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This paper addresses the issue of real‐time data transmission in vehicles to roadside environment by the hybrid coordination function controlled channel access (HCCA) scheme with Institute of Electrical and Electronics Engineers 802.11p protocol. The HCCA is one of the medium access protocols specified in 802.11p standard, which uses a polling scheme similar to the point coordination function to provide...
Now the mainly research on the protocol of mobile vehicle network is based on connected networks. But this method has its limitations. The majority nodes in this network have the constraint that they have sufficient density and moderate mobility. In fact, the nodes in highway environment have very high speed and the network topology changes very quickly. This makes the link between nodes instability...
Selfish behavior at the MAC (medium access control) layer can have devastating side effects on the performance of wireless ad hoc networks. In this work, we consider the problem of detecting selfish behavior at the MAC layer in IEEE 802.11 wireless networks when a selfish node can manipulate the backoff operation. We propose a simple and robust mechanism based on CUSUM (cumulative sum) test by tracing...
Research on selfish nodes in wireless ad hoc networks has received considerable attention recently. However, most work concentrates on throughput study of the effects of selfish nodes, but lacks an analytical study to accurately predict the delay. With the rising popularity of delay-sensitive real-time multimedia applications (video, voice and data) in wireless ad hoc networks, it is becoming important...
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