6533b838fe1ef96bd12a46ac
RESEARCH PRODUCT
Outage Analysis of Relay-Aided Non-Orthogonal Multiple Access with Partial Relay Selection
Syed Junaid NawazShurjeel WyneZheng ChangTapani RistaniemiFurqan Jameelsubject
Computer scienceReliability (computer networking)5G-tekniikkaData_CODINGANDINFORMATIONTHEORY02 engineering and technologylaw.inventionlangaton tiedonsiirto0203 mechanical engineeringRelaylawComputer Science::Networking and Internet Architecture0202 electrical engineering electronic engineering information engineeringElectronic engineeringFadingComputer Science::Information Theoryta213partial relay selectionComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS020206 networking & telecommunications020302 automobile design & engineeringselection combiningnon-orthogonal multiple access (NOMA)Telecommunications networkTransmission (telecommunications)Nakagami-fading5Gdescription
Non-Orthogonal multiple access (NOMA) holds promise as a spectrally efficient multiple access scheme for 5G communication networks. This work investigates the performance of NOMA in a dual-hop amplify-and-forward (AF) relaying network, which is subject to Nakagami-$m$ fading. Specifically, we obtain a novel closed-form expression of the outage probability for the near and far users when the partial relay selection (PRS) scheme is used for selecting the best among $N$ intermediate relays. The users are considered to employ selection combining technique in order to combine the relayed and the direct transmission signals for an increased reliability of detection. Then, we evaluate the impact of the number of intermediate relays, the NOMA power allocation factor, and the Nakagami-$m$ fading severity parameter on the outage performance of the NOMA users. The analytical results are validated by performing Monte Carlo Simulations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-12-01 |