Ergodic sum-rate analysis for multicast network with wireless energy harvesting relay

The Journal of Engineering

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[1] College of Physics and Electronic Engineering, Northwest Normal University, No. 967 Anning East Road, Lanzhou, People's Republic of China;School of Information and Communications, National University of Defense Technology, Changsha, People's Republic of China;State Key Laboratory of Integrated Service Networks, Xidian University, No. 2 South Taibai Road, Xi'an, People's Republic of China;

关键词: network coding;    relay networks (telecommunication);    decode and forward communication;    telecommunication power management;    energy harvesting;    protocols;    ergodic sum-rate analysis;    wireless energy harvesting relay;    wireless energy harvesting multicast network;    source nodes;    respective destination nodes;    WEH relay node;    power splitting;    analogue network coding;    time slot;    amplified signal;    harvested energy;    maximal ergodic sum-rate;    conventional unicast four time slots WEH scheme;   

DOI  :  10.1049/joe.2018.5073

来源: publisher

【 摘 要 】

In the letter, a wireless energy harvesting (WEH) multicast network is proposed. Two source nodes communicate with their respective destination nodes via a WEH relay node. Adopting the power splitting relaying (PSR) protocol and analogue network coding (ANC), the relay node simultaneously harvests the energy and receives the information from the signals transmitted by the two source nodes in the first time slot $\lpar T/2\rpar $(T/2), and retransmits the amplified signal to the destination nodes in the second time slot $\lpar T/2\rpar $(T/2) using all harvested energy. The analytical expressions of the ergodic sum-rate of the proposed network are derived. Numerical results corroborate the derived expressions and show that the proposed scheme nearly doubles the maximal ergodic sum-rate in comparison with the conventional unicast four time slots WEH scheme.

【 授权许可】

CC BY