Joint Power Allocation and Relay Selection in Energy Harvesting AF Relay Systems

2013 ◽  
Vol 2 (2) ◽  
pp. 239-242 ◽  
Author(s):  
Imtiaz Ahmed ◽  
Aissa Ikhlef ◽  
Robert Schober ◽  
Ranjan K. Mallik
2016 ◽  
Vol 10 (15) ◽  
pp. 1656-1661 ◽  
Author(s):  
Yangyang Zhang ◽  
Jianhua Ge ◽  
Jinjin Men ◽  
Fengchen Ouyang ◽  
Chensi Zhang

2019 ◽  
Vol 11 (2) ◽  
pp. 47 ◽  
Author(s):  
Xin Song ◽  
Siyang Xu ◽  
Zhigang Xie ◽  
Xiuwei Han

In this paper, we propose a joint power allocation, time switching (TS) factor and relay selection scheme for an energy harvesting two-way relaying communication network (TWRN), where two transceivers exchange information with the help of a wireless-powered relay. By exploiting the TS architecture at the relay node, the relay node needs to use additional time slots for energy transmission, reducing the transmission rate. Thus, we propose a joint resource allocation algorithm to maximize the max-min bidirectional instantaneous information rate. To solve the original non-convex optimization problem, the objective function is decomposed into three sub-problems and solved sequentially. The closed-form solution of the transmit power of two sources and the optimal TS factor can be obtained by the information rate balancing technology and the proposed time allocation scheme, respectively. At last, the optimal relay node can be obtained. Simulation results show that the performance of the proposed algorithm is better than the traditional schemes and power-splitting (PS) scheme.


IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 89670-89686 ◽  
Author(s):  
Mahmoud M. Salim ◽  
Desheng Wang ◽  
Yingzhuang Liu ◽  
Hussein Abd El Atty Elsayed ◽  
Mohamed Abd Elaziz

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