Abstract
In order to solve the data surge brought by largescale increasing of mobile de-vices, Massive MIMO ultra dense networking can greatly improve the system spectral efficiency and energy efficiency. It plays an important role in coping with the exponential growth of the business, but also brought big problems and challenges. For heterogeneous ultra dense networks, both macro and femto users are facing with both the cross-layer interference and co-layer in-terference. The precoding technology studied in this paper resolves the cross-layer interference and co-layer interference for macro users and femto users, and lays a theoretical foundation for the deployment of heterogeneous and ultra dense networks.
Highlights
The development of wireless communication provides great convenience to people’s life
In order to solve the data surge brought by largescale increasing of mobile devices, Massive MIMO ultra dense networking can greatly improve the system spectral efficiency and energy efficiency
The precoding technology studied in this paper resolves the cross-layer interference and co-layer interference for macro users and femto users, and lays a theoretical foundation for the deployment of heterogeneous and ultra dense networks
Summary
The development of wireless communication provides great convenience to people’s life. With the commercial use of 4 G mobile communication system, the 5 G mobile communication receives more and more attention in academia and industry. The research shows that more than 50% of the voice services and 70% of the data services will be mainly from the indoor terminal in the future. UDN (Ultra Dense Network) plays an important role in the future 5 G network, which will become one of the key technologies of 5 G and become one of the global hot topics [1]. The basic idea of UDN is to enhance the spectral efficiency, the energy efficiency
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