Hybrid MU-MIMO and non-orthogonal multiple access design in wireless heterogeneous networks

In order to meet the ever increasing mobile application proliferation and data traffic growth, next-generation wireless networks or 5G networks are under a revolutionary technology innovation path towards these goals. In this paper, we introduce a hybrid MU-MIMO and NOMA design scheme in wireless he...

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Bibliographic Details
Published in2016 24th European Signal Processing Conference (EUSIPCO) pp. 833 - 837
Main Authors Yiran Xu, Haijian Sun, Rose Qingyang Hu
Format Conference Proceeding
LanguageEnglish
Published EURASIP 01.08.2016
Subjects
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Heterogeneous networks
Interference
NOMA
Precoding
Throughput
Wireless communication
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Summary:In order to meet the ever increasing mobile application proliferation and data traffic growth, next-generation wireless networks or 5G networks are under a revolutionary technology innovation path towards these goals. In this paper, we introduce a hybrid MU-MIMO and NOMA design scheme in wireless heterogeneous networks to improve the system throughput and also to increase multi-user diversity gains by exploiting the heterogeneous nature of the supporting wireless networks. The best user cluster is formed in a NOMA group and then a precoding based MU-MIMO scheme is applied to NOMA composite signals. The problem is further formulated as a resource scheduling optimization problem to achieve the proportional fairness. Aiming to ensure the global optimality, a brute-force search algorithm is used to solve the problem. Simulations results show that the proposed scheme can improve the overall system performance notably.
ISSN:2076-1465
DOI:10.1109/EUSIPCO.2016.7760365