Title: Performance analysis of dual-hop DF multi-relay communication applying TAS/MRC and JTRAS system over Fisher-Snedecor F fading channels

Authors: Hubha Saikia; Rajkishur Mudoi

Addresses: Department of Electronics and Communication Engineering, North-Eastern Hill University, Shillong, Meghalaya, India ' Department of Electronics and Communication Engineering, North-Eastern Hill University, Shillong, Meghalaya, India

Abstract: In this paper, the Outage Probability (OP), Bit-Error-Rate (BER) and ergodic capacity of dual-hop and Decode-and-Forward (DF) type multi-relay aided communication system subject to Fisher-Snedecor F fading channel are analysed. The Multiple-Input-Multiple-Output (MIMO) technique is utilised in the communication system. The MIMO system can upgrade the system performance, but such a method uses plenty of antennas, thereby increasing the cost and hardware ramifications of the system. In this article, to prevail over these problems, at first the Transmit Antenna Selection (TAS) is utilised for the transmission of signals along with the Maximal Ratio Combining (MRC) diversity receiver. In the second method, a Joint Transmit and Receive Antenna Selection (JTRAS) diversity scheme is applied for communication. The expressions of OP, BER and ergodic capacity are obtained concerning TAS/MRC as well as JTRAS type MIMO systems. The OP and the BER expressions are derived using the Cumulative Distribution Function (CDF) of instantaneous SNR. The expression of channel capacity is obtained using the Probability Density function (PDF) of instantaneous SNR. The obtained expressions are verified by using Monte-Carlo simulation.

Keywords: BER; cooperative communication; dual-hop; decode-and-forward; joint transmit and receive antenna; maximal ratio combining.

DOI: 10.1504/IJVICS.2026.150573

International Journal of Vehicle Information and Communication Systems, 2026 Vol.11 No.1, pp.53 - 71

Received: 09 Nov 2023
Accepted: 14 Feb 2025
Published online: 17 Dec 2025 *

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