面向5G的D2D簇内信息共享机制

doi:10.11959/j.issn.1000-0801.2016019

电信科学 ›› 2016, Vol. 32 ›› Issue (1): 119-125.doi: 10.11959/j.issn.1000-0801.2016019

面向5G的D2D簇内信息共享机制

汪少敏¹,周斌^2,³

¹ 中国电信股份有限公司上海研究院，上海 200122
² 中国科学院上海微系统与信息技术研究所，上海 200050
³ 上海无线通信研究中心，上海 201210

出版日期:2016-01-20 发布日期:2017-06-23
基金资助:
上海市自然科学基金资助项目

5G-oriented information sharing mechanism within D2D clusters

Shaomin WANG¹,Bin ZHOU^2,³

¹ Shanghai Research Institute of China Telecom Co.,Ltd.,Shanghai 200122,China
² Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China
³ Shanghai Research Center for Wireless Communications,Shanghai 201210,China

Online:2016-01-20 Published:2017-06-23
Supported by:
The Natural Science Foundation of Shanghai

摘要/Abstract

摘要：

D2D（device-to-device）通信是5G 网络中的重要技术，有利于提升数据分发业务传输效率；然而，由于D2D通信引入了大量额外信令开销，当前的增强多播方案无法解决高效数据传输与低效信令流程之间的矛盾，降低了整体性能增益。为此，提出了一种基于多维矢量分析的最小化信令开销的D2D簇内信息共享算法，包含集中式与分布式两种实现方式，能通过自适应地选择D2D多播重传发射者和多播重传数据分组，大幅减少簇内重传次数，达到显著降低信令开销和传输时延的目的。

关键词: D2D通信, 信令开销, 数据分发, 多播传输, 5G

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

汪少敏,周斌. 面向5G的D2D簇内信息共享机制[J]. 电信科学, 2016, 32(1): 119-125.

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

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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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面向5G的D2D簇内信息共享机制

5G-oriented information sharing mechanism within D2D clusters

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