NDLI: User cooperation in OFDM-based cognitive radio networks with simultaneous wireless information and power transfer

Content Provider	IEEE Xplore Digital Library
Author	Zan Gao Baoyun Wang
Copyright Year	2015
Description	Author affiliation: Coll. of Commun. & Inf. Eng., Nanjing Univ. of Posts & Telecommun., Nanjing, China (Zan Gao; Baoyun Wang)
Abstract	In this paper, we consider user cooperation in a cognitive radio network (CRN) which is operated in orthogonal frequency division multiplexing (OFDM) scheme in the context of simultaneous wireless information and power transfer (SWIPT). In particular, the secondary transmitter (ST) cannot only relay the received primary signals to assist primary transmission and earn more opportunities to utilize the primary spectrum, but also extract energy from part of those signals to power both the relay transmission and the secondary transmission. Under such protocol, we propose two joint information and energy cooperation schemes corresponding to two practical receiver architectures at the ST, namely, time switching and power splitting. The SU's achievable rate is maximized by jointly optimizing time and power allocations in cooperative transmission while meeting the PU's Quality-of-Service requirement. Simulation results demonstrate that the proposed user cooperation schemes significantly improve the achievable throughput.
Starting Page	1
Ending Page	6
File Size	810278
Page Count	6
File Format	PDF
e-ISBN	9781467376877
DOI	10.1109/WCSP.2015.7341236
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols OFDM Switches Cognitive radio (CR) User cooperation Resource management Energy harvesting Cognitive radio Relays Simultaneous wireless information and power transfer Orthogonal frequency division multiplexing (OFDM)
Content Type	Text
Resource Type	Article

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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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