LTE-V: A TD-LTE-Based V2X Solution for Future Vehicular Network

Chen, Shanzhi; Hu, Jinling; Shi, Yan; Zhao, Li

doi:10.1109/jiot.2016.2611605

Cited by 406 publications

(142 citation statements)

References 14 publications

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“…Therefore, LTE-based technologies, as well as DSRC, are currently supported by different stakeholders, government departments, infrastructure vendors, and vehicle manufacturers in China [16]. In 2016, Chen et al [17,18] from China Academy of Telecommunication Technology proposed long-term evolution-V (LTE-V) as a systematic and integrated V2X solution based on time-division LTE (TD-LTE). Compared with DSRC, LTE-V-direct is a new decentralized architecture which modifies TD-LTE physical layer and tries to keep commonality as possible to provide short-range direct communication, low latency, and high reliability improvements.…”

Section: Introductionmentioning

confidence: 99%

DSRC versus 4G-LTE for Connected Vehicle Applications: A Study on Field Experiments of Vehicular Communication Performance

Zhao

et al. 2017

Journal of Advanced Transportation

210

120

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Dedicated short-range communication (DSRC) and 4G-LTE are two widely used candidate schemes for Connected Vehicle (CV) applications. It is thus of great necessity to compare these two most viable communication standards and clarify which one can meet the requirements of most V2X scenarios with respect to road safety, traffic efficiency, and infotainment. To the best of our knowledge, almost all the existing studies on comparing the feasibility of DRSC or LTE in V2X applications use software-based simulations, which may not represent realistic constraints. In this paper, a Connected Vehicle test-bed is established, which integrates the DSRC roadside units, 4G-LTE cellular communication stations, and vehicular on-board terminals. Three Connected Vehicle application scenarios are set as Collision Avoidance, Traffic Text Message Broadcast, and Multimedia File Download, respectively. A software tool is developed to record GPS positions/velocities of the test vehicles and record certain wireless communication performance indicators. The experiments have been carried out under different conditions. According to our results, 4G-LTE is more preferred for the nonsafety applications, such as traffic information transmission, file download, or Internet accessing, which does not necessarily require the high-speed real-time communication, while for the safety applications, such as Collision Avoidance or electronic traffic sign, DSRC outperforms the 4G-LTE.

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Section: Introductionmentioning

confidence: 99%

DSRC versus 4G-LTE for Connected Vehicle Applications: A Study on Field Experiments of Vehicular Communication Performance

Zhao

et al. 2017

Journal of Advanced Transportation

210

120

View full text Add to dashboard Cite

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“…For the non-i.i.d. channel case stated in Theorem 8, we set λ i,d(i) = 1 while λ i,j and λ j,d(i) are generated for each j by following a uniform random distribution in the interval [1,2]. Assuming that the power levels of the source and its relays are identical, we compare these two lower bounds of the outage probability obtained based on Theorem 8 with the actual one obtained from the exact closed-form formulation (31) based on Theorems 5 and 6 as demonstrated in Fig.3b.…”

Section: A Outage Behavior Of Multi-relay Df Cooperative Communicationmentioning

confidence: 99%

“…Ecently, vehicular ad-hoc networks (VANETs) have attracted significant research interest because of their potential to leverage many significant telematic applications, including safety-oriented and entertainment applications, for traffic information and intelligent transportation systems [1], [2]. A generalized VANET, also called connected vehicles, comprises wireless communication links among vehicles and road-side access points (APs), and supports both vehicle-tovehicle (V2V) and vehicle-to-infrastructure (V2I) communications [3], [4].…”

mentioning

confidence: 99%

Self-Organized Relay Selection for Cooperative Transmission in Vehicular Ad-Hoc Networks

Tian

Zhou

Sheng

et al. 2017

IEEE Trans. Veh. Technol.

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Abstract-Cooperation is a promising paradigm to improve spatial diversity in vehicular ad-hoc networks. In this paper, we pose a fundamental question: how the greediness and selfishness of individual nodes impact cooperation dynamics in vehicular ad-hoc networks. We map the self-interest-driven relay selection decision-making problem to an automata game formulation and present a non-cooperative game-theoretic analysis. We show that the relay selection game is an ordinal potential game. A decentralized self-organized relay selection algorithm is proposed based on a stochastic learning approach where each player evolves toward a strategic equilibrium state in the sense of Nash. Furthermore, we study the exact outage behavior of the multi-relay decode-and-forward cooperative communication network. Closed-form solutions are derived for the actual outage probability of this multi-relay system in both independent and identically distributed channels and generalized channels, which need not assume an asymptotic or high signal-to-noise ratio. Two tight approximations with low computational complexity are also developed for the lower bound of the outage probability. With the exact closed-form outage probability, we further develop an optimization model to determine optimal power allocations in the cooperative network, which can be combined with the decentralized learning-based relay selection. The analysis of the exact and approximative outage behaviors and the convergence properties of the proposed algorithm toward a Nash equilibrium state are verified theoretically and numerically. Simulation results are also given to demonstrate that the resulting cooperative network induced by the proposed algorithm achieves high energy efficiency, transmission reliability, and network-wide fairness performance.Index Terms-Vehicular ad-hoc networks, cooperative communication, relay selection, outage probability, energy efficiency, noncooperative game.

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“…IEEE 802.11p forms the standard of Wireless Access for Vehicular Environments (WAVE), providing data rates ranging from 6 to 27 Mbps for short transmission distances [21]. As an alternative to the IEEE 802.11p-based vehicular ad hoc network (VANET), Long-Term Evolution (LTE) based V2V is supported by the Third-Generation Partnership Project (3GPP) so as to provide efficient message dissemination [22]. Nevertheless, the ever-growing demands for vehicular communications increase the gravity of tele-traffic congestion.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of NOMA-SM in Vehicle-to-Vehicle Massive MIMO Channels

Chen

Wang

et al. 2017

IEEE J. Select. Areas Commun.

153

104

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Abstract-At the time of writing, vehicle-to-vehicle (V2V) communication is enjoying substantial research attention as a benefit of its compelling applications. However, the ever-increasing teletraffic is expected to result in overcrowding of the available band. As a first resort, multiple-input multiple-output (MIMO) can be utilized to enhance the attainable bandwidth efficiency or link reliability. However, in hostile V2V wireless propagation environments the achievable multiple-antenna gain is eroded by the channel correlation. As a promising MIMO technique, spatial modulation (SM) only activates a single transmit antenna (TA) in any symbol-interval and hence completely avoids the inter-antenna interference (IAI), hence showing robustness against channel correlation. As a further powerful solution, non-orthogonal multiple access (NOMA) has been proposed for improving the bandwidth efficiency. Inspired by the robustness of SM against channel correlation and the benefits of NOMA, we intrinsically amalgamate them into NOMA-SM in order to deal with the deleterious effects of wireless V2V environments as well as to support improved bandwidth efficiency. Moreover, the bandwidth efficiency of NOMA-SM is further boosted with the aid of a massive TA configuration. Specifically, a spatiotemporally correlated Rician channel is considered for a V2V scenario. We investigate the bit error ratio (BER) performance of NOMA-SM via Monte Carlo simulations, where the impact of the Rician K-factor, spatial correlation of the antenna array, time-varying effect of the V2V channel, and the power allocation factor is discussed. Furthermore, we also analyse the capacity of NOMA-SM. By analysing the capacity and deriving closedform upper bounds on the capacity, a pair of power allocation optimization schemes are formulated. The optimal solutions are demonstrated to be achievable with the aid of our proposed algorithm. Again, instead of simply invoking a pair of popular techniques, we intrinsically amalgamate SM and NOMA to conceive a new system component exhibiting distinct benefits in the V2V scenarios considered.Index Terms-Spatial modulation (SM), non-orthogonal multiple access (NOMA), massive multiple-input multiple-output (MIMO), vehicle-to-vehicle (V2V), channel capacity, bit error ratio (BER).

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LTE-V: A TD-LTE-Based V2X Solution for Future Vehicular Network

Cited by 406 publications

References 14 publications

DSRC versus 4G-LTE for Connected Vehicle Applications: A Study on Field Experiments of Vehicular Communication Performance

DSRC versus 4G-LTE for Connected Vehicle Applications: A Study on Field Experiments of Vehicular Communication Performance

Self-Organized Relay Selection for Cooperative Transmission in Vehicular Ad-Hoc Networks

Performance Analysis of NOMA-SM in Vehicle-to-Vehicle Massive MIMO Channels

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