Relay Selection for Cooperative NOMA Networks over Fading and Shadowing Channels

被引：0

作者：

Fidan, Efendi ^{[1
,2
]}

Kucur, Oguz ^{[1
]}

机构：

[1] TUBITAK Ulusal Metrol Enstitusu TUBITAK UME, TR-41470 Gebze, Turkey

[2] Gebze Tekn Univ, Elekt Muhendisligi Bolumu, TR-41400 Gebze, Turkey

来源：

2020 28TH SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS CONFERENCE (SIU) | 2020年

关键词：

NOMA; Relay Selection; Half-Duplex; Decode-and-Forward; Generalized-K; NONORTHOGONAL MULTIPLE-ACCESS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this work, a two-stage relay selection for a fixed power based cooperative non-orthogonal multiple access (NOMA) transmission technique is investigated, where a base station transmits data to two users via help of half-duplex (HD) multiple relays in accordance with service priority. It is assumed that the transmission medium is both small-scale and large-scale faded, and the amplitudes of the channel gains are independent identically generalized-K distributed (GKD). A relay subset is determined based on service priority for user 1 and, thereafter, a relay is selected to maximize data rate of user 2. Outage probability (OP) results for HD transmission and decode-and-forward (DF) protocol are provided via Monte Carlo simulation technique. Many special cases of GKD (Rayleigh, Nakagami-m, etc.) are exemplified. Findings demonstrate how severely fading and shadowing deteriorates system performance and its affect can be eliminated in case of selecting a relay out of multiple relays.

引用

页数：4

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