NDLI: QoS-based device-to-device communication schemes in heterogeneous wireless networks

Content Provider	IET Digital Library
Author	Dai, Zeyang Liu, Jian Wang, Chonggang
Abstract	This study considers spectrum sharing problems in the heterogeneous wireless networks where different device-to-device (D2D) users coexist with the cellular users. The authors propose a novel scheme, called ‘spectrum partition-based D2D transmission’ (SPDT), to improve spectrum efficiency of the D2D and cellular networks. In SPDT, the D2D users assist the cellular transmissions to gain some spectrum released from the cellular system. Then, the obtained spectrum is divided into several frequency bands and each band is assigned to a different D2D pair for its data transmission. Under the quality-of-service (QoS) constraints of both the D2D and cellular users, the authors exploit the tradeoff in the power allocation of the D2D transmitters and show that the number of the allowed accessing D2D pairs can be maximised by optimising the D2D transmitters power for SPDT. For comparison the power optimisation problem is also investigated with the objective of maximising the number of allowed users accessing D2D pairs in the power control scheme, called ‘underlay D2D transmission’ (UDT). This is where the D2D users access the spectrum being used by the cellular users with power control while ensuring that the QoS of the cellular transmissions is satisfied. Finally, the simulation results show evident performance gains of the proposed SPDT scheme over the UDT scheme.
Starting Page	335
Ending Page	341
Page Count	7
ISSN	17518628
Volume Number	9
e-ISSN	17518636
Issue Number	Issue 3, Feb (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/9/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2014.0268
Journal	IET Communications
Publisher Date	2014-10-15
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Cellular Network Cellular Radio Cellular Transmissions D2D Transmitters Device-to-device Communication Heterogeneous Wireless Network Legislation, Frequency Allocation And Spectrum Pollution Mobile Radio System Power Allocation Power Control Power Optimisation Problem QoS Quality of Service Radio Spectrum Management Radio Transmitters Resource Allocation SPDT Spectrum Efficiency Spectrum Partition Based D2D Transmission Spectrum Sharing Problem UDT Underlay D2D Transmission
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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