Joint Power and Splitting Factor Allocation Algorithms for Energy Harvesting Enabled Hybrid Cellular Networks

Author(s):  
Jianjun Yang ◽  
Zhiren Yao ◽  
Jie Hu ◽  
Longjiang Li ◽  
Yuming Mao
2020 ◽  
Vol 17 (12) ◽  
pp. 139-155
Author(s):  
Tong Wang ◽  
Xiang Yang ◽  
Feng Deng ◽  
Lin Gao ◽  
Yufei Jiang ◽  
...  

Author(s):  
Rachad Atat ◽  
Hao Chen ◽  
Lingjia Liu ◽  
Jonathan Ashdown ◽  
Michael Medley ◽  
...  

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Weiheng Jiang ◽  
Wenjiang Feng

The secure communication that multiple OFDMA-based cell-edge mobile stations (MS) can only transmit confidential messages to base station (BS) through an untrusted intermediate relay (UR) is discussed. Specifically, with the destination-based jamming (DBJ) scheme and fixed MS transmission power assumption, our focus is on the joint BS and US power allocation to maximize system sum secrecy rate. We first analyze the challenges in solving this problem. The result indicates that our nonconvex joint power allocation is equivalent to a joint MS access control and power allocation. Then, by problem relaxation and the alternating optimization approach, two suboptimal joint MS access control and power allocation algorithms are proposed. These algorithms alternatively solve the subproblem of joint BS and UR power allocation and the subproblem of MS selection until system sum secrecy rate is nonincreasing. In addition, the convergence and computational complexity of the proposed algorithms are analyzed. Finally, simulations results are presented to demonstrate the performance of our proposed algorithms.


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