5G移动网络中终端直连方式下用户发送功率自适应优化方法

doi:10.11959/j.issn.1000-0801.2017028

Abstract

Abstract:

As a strong supplementary technique to the traditional mobile communication networks,the concept of device to device was introduced into the future 5G mobile communication networks.To solve the problems of base station-free transmission manner and the complex interference environment induced by the non-coordinated user data transmission,an adaptive transmission power allocation algorithm based on game theory and fuzzy logic was proposed,to utilize the system power and frequency in a more efficient way while minimizing the interference to other users.Through the simulation results,the proposed algorithm outperformed the conventional equal power allocation and distributed water-filling algorithms in the aspect of user received data rates.

Key words: 5G mobile network, game theory, uzzy logic, power allocation

CLC Number:

TN915

Yupeng WANG,Xin DAI,Kaili LI. Adaptive transmission power allocation algorithm in device to device manner of 5G mobile networks[J]. Telecommunications Science, 2017, 33(2): 73-78.

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References 17

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功率变化	功率传输效率变化	代价系数
增加	增加	降低
增加	不变	增加
增加	降低	增加
不变	增加	不变
不变	不变	增加
不变	降低	增加
降低	增加	增加
降低	不变	增加
降低	降低	降低

参数	数值
载频/GHz	2
带宽/MHz	10
用户发送功率/dBm	23
D2D用户数/个	30
用户位置分布	随机均匀分布
用户数据模型	全缓冲模型
信道模型	SCM信道模型（城市高扩展情景1）
天线增益	0 dBi，全向天线
信道估计错误	无

	平均速率/(kbit·s^-1)	相对于平均功率分配增益	5%速率/(kbit·s^-1)	相对于平均功率分配增益
平均功率分配	350.88	—	60.53	—
α=1	557.84	58.9%	27.59	-54.5%
α=1(分布式注水)	430.45	22.7%	24.38	-59.8%
α=0.5	435.23	24.0%	70.85	17.0%
α=0.1	410.52	17.0%	74.37	22.9%

Adaptive transmission power allocation algorithm in device to device manner of 5G mobile networks

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