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This paper analyzes the performance of clustered decode-and-forward multi-hop relaying (CDFMR) wireless Rayleigh fading networks, and sheds light on their design principles for energy and spectral efficiency. The focus is on a general…

Information Theory · Computer Science 2014-07-01 Amin Azari , Jalil Seifali Harsini , Farshad Lahouti

In this work, we investigate the performance of a dual-hop multiple relays system consisting of mixed Radio-Frequency (RF)/Free Space Optical (FSO) channels. The RF channels are subject to Rayleigh fading while the optical links experience…

Signal Processing · Electrical Eng. & Systems 2019-01-21 Elyes Balti , Brian K. Johnson

In this paper, we evaluate the end-to-end bit error rate (BER) of point-to-point underwater wireless optical communication (UWOC) systems with multi-hop transmission. To do so, we analytically derive the BER expression of a single-hop UWOC…

Information Theory · Computer Science 2016-03-15 Mohammad Vahid Jamali , Ata Chizari , Jawad A. Salehi

Understanding the performance of cognitive radio systems is of great interest. To perform dynamic spectrum access, different paradigms are conceptualized in the literature. Of these, Underlay System (US) has caught much attention in the…

Information Theory · Computer Science 2016-11-15 Ankit Kaushik , Shree Krishna Sharma , Symeon Chatzinotas , Björn Ottersten , Friedrich Jondral

In wireless communications, the cooperative communication (CC) technology promises performance gains compared to traditional Single-Input Single Output (SISO) techniques. Therefore, the CC technique is one of the nominees for 5G networks.…

Signal Processing · Electrical Eng. & Systems 2018-07-13 Ferdi Kara , Hakan Kaya , Okan Erkaymaz , Ertan Ozturk

End-to-end learning of a communications system using the deep learning-based autoencoder concept has drawn interest in recent research due to its simplicity, flexibility and its potential of adapting to complex channel models and practical…

Information Theory · Computer Science 2020-01-22 Nuwanthika Rajapaksha , Nandana Rajatheva , Matti Latva-aho

In this paper, error performance of the cooperative communication systems with the best relay selection scheme is investigated in the presence of error propagation from role to destination. The error propagation expression is derived…

Information Theory · Computer Science 2018-07-13 Ezgi Sanli , Ferdi Kara , Hakan Kaya

We study the performance of cognitive Underlay System (US) that employ power control mechanism at the Secondary Transmitter (ST) from a deployment perspective. Existing baseline models considered for performance analysis either assume the…

Information Theory · Computer Science 2016-11-15 Ankit Kaushik , Shree Krishna Sharma , Symeon Chatzinotas , Björn Ottersten , Friedrich K. Jondral

In this paper, we investigate the impact of Forward Error Correction (FEC) codes namely Cyclic Redundancy Code and Convolution Code on the performance of OFDM wireless communication system for speech signal transmission over both AWGN and…

In addition to serve as platforms for dynamic spectrum access, cognitive radios can also serve as a method for improving the performance of wireless communication systems by smartly adjusting their operating parameters according to the…

Information Theory · Computer Science 2016-11-18 Hector Reyes , Sriram Subramaniam , Naima Kaabouch

Cooperative relaying improves the performance of wireless networks by forming a network of multiple independent virtual sources transmitting the same information as the source node. However, interference induced in the network reduces the…

Information Theory · Computer Science 2012-10-22 Bappi Barua , Mehran Abolhasan , Daniel Franklin , Farzad Safaei

This paper addresses the problem of unsupervised soft bit error rate (BER) estimation for any communications system, where no prior knowledge either about transmitted information bits, or the transceiver scheme is available. We show that…

Information Theory · Computer Science 2013-09-26 Samir Saoudi , Tarik Ait-Idir , Yukou Mochida

In this paper, we examine the performance of the decode-and-forward (DF) relaying protocols with finite blocklength (FB). We provide the overall outage probability of three distinct DF relaying protocols, where the channels are assumed to…

Information Theory · Computer Science 2017-06-22 Parisa Nouri , Hirley Alves , Matti Latva-aho

This paper extends some approximation methods that are used to identify closed form Bit Error Rate (BER) expressions which are frequently utilized in investigation and comparison of performance for wireless communication systems in the…

Information Theory · Computer Science 2016-11-18 Tugcan Aktas , Ali Ozgur Yilmaz , Emre Aktas

As the mobile application landscape expands, wireless networks are tasked with supporting various connection profiles, including real-time communications and delay-sensitive traffic. Among many ensuing engineering challenges is the need to…

Information Theory · Computer Science 2012-02-13 Fatemeh Hamidi-Sepehr , Jean-Francois Chamberland , Henry Pfister

The problem of dual-hop transmission from a source to a destination via two parallel full-duplex relays in block Rayleigh fading environment is investigated. All nodes in the network are assumed to be oblivious to their forward channel…

Information Theory · Computer Science 2012-06-19 Mahdi Zamani , Amir K. Khandani

In this paper, we analyze the error probability of reconfigurable intelligent surfaces (RIS)-enabled communication systems with quantized channel phase compensation over Rayleigh fading channels. The probability density and characteristic…

Information Theory · Computer Science 2021-01-11 Iméne Trigui , Edouard Komi Agbogla , Mustapha Benjillali , Wessam Ajib , Wei-Ping Zhu

This paper investigates the performance of joint time delay and Doppler-stretch estimation with the random stepp ed-frequency (RSF) signal. Applying the ambiguity function (AF) to implement the estimation, we derive the compact expressions…

Information Theory · Computer Science 2016-05-20 Tong Zhao , Zheng Nan , Tianyao Huang

Non-orthogonal multiple access (NOMA) is widely recognized for its spectral and energy efficiency, which allows more users to share the network resources more effectively. This paper provides a generalized bit error rate (BER) performance…

Signal Processing · Electrical Eng. & Systems 2024-05-31 Mahmoud AlaaEldin , Emad Alsusa , Mohammad Al-Jarrah , Karim G. Seddik

In order to satisfy the delay requirements of telecommunication systems, in this paper, we present a cooperative network with the short packet transmission in the Rayleigh fading channel. The desired relay can be implemented as a two-way…

Information Theory · Computer Science 2022-02-08 Mohammad Lari , Zahra Keshavarz Gandomani