研究了基于物理层安全的云无线接入网络(C-RAN)联合频谱和功率分配算法。首先,利用单拍卖理论对C-RAN频谱分配问题进行数学建模,并且提出了最大化安全吞吐量的频谱分配算法;然后,使用Max-Min公平性原则提出了最大化最小用户的能量效率功率分配算法;最后,仿真结果表明所提算法相比其他算法能够获得更优的安全吞吐量,以及较公平的能效比。

According to the physical layer security, the joint spectrum allocation and power allocation algorithm is investigated for C-RAN. Firstly, the spectrum allocation problem is formulated via the one-sided auction theory, and a spectrum allocation algorithm is proposed to maximize the security throughput. Then, a power allocation is proposed to maximize the minimization energy efficiency among different users. Finally, the proposed algorithm not only improves the security throughput, but also guarantees the energy efficiency fairness among different users compared with other algorithms.

TP393;TN926