面向5G的D2D簇内信息共享机制

doi:10.11959/j.issn.1000-0801.2016019

Abstract

Abstract:

Device-to-Device（D2D）communication is an important technology in 5G network.It helps to improve the transmission efficiency of data dissemination services.However,due to the extra signaling overhead caused by D2D communications,currently most of enhanced-multicast solutions cannot solve the contradiction between high-efficient data transmission and low-efficient signaling procedure,so as to reduce the overall performance gain.An intra-cluster D2D information sharing algorithm based on matrix analysis which includes centralized and distributed modes was proposed.The proposed algorithm could significantly reduce D2D retransmission times in clusters by adaptively selecting the optimal transmitters and data packets for D2D multicast retransmission,achieving the aim of reducing signaling overhead and transmission delay.

Key words: D2D communication, signaling overhead, data dissemination, multicast transmission, 5G

Shaomin WANG,Bin ZHOU. 5G-oriented information sharing mechanism within D2D clusters[J]. Telecommunications Science, 2016, 32(1): 119-125.

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References 9

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	误块率		簇大小
	误块率	3	6	9	12
30%	方案1	1.531 0	4.996 1	8.480 1	11.763 1
	方案2	1.018 2	1.333 4	1.583 4	1.786 1
	方案3	1.018 2	1.332 3	1.582 7	1.786 1
20%	方案1	1.080 5	4.029 1	7.488 9	10.962 6
	方案2	0.784 7	1.091 8	1.191 0	1.341 4
	方案3	0.783 5	1.089 4	1.189 3	1.339 6
10%	方案1	0.572 8	2.459 0	5.130 4	8.237 4
	方案2	0.476 8	0.962 5	1.006 2	1.011 2
	方案3	0.474 8	0.961 4	1.005 3	1.010 4
5%	方案1	0.293 2	1.356 2	3.035 6	5.190 7
	方案2	0.266 8	0.783 7	0.975 3	0.999 1
	方案3	0.264 9	0.782 0	0.975 0	0.998 9

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5G-oriented information sharing mechanism within D2D clusters

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