基于补偿因子的D2D通信自适应联合功率控制算法

doi:10.3969/j.issn.0255-8297.2019.01.001

Abstract

Abstract:

An adaptive joint power control algorithm is proposed to improve the path loss compensation factor and the performance of power control in the cellular system incorporating device to device(D2D)communications. The added amount of the path loss compensation factor could be calculated according to the distance between D2D users to base station and cellular users, then the path loss compensation factor matrix of D2D users and cellular users could be used to improve the performance of power control. In order to improve the co-channel interference furtherly, a joint closed loop power control mode is adopted for D2D users and cellular users. Compared with traditional power control algorithms, simulation results show that the signal to interference plus noise ratio (SINR) of the system could be improved better by the proposed algorithm, and the number of users of the proposed algorithm whose throughput is more than 1000 kbit/s is 1.7 times of the traditional power control algorithm.

Key words: device to device (D2D), cellular system, cochannel interference, power control, path loss compensation factor

CLC Number:

TN929.5

ZHAI Xu-ping, GONG Lei, ZHANG Nan. Adaptive Joint Power Control Algorithm Based on Compensation Factor for Device-to-Device Communication[J]. Journal of Applied Sciences, 2019, 37(1): 1-11.

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Adaptive Joint Power Control Algorithm Based on Compensation Factor for Device-to-Device Communication

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