NDLI: Wireless energy harvesting-based spectrum leasing with secondary user selection

Content Provider	IET Digital Library
Author	Zhai, Chao Liu, Ju Zheng, Lina Wang, Xinhua
Abstract	The authors consider the multiuser cognitive radio network, where a primary link coexists with multiple secondary transmitters (STs) which intend to communicate with an access point (AP). All the STs can harvest the radio frequency energy from the AP, while the primary terminals have the continuous power supply. The primary data transmission and the ST energy harvesting can be simultaneously performed to improve both the spectral and the energy efficiencies. The STs that have correctly decoded the primary data are classified as potential relays. Each potential relay will calculate the channel quality between itself and the primary receiver and the best one is selected to relay the primary data using the harvested energy. Thanks to the cooperation from STs, the primary data can be more reliably transmitted and the throughput requirement of primary system can be more easily satisfied in a shorter time, and as a reward all the STs except the selected one can transmit their own data to the AP in the remaining time. To facilitate the primary data cooperation, the energy transfer and the secondary data transmission, the optimal time allocation can be determined through maximising the STs’ throughput while guaranteeing the throughput of primary system.
Starting Page	499
Ending Page	506
Page Count	8
ISSN	17518628
Volume Number	11
e-ISSN	17518636
Issue Number	Issue 4, Mar (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/11/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2016.0326
Journal	IET Communications
Publisher Date	2017-03-09
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Access Point Channel Quality Calculation Cognitive Radio Data Classification Data Transmission Energy Conservation Energy Efficiency Energy Harvesting Energy Transfer Multiple Access Communication Multiuser Cognitive Radio Network Primary Data Cooperation Primary Data Relaying Protocol Radio Link And Equipment Radio Receiver Radio Transmitters Receiver Relay Network Reliability Secondary Transmitter Secondary User Selection Spectral Efficiency Spectrum Leasing Telecommunication Telecommunication Network Reliability Time Allocation Time Division Multiple Access Time Division Multiple Access Protocol Wireless Channel Wireless Energy Harvesting
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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