Quality-of-Service Driven Power and Sub-Carrier Allocation Policy for Vehicular Communication Networks

2011 ◽  
Vol 29 (1) ◽  
pp. 197-206 ◽  
Author(s):  
Haixia Zhang ◽  
Yanbo Ma ◽  
Dongfeng Yuan ◽  
Hsiao-Hwa Chen
Keyword(s):  
Quality Of Service ◽  
Communication Networks ◽  
Vehicular Communication ◽  
Allocation Policy ◽  
Vehicular Communication Networks

scholarly journals Quality Utilization Aware Based Data Gathering for Vehicular Communication Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-25 ◽  
Author(s):  
Yingying Ren ◽  
Anfeng Liu ◽  
Ming Zhao ◽  
Changqin Huang ◽  
Tian Wang
Keyword(s):  
Data Collection ◽  
Communication Networks ◽  
Data Gathering ◽  
Quality Data ◽  
Vehicular Communication ◽  
Sensing Data ◽  
Fine Grained ◽  
Vehicular Communication Networks ◽  
The Cost

The vehicular communication networks, which can employ mobile, intelligent sensing devices with participatory sensing to gather data, could be an efficient and economical way to build various applications based on big data. However, high quality data gathering for vehicular communication networks which is urgently needed faces a lot of challenges. So, in this paper, a fine-grained data collection framework is proposed to cope with these new challenges. Different from classical data gathering which concentrates on how to collect enough data to satisfy the requirements of applications, a Quality Utilization Aware Data Gathering (QUADG) scheme is proposed for vehicular communication networks to collect the most appropriate data and to best satisfy the multidimensional requirements (mainly including data gathering quantity, quality, and cost) of application. In QUADG scheme, the data sensing is fine-grained in which the data gathering time and data gathering area are divided into very fine granularity. A metric named “Quality Utilization” (QU) is to quantify the ratio of quality of the collected sensing data to the cost of the system. Three data collection algorithms are proposed. The first algorithm is to ensure that the application which has obtained the specified quantity of sensing data can minimize the cost and maximize data quality by maximizing QU. The second algorithm is to ensure that the application which has obtained two requests of application (the quantity and quality of data collection, or the quantity and cost of data collection) could maximize the QU. The third algorithm is to ensure that the application which aims to satisfy the requirements of quantity, quality, and cost of collected data simultaneously could maximize the QU. Finally, we compare our proposed scheme with the existing schemes via extensive simulations which well justify the effectiveness of our scheme.

Simulation modeling of packet switching network segment functioning

2019 ◽  
pp. 75-82
Author(s):  
D. V. Shelkovoy ◽  
A. A. Chernikov
Keyword(s):  
Quality Of Service ◽  
Communication Networks ◽  
Simulation Modeling ◽  
Data Stream ◽  
Switching Network ◽  
Data Packets ◽  
Channel Resource ◽  
Switching Node ◽  
Joint Examination

The testing results of required channel resource mathematical estimating models for the for serving the proposed multimedia load in packet-switched communication networks are presented in the article. The assessment of the attainable level of quality of service at the level of data packet transportation was carried out by means of simulation modeling of the functioning of a switching node of a communication network. The developed modeling algorithm differs from the existing ones by taking into account the introduced delay for processing each data stream packet arriving at the switching node, depending on the size of the reserved buffer and the channel resource for its maintenance. A joint examination of the probability of packet loss and the introduced delay in the processing of data packets in the border router allows a comprehensive assessment of the quality of service «end to end», which in turn allows you to get more accurate values of the effective data transmitted rate by aggregating flows at the entrance to the transport network.

scholarly journals Securing Vehicle Communication Systems by the KLJN Key Exchange Protocol

2014 ◽  
Vol 13 (03) ◽  
pp. 1450020 ◽  
Author(s):  
Y. Saez ◽  
X. Cao ◽  
L. B. Kish ◽  
G. Pesti
Keyword(s):  
Communication Networks ◽  
Communication Systems ◽  
Security Requirements ◽  
Communication Security ◽  
Vehicular Communication ◽  
Johnson Noise ◽  
Key Exchange Protocol ◽  
Communication Architecture ◽  
Vehicle Communication ◽  
Vehicular Communication Networks

We review the security requirements for vehicular communication networks and provide a critical assessment of some typical communication security solutions. We also propose a novel unconditionally secure vehicular communication architecture that utilizes the Kirchhoff-law–Johnson-noise (KLJN) key distribution scheme.

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