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Downlink outage analysis for cognitive cooperative radio networks employing non-orthogonal multiple access
Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för kreativa teknologier.
Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för kreativa teknologier.
2018 (Engelska)Ingår i: 2018 IEEE 7th International Conference on Communications and Electronics, ICCE 2018, Institute of Electrical and Electronics Engineers Inc. , 2018, s. 27-32Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

In this paper, we employ power-domain non-orthogonal multiple access (NOMA) to simultaneously transmit signals to both a primary user (PU) and a secondary user (SU) of a cognitive cooperative radio network (CCRN). Higher priority is given to the PU over the SU by keeping the power allocation coefficients at the base station (BS) and relay (R) above a certain threshold. In this way, similar as the interference power limit imposed by the PU in a conventional underlay CCRN, the power allocation coefficients at the BS and R of the CCRN can be controlled to maintain a given outage performance. Analytical expressions of the cumulative distribution function of the end-to-end signal-to-interference-plus-noise ratios at the PU and SU are derived and then used to assess the outage probabilities of both users. Numerical results are presented to study the impact of system parameters on outage performance of the CCRN with power-domain NOMA. In addition, it is illustrated that increased downlink performance can be obtained by combining power-domain NOMA with CCRNs. © 2018 IEEE.

Ort, förlag, år, upplaga, sidor
Institute of Electrical and Electronics Engineers Inc. , 2018. s. 27-32
Nyckelord [en]
Cognitive radio, Distribution functions, Mobile telecommunication systems, Probability distributions, Signal to noise ratio, Analytical expressions, Cognitive cooperative radio networks, Cumulative distribution function, Downlink performance, Interference power, Non orthogonal multiple accesses (NOMA), Non-orthogonal multiple access, Signal to interference plus noise ratio, Outages
Nationell ämneskategori
Telekommunikation
Identifikatorer
URN: urn:nbn:se:bth-17426DOI: 10.1109/CCE.2018.8465755Scopus ID: 2-s2.0-85057577602ISBN: 9781538636787 (tryckt)OAI: oai:DiVA.org:bth-17426DiVA, id: diva2:1270462
Konferens
7th IEEE International Conference on Communications and Electronics, ICCE 2018,Saigon Morin HotelHue; Viet Nam, 18 July 2018 through 20 July 2018
Tillgänglig från: 2018-12-13 Skapad: 2018-12-13 Senast uppdaterad: 2018-12-13Bibliografiskt granskad

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Chu, Thi My ChinhZepernick, Hans-Juergen

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