Diversity achieving full-duplex DF relaying with joint relay-antenna selection under Nakagami-m fading environment
Shirzadian Gilan M. Maham B.
25 March 2023John Wiley and Sons Ltd
International Journal of Communication Systems
2023#36Issue 5
One of the main imperfections degrading the performance of full-duplex (FD) relaying systems is the outage floor. In this work, a power scaling method is proposed, which overcomes this effect even when there does not exist a direct channel between source and destination nodes. The system is composed of (Formula presented.) decode-and-forward (DF) FD relays over the Nakagami-m fading environment. To promote system performance, joint antenna and relay selection methods are employed in the FD relaying systems. Each FD relay is equipped with multiple antennas for receiving and the other for transmitting the information. The transmitting and receiving antennas are chosen based on the instantaneous channel variations, and one relay is selected to improve the signal-to-interference and noise ratio (SINR) of the FD relaying system. The performance of the proposed design is investigated. Moreover, the closed-form equations of the ergodic capacity and outage probability are attained. The analytical results are confirmed by different simulations. Results indicate that the proposed design achieves an additional spatial diversity gain because of using the antenna selection at the relay nodes. Moreover, by power scaling (PS) method, the system performance is effectively improved compared to the conventional FD relaying structures.
antenna selection , full-duplex , Nakagami-m fading , relay selection , self-loop interference
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Faculty of Engineering, University of Kurdistan, Sanandaj, Iran
School of Engineering, Nazarbayev University, Astana, Kazakhstan
Faculty of Engineering
School of Engineering
10 лет помогаем публиковать статьи Международный издатель
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