کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
13432052 | 1842585 | 2020 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cooperative non-orthogonal multiple access for two-way relay networks
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
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چکیده انگلیسی
In this paper, we propose a cooperative non-orthogonal multiple access (NOMA) based relaying scheme for a two-way relay network (TWRN) where one user communicates with the base station (BS) directly while the other indirect-link user exchanges message with the BS via the help of a decode-and-forward (DF) relay station. We analyze the sum-rate performance of the proposed scheme, and derive a closed-form expression for the ergodic capacity. Furthermore, we analyze the asymptotic performance in the high signal-to-noise ratio (SNR) region. Simulation results show that the proposed DF based cooperative NOMA TWR transmission scheme achieves a much higher sum-rate than its AF counterpart and conventional time-division multiple access (TDMA) based scheme.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 115, February 2020, 153021
Journal: AEU - International Journal of Electronics and Communications - Volume 115, February 2020, 153021
نویسندگان
Zhaoxi Fang, Jun Li, Yingzhi Lu,