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This paper considers the performance of differential amplify-and-forward (D-AF) relaying over time-varying Rayleigh fading channels. Using the auto-regressive time-series model to characterize the time-varying nature of the wireless…

Information Theory · Computer Science 2014-03-24 M. R. Avendi , Ha H. Nguyen

The dynamic nature of vehicular ad hoc network (VANET) induced by frequent topology changes and node mobility, imposes critical challenges for vehicular communications. Aggravated by the high volume of information dissemination among…

Networking and Internet Architecture · Computer Science 2020-07-30 Anirudh Paranjothi , Mohammad S. Khan , Sherali Zeadally

Time synchronization in communication networks provides a common time frame among all nodes, thussupporting various network functions such as message transmission, channel scheduling and resourcesharing in real-time and in correct order. In…

Networking and Internet Architecture · Computer Science 2018-11-13 Khondokar Fida Hasan , Charles Wang , Yanming Feng , Yu-Chu Tian

Mobile networks receive increasing research interest recently due to their increasingly wide applications in various areas; mobile ad hoc networks (MANET) and Vehicular ad hoc networks (VANET) are two prominent examples. Mobility introduces…

Social and Information Networks · Computer Science 2014-02-27 Huazi Zhang , Zhaoyang Zhang , Huaiyu Dai

Automobiles are becoming increasingly important in our day to day life. Modern automobiles are highly computerized and hence potentially vulnerable to attack. Providing many wireless connectivity for vehicles enables a bridge between…

Cryptography and Security · Computer Science 2025-08-06 Akshay Madhav Deshmukh

The emerging wireless communication technology known as vehicle ad hoc networks (VANETs) has the potential to both lower the risk of auto accidents caused by drivers and offer a wide range of entertainment amenities. The messages broadcast…

Cryptography and Security · Computer Science 2022-07-13 Mahmood A. Al-Shareeda , Selvakumar Manickam

In this letter, we consider the problem of energy detection of unknown signals in an intervehicular communication (IVC) system over n*Rayleigh fading channels (also known as cascaded Rayleigh). Novel tight approximations for the probability…

Information Theory · Computer Science 2016-11-08 Yahia Alghorani , Georges Kaddoum , Sami Muhaidat , Samuel Pierre

In this paper, localization using narrowband communication signals are considered in the presence of fading channels with time of arrival measurements. When narrowband signals are used for localization, due to existing hardware constraints,…

Information Theory · Computer Science 2018-11-06 Xue Zhang , Cihan Tepedelenlioglu , Mahesh K. Banavar , Andreas Spanias , Gowtham Muniraju

A Vehicular Ad-hoc Network (VANET) is a collection of wireless vehicle nodes forming a temporary network without using any centralized Road Side Unit (RSU). VANET protocols have to face high challenges due to dynamically changing topologies…

Networking and Internet Architecture · Computer Science 2013-11-07 Mrs. Vaishali D. Khairnar , Dr. Ketan Kotecha

Unlike the AWGN (additive white gaussian noise) channel, fading channels suffer from random channel gains besides the additive Gaussian noise. As a result, the instantaneous channel capacity varies randomly along time, which makes it…

Information Theory · Computer Science 2014-07-18 Yunquan Dong , Pingyi Fan

Broadcast routing has become an important research field for vehicular ad-hoc networks (VANETs) recently. However, the packet delivery rate is generally low in existing VANET broadcast routing protocols. Therefore, the design of an…

Networking and Internet Architecture · Computer Science 2013-12-25 Weifeng Sun , Feng Xia , Jianhua Ma , Tong Fu , Yu Sun

We investigate the impact of fading correlation on the performance of the doubly dirty fading multiple access channel (MAC) with non-causally known side information at transmitters. Using Copula theory, we derive closed-form expressions for…

Information Theory · Computer Science 2021-06-23 Farshad Rostami Ghadi , Ghosheh Abed Hodtani , F. Javier Lopez-Martinez

Vehicular Ad-hoc Networks (VANETs) operate in highly dynamic environments characterized by high mobility, time-varying channel conditions, and frequent network disruptions. Addressing these challenges, this paper presents a novel…

Neural and Evolutionary Computing · Computer Science 2024-12-11 Weian Guo , Wuzhao Li , Li Li , Lun Zhang , Dongyang Li

Vehicular communications networks (VANETs) enable information exchange among vehicles, other end devices and public networks, which plays a key role in road safety/infotainment, intelligent transportation system, and self-driving system. As…

Signal Processing · Electrical Eng. & Systems 2018-04-13 Nan Cheng , Feng Lyu , Jiayin Chen , Wenchao Xu , Haibo Zhou , Shan Zhang , Xuemin , Shen

Now-a-days vehicles are one of the most important parts of our life. We need them to cross distances in our everyday life. In this paper we discuss Vehicular AdHoc Network (VANET) technology that can ensure the maintenance of traffic rules…

Networking and Internet Architecture · Computer Science 2014-12-01 A. B. M. Moniruzzaman , Md. Sadekur Rahman

The integrity of messages in vehicular ad-hoc networks has been extensively studied by the research community, resulting in the IEEE~1609.2 standard, which provides typical integrity guarantees. However, the correctness of message contents…

Cryptography and Security · Computer Science 2017-04-03 Rens W. van der Heijden , Ala'a Al-Momani , Frank Kargl , Osama M. F. Abu-Sharkh

In vehicular ad-hoc networks (VANETs) the impact of vehicles as obstacles has largely been neglected in the past. Recent studies have reported that the vehicles that obstruct the line-of-sight (LOS) path may introduce 10-20 dB additional…

Networking and Internet Architecture · Computer Science 2013-12-03 Taimoor Abbas , Fredrik Tufvesson

The vehicular ad hoc networks (VANETs) have been researched for over twenty years. Although being a fundamental communication approach for vehicles, the conventional VANETs are challenged by the newly emerged autonomous vehicles (AVs) which…

Networking and Internet Architecture · Computer Science 2021-12-03 Tom H. Luan , Yao Zhang , Lin Cai , Yilong Hui , Changle Li , Nan Cheng

In this paper, the second-order statistics of the instantaneous mutual information are studied, in time-varying Rayleigh fading channels, assuming general non-isotropic scattering environments. Specifically, first the autocorrelation…

Information Theory · Computer Science 2007-07-13 Shuangquan Wang , Ali Abdi

Wireless communications is often subject to channel fading. Various statistical models have been proposed to capture the inherent randomness in fading, and conventional model-based receiver designs rely on accurate knowledge of this…

Information Theory · Computer Science 2021-03-30 Mahdi Boloursaz Mashhadi , Nir Shlezinger , Yonina C. Eldar , Deniz Gunduz