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Hybrid MU-MIMO and non-orthogonal multiple access design in wireless heterogeneous networks | IEEE Conference Publication | IEEE Xplore

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


Abstract:

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 ...Show More

Abstract:

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.
Date of Conference: 29 August 2016 - 02 September 2016
Date Added to IEEE Xplore: 01 December 2016
ISBN Information:
Electronic ISSN: 2076-1465
Conference Location: Budapest, Hungary

References

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