User-priority-based resource allocation for device-to-device communications in 5G underlaying cellular networks

Ba, Xinran, Wang, Yafeng, Fan, Jiangsheng, and Xiang, Wei (2019) User-priority-based resource allocation for device-to-device communications in 5G underlaying cellular networks. IET Communications, 13 (8). pp. 1016-1024.

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Abstract

In 5G cellular networks, device-to-device (D2D) communications help greatly improve spectral efficiency and reduce communication latency. However, interference is intrinsic to D2D communications when sharing spectral resources with cellular users (CUs). On the other hand, D2D is able to bear more and more services, which help user-centred and personalised services become development trends in 5G networks. Against this background, the authors propose a user-priority-based resource allocation scheme in consideration of interference. The scheme first divides the service priority of D2D into four levels based on the principle of satisfying the quality-of-service (QoS) requirements of D2D as much as possible and then performs admission control allowing a D2D pair to use the CU spectral resources according to different priority levels. Next, they develop a maximum throughput scheme for the admissible D2D pair to select a suitable CU partner. Finally, a maximum weighted bipartite matching scheme is adopted. The proposed scheme is compared with a benchmark QoS-aware scheme in terms of the cell radius, distance, and maximum power of the D2D pair. Simulation results show that the proposed scheme is able to notably improve system throughput.

Item ID: 58431
Item Type: Article (Research - C1)
ISSN: 1751-8636
Keywords: quality of service; cellular radio; resource allocation; radiofrequency interference
Copyright Information: © The Institution of Engineering and Technology
Funders: National Key Technology Research & Development (NKTRD) Program of China
Projects and Grants: NKTRD grant no. 2017ZX03001009
Date Deposited: 29 May 2019 07:50
FoR Codes: 10 TECHNOLOGY > 1005 Communications Technologies > 100504 Data Communications @ 50%
10 TECHNOLOGY > 1005 Communications Technologies > 100510 Wireless Communications @ 50%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890103 Mobile Data Networks and Services @ 100%
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