Outage Performance Analysis in Relay-Assisted Inter-Vehicular Communications over Double-Rayleigh Fading Channels

Li, Zhaoxun; Jia, Longzhen; Li, Feng; Hu, Hanying

doi:10.1109/cmc.2010.215

Cited by 13 publications

(6 citation statements)

References 9 publications

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“…fading. Moreover, because of the mobile nature of S, R, and D, and the stationary nature of PU-Rx, the V2V channels, i.e., S → D, S → R, and R → D, are assumed to experience the double-Rayleigh fading [44,45], while the V2I links, such as S → PU and R → PU, are modeled as Rayleigh fading [46,47]. It is worth noting that multiple movable eavesdroppers can be regarded as a single eavesdropper, denoted as E, with multiple distributed antennas for the reason that colluding eavesdroppers can exchange information with each other [6], so the channels related to eavesdroppers, i.e., S → E and R → E, can also be modeled as the Rayleigh channel [15].…”

Section: System and Channel Modelsmentioning

confidence: 99%

Secrecy and Throughput Performance of Cooperative Cognitive Decode-and-Forward Relaying Vehicular Networks with Direct Links and Poisson Distributed Eavesdroppers

Wang,

Li,

Xie

et al. 2024

Electronics

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Cooperative communication and cognitive radio can effectively improve spectrum utilization, coverage range, and system throughput of vehicular networks, whereas they also incur several security issues and wiretapping attacks. Thus, security and threat detection are vitally important for such networks. This paper investigates the secrecy and throughput performance of an underlay cooperative cognitive vehicular network, where a pair of secondary vehicles communicate through a direct link and the assistance of a decode-and-forward (DF) secondary relay in the presence of Poisson-distributed colluding eavesdroppers and under an interference constraint set by the primary receiver. Considering mixed Rayleigh and double-Rayleigh fading channels, we design a realistic relaying transmission scheme and derive the closed-form expressions of secrecy and throughput performance, such as the secrecy outage probability (SOP), the connection outage probability (COP), the secrecy and connection outage probability (SCOP), and the overall secrecy throughput, for traditional and proposed schemes, respectively. An asymptotic analysis is further presented in the high signal-to-noise ratio (SNR) regime. Numerical results illustrate the impacts of network parameters on secrecy and throughput and reveal that the advantages of the proposed scheme are closely related to the channel gain of the relay link compared to the direct link.

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Section: System and Channel Modelsmentioning

confidence: 99%

Secrecy and Throughput Performance of Cooperative Cognitive Decode-and-Forward Relaying Vehicular Networks with Direct Links and Poisson Distributed Eavesdroppers

Wang,

Li,

Xie

et al. 2024

Electronics

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“…Focusing on the limited transmission range and capacity of VANETs, some road side unit (RSU)-based communication capacity enhancement schemes are proposed in [16] and [17] to significantly improve the communication capability of V2I systems. Moreover, based on access point (AP)-assisted inter-vehicular communications, Li Z et al [18], [19] derive the optimal power allocation (OPA) solutions by maximizing source-to-destination channel capacity assuming amplifyand-forward (AF) relaying, and then present the lower bound on outage probability at medium to high SNR.…”

Section: A Related Workmentioning

confidence: 99%

Throughput and Energy Efficiency of Cooperative ARQ Strategies for VANETs Based on Hybrid Vehicle Communication Mode

Wang

Gaber

et al. 2020

IEEE Access

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Vehicular ad-hoc networks (VANETs) are promising research areas which mainly include three communication modes: vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I) and hybrid vehicle communication (HVC). But most of the current research on HVC mode in which vehicle nodes and infrastructures coexist only focuses on the analysis of the optimal single-type relay selection schemes. Inspired by this, in order to design an optimal multi-relay selection scheme which can select different types of relays simultaneously, and to compare it with single-type schemes, this paper firstly introduces a more practical network scenario by proposing a four-node system model which considers communication links between relays and building different channel models for different types of links. Four optimal relay selection protocols, which are named as Non-OR, SOR-AP, SOR-V and DOR-APV respectively, are then designed from the perspective of the different types and numbers of selected relays. The exact expressions of outage probability for each protocol are calculated based on the automatic repeat request (ARQ) protocol to evaluate the link interruption of the four protocols. Furthermore, this paper establishes a generalized 2dimensional discrete time Markov chain (DTMC) model and analyzes the one-step state transition probability for each protocol. The closed-form expressions of system throughput and energy efficiency are derived by calculating the steady state distribution of the DTMC. Finally, the simulation results summarize the suitable network scenarios for which the four proposed protocols are recommended by comparing their system performance, so as to provide some suggestions for the future design and optimization of vehicle mobile networks.

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“…Assuming L diversity channels are involved and following (33), (40), and (78), we can determine the outage probability in this scenario by [8] [67]. By some approximation methods, a numerical solution could be provided [68]- [70].…”

Section: Outage Capacitymentioning

confidence: 99%

Characterization, Signaling, Capacity and Coding Based on Fading Channels: A Review

Wang¹,

Guo²,

Xu³

2016

JCM

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-In this paper, the characterization, diversity, signaling, capacity and coding associated with fading channels are reviewed in an intuitive manner. We first introduce the basic concepts of fading and fading hannels with an adequate number of derivations and simulations, by which the effects of fading on wireless communication can be analyzed comprehensively. Then, we also give the performance analysis of signals propagating over flat and slow Rayleigh fading channel as an example. Specifically, the general form of error probability of received signal propagating over such a channel is presented and several special cases are discussed in depth with simulations. After this, we focus on diversity techniques, a powerful tool to overcome deep fading and improve the reliability of wireless communication. In addition, informationtheoretic issues, e.g. channel capacity, outage probability and coding based on fading channels are also expatiated. By reading this paper, the readers are expected to have a broad understanding of fading phenomenon, a variety of types of fading channels, effects of fading on wireless communication and the methodologies to overcome the disadvantageous effects. Meanwhile, we also point out the future potential research directions in the relevant fields.

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Outage Performance Analysis in Relay-Assisted Inter-Vehicular Communications over Double-Rayleigh Fading Channels

Cited by 13 publications

References 9 publications

Secrecy and Throughput Performance of Cooperative Cognitive Decode-and-Forward Relaying Vehicular Networks with Direct Links and Poisson Distributed Eavesdroppers

Secrecy and Throughput Performance of Cooperative Cognitive Decode-and-Forward Relaying Vehicular Networks with Direct Links and Poisson Distributed Eavesdroppers

Throughput and Energy Efficiency of Cooperative ARQ Strategies for VANETs Based on Hybrid Vehicle Communication Mode

Characterization, Signaling, Capacity and Coding Based on Fading Channels: A Review

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