Performance analysis of cooperative NOMA at intersections for vehicular communications in the presence of interference

Belmekki, Baha Eddine Youcef; Hamza, Abdelkrim; Escrig, Benoît

doi:10.1016/j.adhoc.2019.102036

Cited by 19 publications

(9 citation statements)

References 32 publications

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“…As shown in Fig. 2, downlink phase occurs from the base-station to the users and cooperative transmission takes place between the two users.The base station and the two users share a single antenna and work in half-duplex mode [27]. Hereafter, subscripts BS, UE 1 , UE 2 denote to the base-station, user one, and user two respectively.…”

Section: System Modelmentioning

confidence: 99%

A Novel Cooperative Network Using Down-link Non-orthogonal Multiple Access Scheme

Mohsan

Hamood

Shah

et al. 2021

2021 Photonics &Amp; Electromagnetics Research Symposium (PIERS)

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A novel downlink cooperative non-orthogonal multiple access (DC-NOMA) scheme is proposed in this paper to achieve higher performance in the spectral efficiency compared to the classical NOMA schemes. The communication system consists of one base station and two users (e.g., strong user and weak user). In down link phase, the base station transmits a superimposed signal to both users, and in the cooperative phase, the weak user sends its decoded message to the strong user. The main idea is how the weak user can help the strong user to improve the performance of both users. This occurs by enabling the weak user to perform a cooperative transmission with the strong user during the cooperative phase. The outage probability, outage throughput, and diversity order are derived and analyzed. Numerical results are provided to show that the spectral efficiency gain achieved through our proposed scheme is better than the conventional cooperative NOMA schemes.

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Section: System Modelmentioning

confidence: 99%

A Novel Cooperative Network Using Down-link Non-orthogonal Multiple Access Scheme

Mohsan

Hamood

Shah

et al. 2021

2021 Photonics &Amp; Electromagnetics Research Symposium (PIERS)

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“…The authors in [19] study the effect of mobility of vehicular communications at road junctions. In [20]- [23], the authors respectively study the impact of non-orthogonal multiple access, and cooperative non-orthogonal multiple access with NOMA at intersections. The authors further extended their work to millimeter wave vehicular networks using NOMA in [24], [25].…”

Section: B Related Workmentioning

confidence: 99%

Outage Analysis of Cooperative NOMA Using Maximum Ratio Combining at Intersections

Belmekki

Hamza

Escrig

2019

2019 International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)

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The paper investigates the improvement of using maximum ratio combining (MRC) in cooperative vehicular communications (VCs) transmission schemes considering non-orthogonal multiple access scheme (NOMA) at intersections. The transmission occurs between a source and two destination nodes with a help of a relay. The transmission is subject to interference originated from vehicles that are located on the roads. Closed form outage probability expressions are obtained. We compare the performance of MRC cooperative NOMA with a classical cooperative NOMA, and show that implementing MRC in cooperative NOMA transmission offers a significant improvement over the classical cooperative NOMA in terms of outage probability. We also compare the performance of MRC cooperative NOMA with MRC cooperative orthogonal multiple access (OMA), and we show that NOMA has a better performance than OMA. Finally, we show that the outage probability increases when the nodes come closer to the intersection, and that using MRC considering NOMA improves the performance in this context. The analysis is verified with Monte Carlo simulations. A. MotivationRoad traffic safety is a major issue, and more particularly at intersections since 50% of accidents occurs at intersections [2]. Vehicular communications (VCs) offer several applications for accident prevention, or alerting vehicles when accidents happen in their vicinity. Thus, high reliability and low latency communications are required in safety-based vehicular communications. To increase the data rate and spectral efficiency [3] in the fifth generation (5G) of communication systems, non-orthogonal multiple access (NOMA) is an appropriate candidate as a multiple access scheme. Unlike orthogonal multiple access (OMA), NOMA allows multiple users to share the same resource with different power allocation levels. B. Related WorksNOMA is an efficient multiple access technique for spectrum use. It has been shown that NOMA outperforms OMA [4]-[8]. However, few research investigates the effect of co-channel interference and their impact on the performance considering direct transmission [9]-[11], and cooperative transmission [12]. Regarding VCs, several works investigate the effect of interference considering OMA in highway scenarios [13]. As for intersection scenarios, the performance in terms of success probability are derivated [14], [15]. The performance of vehicle to vehicle (V2V) communications are evaluated for multiple intersections scheme in [16]. In [17], the authors derive the outage probability of a V2V communications with power control strategy. In [18], the authors investigate the impact of a line of sight and non line of sight transmissions at intersections considering Nakagami-fading channels. The authors in [19] study the effect of mobility of vehicular communications at road junctions. In [20]-[23], the authors respectively study the impact of non-orthogonal multiple access, and cooperative non-orthogonal multiple access with NOMA at intersections. The authors further extended their wor...

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“…A system is presented [4] for Adaptive intersection selection using Ant colony Optimization approach, a problem of finding a challenging route concern for the multiple QoS constraint. In addition, the outcomes in the urban framework reveals that the AISM outperforms the traditional protocols by extensive simulation environment in terms of Packet delivery ratio, hop count, and average delay [10]. An adaptive multichannel medium access control (MAC) high-throughput protocol, specifically, AHT-MAC [11] was proposed that could manage the transmission of data over SCHs.…”

Section: Introductionmentioning

confidence: 99%

An Approach for Intersection Prevention in Transmission Channel Using Correlation Matrix and Tree Construction Model in V2X Framework

Jenicka

2022

Wireless Pers Commun

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VANET is regarded as the extended mobile ad-hoc networks application that finds out new routes to the points of communication during handoff time. The communicating vehicle prompts re-routing for the discovery of new communication points positioned further away or nearby [3]. The procedure of Handoff provided for VANET should ensure flawless performance on behalf of supporting these applications. Because of vehicle's direction and unpredictable velocity, in VANETs handoff is a challenging task [4,5]. The application of VANET requires the moving vehicle's position to assist specific user services. In VANET, the localization of conventional global positioning system (GPS) does not assure the position based application due to availability concern, signal errors, localization proximity, communication management, and handoff. These are the incorporated blocks and disputes for the management of mobility (MM) in VANETs [6,7]. In the scenario of urban VANET, usually vehicles are not dispersed consistently in the region of the City road. For these, the network might be fragmented and the proficient communication among V2X get affected [8,9]. In addition, the impediments existence like other constructions or buildings could be the interruption basis to radio signal, which in turn leads to communication failure, as they are in the communication zone of each other. Most of the routing protocols proposed intended for Urban VANETs do not allow the probable hindrance with a negative routing impact, which in turn designates that the data flow direction system towards the destination in view of the obstacles existence was a significant research concern. construction based data strength transmission was introduced. Then, the prevention of intersection or collision between the transmissions channels was checked by correlation matrix based intersection prevention technique on monitoring the neighbor node. After that, the data packets were forwarded without any intersection in an efficient manner between the frames. The performance analysis was made and comparisons were carried with existing techniques in terms of network lifetime, packet delivery ratio, packet collision, inter node collision, end-to-end delay, and throughput.

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Performance analysis of cooperative NOMA at intersections for vehicular communications in the presence of interference

Cited by 19 publications

References 32 publications

A Novel Cooperative Network Using Down-link Non-orthogonal Multiple Access Scheme

A Novel Cooperative Network Using Down-link Non-orthogonal Multiple Access Scheme

Outage Analysis of Cooperative NOMA Using Maximum Ratio Combining at Intersections

An Approach for Intersection Prevention in Transmission Channel Using Correlation Matrix and Tree Construction Model in V2X Framework

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