Power-Rate adaptation in high-mobility distributed ad-hoc wireless networks

Ruffini, Marco; Reumerman, H.-J.

doi:10.1109/vetecs.2005.1543745

Cited by 20 publications

(13 citation statements)

References 4 publications

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“…In some existing solutions, the feedback is implicitly obtained from received messages without the need to transmit extra information. An example of closed-loop solution with implicit feedback is the work in [34], in which the authors propose the use of the received messages to estimate in real-time the path loss or average signal attenuation, by subtracting the power estimated at the receiver from the transmitted power (included by default in the header of all beacons in cooperative vehicular systems). The proposed algorithm dynamically selects the power and data rate required to successfully transmit a packet to a given vehicle, while minimising the interference generated to other vehicles.…”

Section: A Related Workmentioning

confidence: 99%

Congestion and Awareness Control in Cooperative Vehicular Systems

et al. 2011

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Abstract-Cooperative vehicular systems have been identified as a promising solution to overcome the current and future needs for increasing traffic safety and efficiency, while providing infotainment and added-value services on the move. To achieve their objectives, cooperative vehicular systems will be based on wireless communications between vehicles and with other infrastructure nodes, and will have to deal with highly dynamic nodes, challenging propagation conditions, and stringent application requirements. By looking at cooperative applications and their data traffic, as well as the current and foreseen spectrum allocations for cooperative vehicular systems, there is a risk that the corresponding radio channels could easily be saturated if no control algorithms are used. The saturation of the radio channels would result in unstable vehicular communications, and thus in an inefficient operation of cooperative systems. As a prime example of upcoming ubiquitous networks contributing to the vision of "a thousand radios per person", cooperative vehicular systems need to be designed to scale to high densities of radios without centralized coordination, while at the same time guaranteeing the requirements of the implemented applications and services, for example the stringent needs of active traffic safety applications. In this paper, we survey and classify various decentralized methods to control the load on the radio channels and to ensure each vehicle's capacity to detect and communicate with the relevant neighbouring vehicles, with a particular focus on approaches based on transmit power and rate control. Finally, we discuss the open research challenges that are imposed by different application requirements and potential existing contradictions.

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Section: A Related Workmentioning

confidence: 99%

Congestion and Awareness Control in Cooperative Vehicular Systems

et al. 2011

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“…For that reason, a detailed urban micro-cell propagation model developed in the WINNER project [8] that considers pathloss, shadowing and multipath fading has been implemented. Despite not being developed for V2V communications, the operating conditions of the WINNER urban micro-cell model are to the authors' knowledge those that currently best fit the system level V2V communications scenario 1 . Moreover, despite considerable progress in V2V channel modeling, to the authors' knowledge there is currently no complete system level V2V channel model that considers all radio propagation effects.…”

Section: Opportunistic-driven Transmission Techniquesmentioning

confidence: 99%

“…For example, it has been proposed to adapt the transmission power level to mitigate interferences [1] or maintain the network connected [2]. Other works, such as [3], present interesting approaches to reorganize the information to be transmitted based on its relevance and the vehicle's situation to improve the system performance and scalability.…”

Section: Introductionmentioning

confidence: 99%

Optimizing Adaptive Transmission Policies for Wireless Vehicular Communications

Sepulcre¹,

Gozálvez²

2008

2008 IEEE 68th Vehicular Technology Conference

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Abstract-The adoption of wireless vehicular communication technologies would strongly depend on the technologies transmission reliability, required by QoS demanding traffic safety applications, and the system's scalability as the technology is gradually introduced. To this aim, this work proposes the use of opportunistic transmission policies that dynamically adapt the transmission parameters based on the operating conditions and potential traffic safety risks. The work analyses different configuration proposals with the aim to meeting the strong traffic safety QoS requirements, while maximizing the technology's robustness and minimising channel congestion, which in turn is crucial to guarantee the future system's scalability.

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“…For example, the work in [1] proposed to adapt the transmission power level and other transmission parameters to reduce interference and increase the overall packet delivery ratio. The authors in [2] proposed a similar adaptation to increase the vehicular network connectivity.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Wireless Vehicular Communication Techniques under Correlated Radio Channels

Sepulcre

Gozálvez

2009

VTC Spring 2009 - IEEE 69th Vehicular Technology Conference

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Abstract-Wireless vehicular communication systems require the design and implementation of robust and efficient communication policies to provide the strict quality of service needed by traffic safety applications while guaranteeing the system's scalability. To efficiently guarantee such requirements, the authors have developed an opportunistic-driven adaptive radio resource management mechanism that adapts the transmission parameters based on the operating conditions and traffic safety requirements. Since the performance of adaptive communication techniques can be importantly influenced by channel correlation, this work proposes several compensation policies that allow the proposed opportunistic mechanism to efficiently meet the traffic safety quality of service requirements even under correlated radio channels.

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Power-Rate adaptation in high-mobility distributed ad-hoc wireless networks

Cited by 20 publications

References 4 publications

Congestion and Awareness Control in Cooperative Vehicular Systems

Congestion and Awareness Control in Cooperative Vehicular Systems

Optimizing Adaptive Transmission Policies for Wireless Vehicular Communications

Adaptive Wireless Vehicular Communication Techniques under Correlated Radio Channels

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