuscript received January 14, 2019; revised March 30, 2019; accepted April 30, 2019. Date of publication May 22, 2019; date of current version July 16, 2019. This work was financially supported and was done as a part of the research project JSPS KAKENHI under Grant JP17K06427. Also, this work was supported in part by Center for Japan-Egypt Cooperation in Science and Technology, in part by Kyushu University, in part by NTRA (Super-HETs, Empowering 5G HetNets for better Performance), and in part by the Egyptian Ministry of Higher Education (MOHE). The review of this paper was coordinated by Dr. C. Yuen. (Corresponding author: Ahmed Nasser.) A. Nasser is with the Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 812-0053, Japan (e-mail: ahmed. nasser@mobcom.ait.kyushu-u.ac.jp).
PY - 2019/7
Y1 - 2019/7
N2 - In this paper, a novel interference mitigation and power allocation (PA) scheme is investigated for downlink non-orthogonal multiple access (NOMA) with multiple input multiple output (MIMO) technology in heterogeneous networks (HetNets). The proposed scheme, named PA based interference alignment and coordinated beamforming (PA-IA-CB), consists of two stages. The first stage applies two steps of IA-CB; one step for canceling the inter-cluster and the co-tier interference among small cells, whereas the other step deals with the inter-cluster interference within the macro cell. In the second stage, the cross-tier interference is proposed to be managed by properly handling the allocated power to the macro base station (MBS) and the small base stations (SBSs). The PA problem is modeled as a non-cooperative game between the MBS and the SBS with the aim of increasing the system sum rate. Simulation results verify the efficiency of the proposed technique in terms of total system sum rate and outage probability compared to the conventional schemes.
AB - In this paper, a novel interference mitigation and power allocation (PA) scheme is investigated for downlink non-orthogonal multiple access (NOMA) with multiple input multiple output (MIMO) technology in heterogeneous networks (HetNets). The proposed scheme, named PA based interference alignment and coordinated beamforming (PA-IA-CB), consists of two stages. The first stage applies two steps of IA-CB; one step for canceling the inter-cluster and the co-tier interference among small cells, whereas the other step deals with the inter-cluster interference within the macro cell. In the second stage, the cross-tier interference is proposed to be managed by properly handling the allocated power to the macro base station (MBS) and the small base stations (SBSs). The PA problem is modeled as a non-cooperative game between the MBS and the SBS with the aim of increasing the system sum rate. Simulation results verify the efficiency of the proposed technique in terms of total system sum rate and outage probability compared to the conventional schemes.
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U2 - 10.1109/TVT.2019.2918336
DO - 10.1109/TVT.2019.2918336
M3 - Article
AN - SCOPUS:85069465520
SN - 0018-9545
VL - 68
SP - 6805
EP - 6816
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 7
M1 - 8719970
ER -