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基于协作式非正交多址接入的绿色无线网络中具有固定增益或可变增益协议切换机制的混合解码/转发与解码/放大转发

HD/FD and DF/AF with Fixed-Gain or Variable-Gain Protocol Switching Mechanism over Cooperative NOMA for Green-Wireless Networks.

作者信息

Tran Thanh-Nam, Voznak Miroslav

机构信息

Faculty of Electrical Engineering and Computer Science, Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic.

出版信息

Sensors (Basel). 2019 Apr 18;19(8):1845. doi: 10.3390/s19081845.

DOI:10.3390/s19081845
PMID:31003436
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6514821/
Abstract

This article studied the application of multiple protocol switching mechanism (PSM) over cooperating Non-Orthogonal Multiple Access (NOMA) networks to minimize the probability of outage and maximize the system throughput and energy efficiency (EE). This study investigated six scenarios: (1) a cooperative NOMA system with half-duplex (HD) and decode-and-forward (DF) protocols at the relay; (2) a cooperative NOMA system with full-duplex (FD) and DF protocols at the relay; (3) a cooperative NOMA system with HD and amplification amplify-and-forward (AF) with fixed-gain (FG) protocols at the relay; (4) a cooperative NOMA system with HD and amplification AF with variable-gain (VG) protocols at the relay; (5) a cooperative NOMA system with FD and amplification AF with FG protocols at the relay; (6) a cooperative NOMA system with FD and amplification AF with VG protocols at the relay. Based on the results of analysis and simulations, the study determined the transmission scenario for best system performance. This paper also proposed a mechanism to switch between HD/FD and DF/AF with FG/VG protocols in order to improve the quality of service (QoS) for users with a weak conditional channel. This mechanism can be deployed in future 5G wireless network sensors. Finally, EE was also assessed in relation to future green-wireless networks (G-WNs).

摘要

本文研究了多协议切换机制（PSM）在协作非正交多址接入（NOMA）网络中的应用，以最小化中断概率并最大化系统吞吐量和能量效率（EE）。本研究调查了六种场景：（1）中继处采用半双工（HD）和解码转发（DF）协议的协作NOMA系统；（2）中继处采用全双工（FD）和DF协议的协作NOMA系统；（3）中继处采用HD和固定增益（FG）放大转发（AF）协议的协作NOMA系统；（4）中继处采用HD和可变增益（VG）放大AF协议的协作NOMA系统；（5）中继处采用FD和FG放大AF协议的协作NOMA系统；（6）中继处采用FD和VG放大AF协议的协作NOMA系统。基于分析和仿真结果，该研究确定了实现最佳系统性能的传输场景。本文还提出了一种在HD/FD和具有FG/VG协议的DF/AF之间进行切换的机制，以提高条件信道较弱用户的服务质量（QoS）。该机制可部署在未来的5G无线网络传感器中。最后，还针对未来的绿色无线网络（G-WN）对能量效率进行了评估。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/99164f843c50/sensors-19-01845-g012.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/c2ecb587308f/sensors-19-01845-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/b0b6701e728e/sensors-19-01845-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/45e5d70fc134/sensors-19-01845-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/a60abf3d24a3/sensors-19-01845-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/c208d1c31460/sensors-19-01845-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/99164f843c50/sensors-19-01845-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/c60b2f280f46/sensors-19-01845-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/374590ade5b4/sensors-19-01845-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/82a7325dd155/sensors-19-01845-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/1510b77ad0c8/sensors-19-01845-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/772b86a9fb57/sensors-19-01845-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/a71717ea7015/sensors-19-01845-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/c2ecb587308f/sensors-19-01845-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/b0b6701e728e/sensors-19-01845-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/45e5d70fc134/sensors-19-01845-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/a60abf3d24a3/sensors-19-01845-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/c208d1c31460/sensors-19-01845-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a35/6514821/99164f843c50/sensors-19-01845-g012.jpg

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