Graph colour-based resource allocation for relay-assisted D2D underlay communications

Relay-assisted device-to-device (D2D) communications have been proposed as a supplement for direct D2D communications to enhance traffic offloading capacity. In this study, the authors propose a joint mode selection, relay selection and resource allocation for relay-assisted D2D communications. They...

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Bibliographic Details
Published in:IET communications Vol. 14; no. 16; pp. 2701 - 2708
Main Authors: Liu, Miaomiao, Zhang, Li
Format: Journal Article
Language:English
Published: The Institution of Engineering and Technology 06.10.2020
Subjects:
active D2D links
cellular D2D links
cellular radio
device‐to‐device communications
direct D2D communications
graph colouring
graph colour‐based resource allocation algorithm
joint mode selection
mobile radio
optimisation
relay networks (telecommunication)
relay selection
relay‐assisted D2D communications
relay‐assisted D2D underlay communications
Research Article
resource allocation
signal‐to‐noise‐and‐interference ratios
telecommunication traffic
traffic offloading capacity
active D2D links
mobile radio
joint mode selection
cellular D2D links
graph colouring
device-to-device communications
optimisation
relay-assisted D2D communications
resource allocation
signal-to-noise-and-interference ratios
direct D2D communications
relay selection
graph colour-based resource allocation algorithm
relay-assisted D2D underlay communications
traffic offloading capacity
telecommunication traffic
cellular radio
relay networks (telecommunication)
ISSN:1751-8628, 1751-8636
Online Access:Get full text
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Summary:Relay-assisted device-to-device (D2D) communications have been proposed as a supplement for direct D2D communications to enhance traffic offloading capacity. In this study, the authors propose a joint mode selection, relay selection and resource allocation for relay-assisted D2D communications. They aim at maximising the overall system throughput while guaranteeing the power limitation and signal-to-noise-and-interference ratios of all cellular and active D2D links. Since this optimisation is NP-hard, they then propose a graph colour-based resource allocation algorithm to effectively solve it. Simulation results show that the proposed algorithm can produce close-to-optimal performance with acceptable computational complexity.
ISSN:1751-8628
1751-8636
DOI:10.1049/iet-com.2019.1281