Lin, Peng, Khan, Komal S., Song, Qingyang, and Jamalipour, Abbas (2019) Caching in heterogeneous ultradense 5G networks: a comprehensive cooperation approach. IEEE Vehicular Technology Magazine, 14 (2). pp. 22-32.

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Abstract

Rich multimedia services have significantly increased the traffic load over mobile networks. Emerging mobile content caching techniques can efficiently relieve overloaded network traffic by caching popular contents at intermediate nodes and routers. Furthermore, stimulated by network densification, coordinated multipoint (CoMP) joint transmission (JT) techniques are expected to have a significant role in 5G networks. In this article, we present a system architecture for a cache-enabled heterogeneous ultra-dense network (HUDN) that consists of CoMP-integrated ultradense cells and cluster-based device-to-device (D2D) networks. We propose three cooperative caching schemes in cellular networks, D2D networks, and cross-tier networks. In the proposed schemes, caching decisions will be made by considering the content's popularity, the device distribution, the transmission method, and the caching capability. Numerical evaluations reveal that the proposed schemes outperform existing ones in terms of delay and cache hit probability.

Item ID:	67042
Item Type:	Article (Research - C1)
ISSN:	1556-6080
Related URLs:	Publisher
Copyright Information:	(C) IEEE
Funders:	National Natural Science Foundation of China (NNSFC), Fundamental Research Funds for the Central Universities (FRFCU)
Projects and Grants:	NNSFC 61771120, NNSFC 61775033, FRFCU N161608001, FRFCU N171602002
Date Deposited:	08 Apr 2021 22:14
FoR Codes:	40 ENGINEERING > 4006 Communications engineering > 400608 Wireless communication systems and technologies (incl. microwave and millimetrewave) @ 60% 40 ENGINEERING > 4006 Communications engineering > 400699 Communications engineering not elsewhere classified @ 40%
SEO Codes:	22 INFORMATION AND COMMUNICATION SERVICES > 2201 Communication technologies, systems and services > 220107 Wireless technologies, networks and services @ 60% 22 INFORMATION AND COMMUNICATION SERVICES > 2201 Communication technologies, systems and services > 220199 Communication technologies, systems and services not elsewhere classified @ 40%
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