%A Xuan Thang Vu
%A Lei Lei
%A Symeon Chatzinotas
%A Björn Ottersten
%A Vu Trinh Anh
%T Energy Efficient Design for Coded Caching Delivery phase
%X Edge-caching is a promising technique to improve
the network performance in terms of delivery latency and
network congestion during peak-traffic times. Between the two fundamental methods, coded caching has received much attention due to its significant gain over the uncoded counterpart. In this paper, we propose an energy-efficient beamforming design for coded caching delivery phase in wireless networks context. In particular, by exploiting the broadcasting capability of the wireless channels and taking into the cache size, a multi-group
multicast based transmission scheme is employed to deliver multiple coded messages to different subgroups of users simultaneously. Numerical results show a significant energy consumption reduction of the proposed design compared to the conventional scheme in the small and medium cache size regime.
%C HaNoi, Vietnam
%D 2018
%L SisLab3326