5G中基于系统中断概率的D2D资源分配算法

doi:10.13229/j.cnki.jdxbgxb20190935

Abstract

Abstract:

In order to solve the problem of energy consumption control and system outage of D2D resource allocation algorithm， a dynamic exhaustive D2D resource allocation algorithm with simulated annealing is proposed. The algorithm uses a dynamic interval exhaustive search algorithm to initially determine the user transmit power， and creates a two-dimensional multiplex table containing user QoS information. Then the algorithm combines the QoS of the cellular user with the D2D user to determine the multiplexing combination， adds an adjustment power module in the power dimension and introduces a simulated annealing algorithm in the combined dimension to reduce the outage probability. The simulation results show that， compared with the traditional algorithms， the dynamic exhaustive resource allocation algorithm with simulated annealing decreases the average power by 78.3% during the power allocation phase， increases the probability of connectivity in the channel allocation phase by 10.2% on average， and reduces the calculation time by 10.1% on average.

Key words: communication and information system, device to device, system outage probability, dynamic exhaustive search, simulated annealing

CLC Number:

TN929.5

Yi-jun WANG,You-xu ZHANG,Rui-xin MIAO,Jia-min DOU. D2D resource allocation algorithm based on system outage probability in 5G[J].Journal of Jilin University(Engineering and Technology Edition), 2021, 51(1): 331-339.

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	C₁	C₂	…	C_N
D₁	W(1,1)	W(1,2)	…	W(1,N)
D₂	W(2,1)	W(2,2)	…	W(2,N)
?	?	?		?
D_M	W(M,1)	W(M,2)	…	W(M,N)

	D₁	D₂
C₁	H₁	N₀
C₂	H₃	H₂

	D₁	D₂
C₁	H₁	N₀
C₂	H₄	H₂

参数	数值
小区半径R/m	100<R<500
D2D用户对距离R_d/m	100<R_d<500
系统带宽B/MHz	50
载频f_c/GHz	5
蜂窝用户个数	10,20
D2D用户对数	10,30
噪声功率N/(dB·m)	-114
蜂窝用户最大发送功率/(dB·m)	24
蜂窝用户最小信噪比/(dB·m)	5
蜂窝与基站间的损耗蜂窝到D2D接收端的损耗不同D2D之间的路径损耗 D2D发射端到基站的损耗	22log10(d)+32.79 10<d<350 40log10(d/350)+88.76 350<d<500
退火周期	100
动态系数J_d	5,12,100
调整范围P/mW	1
调整精度G	10

D2D resource allocation algorithm based on system outage probability in 5G

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