Network Coding-Based Interference Management Scheme in D2D Communications

doi:10.3969/j.issn.1673-5188.2017.02.007

ZTE Communications ›› 2017, Vol. 15 ›› Issue (2): 48-54.DOI: 10.3969/j.issn.1673-5188.2017.02.007

收稿日期:2015-12-03 出版日期:2017-04-25 发布日期:2019-12-24

Network Coding-Based Interference Management Scheme in D2D Communications

WANG Shuang, HOU Ronghui

Xidian University, Xi’an 710071, China

Received:2015-12-03 Online:2017-04-25 Published:2019-12-24
About author:WANG Shuang (wangshuangv086@163.com) received the B.Eng. and M.Eng. degrees in communication engineering from Xidian University in 2013 and 2016, respectively. Her research interests include D2D communication and wireless networks. Since 2016, she has been with State Grid Corporation of China, where she is currently an engineer.|HOU Ronghui (rhhou@xidian.edu.cn) received the B.Eng., M.Eng., and Ph.D. degrees in communication engineering from Northwestern Polytechnical University, China in 2002, 2005, and 2007, respectively. She was a post-doctoral fellow with the Department of Electrical and Electronic Engineering, The University of Hong Kong, China, from 2007 to 2009. Since 2009, she has been with Xidian University, China, where she is currently a professor with the Department of Telecommunication Engineering. Her research interests include network quality of service issues, routing algorithm design, and wireless networks.
Supported by:
This work is supported in part by the National Natural Science Foundation of China, and ZTE Industry-Academia-Research Cooperation Funds(61571351);This work is supported in part by the National Natural Science Foundation of China, and ZTE Industry-Academia-Research Cooperation Funds(61231008);ZTE Industry-Academia-Research Cooperation Funds

摘要/Abstract

Abstract:

In this paper, we propose an interference management scheme for device-to-device (D2D) communications in cellular networks. Considering the underlay D2D communications, the signal quality of cellular users would be affected by D2D users. To solve this problem, we explore the application of network coding and relay-assistance to mitigate interference. In the proposed scheme, helper nodes overhear the signal from cellular users, encode the received packets, and send the encoded packets to the base station. We design the helper node selection scheme and the transmission policy of helper nodes. The performance of the proposed scheme for different positions of the cellular user and D2D users is then evaluated. The results suggest that the cellular transmission scheme should be adjusted dynamically when underlay D2D communications are active. Compared with the existing solutions, the proposed scheme can effectively increase system throughput.

Key words: D2D, interference management, network coding, relay

. [J]. ZTE Communications, 2017, 15(2): 48-54.

WANG Shuang, HOU Ronghui. Network Coding-Based Interference Management Scheme in D2D Communications[J]. ZTE Communications, 2017, 15(2): 48-54.

图/表 12

Figure 1. A cellular user communicates with BS via a helper node.

Figure 2. D2D users communicate by reusing the uplink resource of cellular users in cellular network.

Figure 3. Network coding technology.

Figure 4. Packet error rate of the link related to a helper.

Figure 5. Link condition of multiple helpers.

Table 1 Simulation parameters

Simulation parameters	Value
Side length of cellular coverage	3000 m
Side length of subarea	200 m
BS coordinate	(1500, 1500)
Cellular transmit power	15 dBm
D2D transmit power	10 dBm
Target number of packets $g$	200
Pass-loss exponent $α$	2
Gaussian noise	-100 dBm

Table 1 Simulation parameters

Simulation parameters	Value
Side length of cellular coverage	3000 m
Side length of subarea	200 m
BS coordinate	(1500, 1500)
Cellular transmit power	15 dBm
D2D transmit power	10 dBm
Target number of packets $g$	200
Pass-loss exponent $α$	2
Gaussian noise	-100 dBm

Figure 6. Clusters and user locations in the cellular coverage.

Figure 7. Helper locations.

Figure 8. Comparison of the total packet numbers for direct transmission and the proposed scheme.

Figure 9. Promotion of packet number proposed scheme comparing with direct transmission.

Figure 10. D2D communication regions in different schemes.

Figure 11. Comparison of methods with or without NWC.

参考文献 15

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Network Coding-Based Interference Management Scheme in D2D Communications

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