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Millimeter-wave networks have already been successfully rolled out in many countries and now the research direction heads toward new technologies and standards to enable Tbps rates for future sixth-generation (6G) wireless communication…

Information Theory · Computer Science 2023-11-03 Leila Tlebaldiyeva , Sultangali Arzykulov , Khaled M. Rabie , Xingwang Li , Galymzhan Nauryzbayev

The precision of link-level theoretical performance analysis for emerging wireless communication paradigms is critical. Recent studies have demonstrated the excellent fitting capabilities of the mixture gamma (MG) distribution in…

Signal Processing · Electrical Eng. & Systems 2024-09-04 Hakim Jemaa , Simon Tarboush , Hadi Sarieddeen , Mohamed-Slim Alouini , Tareq Y. Al-Naffouri

Wireless power transfer and energy harvesting have attracted a significant research attention in terms of their application in cooperative relaying systems. Most of existing works in this field focus on the half-duplex (HD) relaying…

Signal Processing · Electrical Eng. & Systems 2018-08-09 Galymzhan Nauryzbayev , Mohamed Abdallah , Khaled M. Rabie

Utilizing terahertz (THz) transmission to enhance coverage has proven various benefits compared to traditional radio frequency (RF) counterparts. This letter proposes a dual-hop decode-and-forward (DF) routing protocol in a hybrid RF and…

Information Theory · Computer Science 2023-03-20 Zhengying Lou , Baha Eddine Youcef Belmekki , Mohamed-Slim Alouini

In this paper, we examine the outage performance of a cognitive relay network, which is comprised of a secondary transmitter (ST), multiple decode-and-forward (DF) relays and a secondary destination (SD). We propose a multi-relay selection…

Information Theory · Computer Science 2016-11-17 Yulong Zou , Jia Zhu , Baoyu Zheng

Terahertz (THz) frequencies are important for next generation wireless systems due to the advantages in terms of large available bandwidths. On the other hand, the limited range due to high attenuation in these frequencies can be overcome…

Signal Processing · Electrical Eng. & Systems 2024-05-31 Hasan Nayir , Erhan Karakoca , Güneş Karabulut Kurt , Ali Görçin

This paper investigates the outage performance of overhearing amplify-and-forward (AF) cooperative relaying, where a source transmits information to its destination through multiple helping overhearing AF relays with space-time network…

Information Theory · Computer Science 2015-01-06 Yu Zhang , Ke Xiong

In this paper, an adaptive two-way relay cooperation scheme is studied for multiple-relay cognitive radio networks to improve the performance of secondary transmissions. The power allocation and relay selection schemes are derived to…

Information Theory · Computer Science 2017-05-09 Qunwei Li , Pramod K. Varshney

Motivated by the fact that full diversity order is achieved using the "best-relay" selection technique, we consider opportunistic amplify-and-forward and decode-and-forward relaying systems. We focus on the outage probability of such a…

Information Theory · Computer Science 2016-11-15 Ashkan Kalantari , Mohammadali Mohammadi , Mehrdad Ardebilipour

Line-of-sight (LOS) wireless communication at terahertz (THz) frequency bands is envisioned to play a major role in defining next-generation wireless technologies. This work analyzes the performance of a potential LOS THz system…

Information Theory · Computer Science 2022-12-22 Rayyan Abdalla , A. Brinton Cooper

We consider a half-duplex wireless relay network with hybrid-automatic retransmission request (HARQ) and Rayleigh fading channels. In this paper, we analyze the outage probability of the multi-relay delay-limited HARQ system with…

Information Theory · Computer Science 2012-02-14 Behrouz Maham , Aydin Behnad , Merouane Debbah

In this letter, we introduce a novel mixed terahertz (THz)-radio frequency (RF) wireless system architecture, which can be used for backhaul/fronthaul applications, and we deliver the theoretical framework for its performance assessment. In…

Signal Processing · Electrical Eng. & Systems 2019-12-11 Alexandros-Apostolos A. Boulogeorgos , Angeliki Alexiou

This paper studies the outage probability minimization problem for a multiple relay network with energy harvesting constraints. The relays are hybrid nodes used for simultaneous wireless information and power transfer from the source radio…

Information Theory · Computer Science 2016-11-15 M. Majid Butt , Adnan Nasir , Amr Mohamed , Mohsen Guizani

Relay selection is considered to enhance the secrecy of a dual-hop regenerative multi-relay system with an eavesdropper. Without assuming perfect decoding at the relays, the secrecy outage probability of a single relay system is obtained…

Signal Processing · Electrical Eng. & Systems 2021-03-09 Chinmoy Kundu , Sarbani Ghose , Ranjan Bose

In this paper, we analyze the performance of cooperative transmissions in wireless ad hoc networks with random node locations. According to a contention probability for message transmission, each source node can either transmits its own…

Information Theory · Computer Science 2016-11-17 M. Mohammadi , H. A. Suraweera , X. Zhou

In this paper, we study the outage performance of simultaneous wireless information and power transfer (SWIP- T) based three-step two-way decode-and-forward (DF) relay networks, where both power-splitting (PS) and harvest-then-forward are…

Information Theory · Computer Science 2019-01-16 Yinghui Ye , Liqin Shi , Xiaoli Chu , Hailin Zhang , Guangyue Lu

In this paper, we investigate the joint impact of misalignment fading and local oscillator (LO) phase noise (PHN) in multi-carrier terahertz (THz) wireless systems. In more detail, after establishing a suitable system model that takes into…

Information Theory · Computer Science 2019-07-22 Evangelos N. Papsotiriou , Alexandros-Apostolos A. Boulogeorgos , Angeliki Alexiou

Terahertz (THz) communication offers a promising solution for high-throughput wireless systems. However, the severe path loss of THz signals raises concerns about its effectiveness compared to radio frequency (RF) communication. In this…

Networking and Internet Architecture · Computer Science 2025-08-12 Zhengying Lou , Baha Eddine Youcef Belmekki , Mohamed-Slim Alouini

This paper presents an analysis of the asymmetric relaying system which provides communication between hybrid outdoor sub-system and indoor visible light communications (VLC) access points. The outdoor sub-system represents a hybrid…

Networking and Internet Architecture · Computer Science 2022-09-23 Milica Petkovic , Aleksandra Cvetkovic , Milan Narandzic

Terahertz (THz) communications are envisioned to be a promising technology for 6G thanks to its broad bandwidth. However, the large path loss, antenna misalignment, and atmospheric influence of THz communications severely deteriorate its…

Information Theory · Computer Science 2023-04-25 Ziyang Song , Zheng Shi , Jiaji Su , Qingping Dou , Guanghua Yang , Haichuan Ding , Shaodan Ma