Hybrid Mu-Mimo And Non-Orthogonal Multiple Access Design In Wireless Heterogeneous Networks
2016 24th European Signal Processing Conference (EUSIPCO)(2016)
摘要
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.
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关键词
hybrid MU-MIMO,nonorthogonal multiple access design,wireless heterogeneous network,data traffic growth,mobile application,next-generation wireless network,5G network,multiuser diversity gain,NOMA composite signal,resource scheduling optimization problem,brute-force search algorithm
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