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This paper presents a profile based modeling method for generation of realistic mobility pattern for vehicles. It is assumed the profile of the motion of vehicles has a Gaussian profile with different parameters. A driver, first, selects the source, destination and his path and then, selects a profile accordingly. This paper also addresses the issues of lane changing, overtaking, selection of profile...
In this paper, the impact of the knowledge of non local traffic state through vehicular ad hoc network (VANET) communication on traffic stability is studied through microscopic traffic simulation. In particular, the effect of this communication through modification of driver behavior is evaluated. Intra-driver behavior such as non negligible reaction time, anticipation, limited attention spans and...
This paper addresses the problem of sustaining the privacy of a vehicle in a vehicular ad hoc network (VANET). In a VANET, vehicles broadcast information as they move on the road. The location of a vehicle can estimated using localization techniques and its identity can be read from its messages. A link can be established between the physical vehicle through localization and its identity is a threat...
A vehicle can be tracked through its locatable transmission. The broadcast by a source contains its current identity and also allows estimation of its location by a receiver. This possibility of mapping between the physical entity and the estimated location through the communication broadcast is a threat to privacy. The changes in the location due to motion and the alteration in the temporal identifiers...
As a vehicle moves on the road and communicates with other vehicles or road side units, communication identity and physical identity may be linked by estimating its position. This is threat to its privacy. However, as it moves its location changes. This breaks the correlation between the vehicle and its location. The change in location also changes the neighborhood of the vehicle. This change in size...
This paper presents a medium access protocol for spread spectrum networks. We have focus on the use of the protocol in MANETs to increase the throughput of the network. We focus on the use of the protocol in mobile ad-hoc networks (MANETs) to increase the throughput of the network. The existing IEEE 802.11 MAC protocol uses spread spectrum technique at the physical layer. However, it uses the same...
In this paper, we study group signature scheme for privacy preservation of a continually transmitting mobile vehicle. A moving vehicle transmits and receives different types of messages on the road. Such communication is a threat to the privacy of a vehicle as its communication can be used to link its identity to its physical entity. The change of size and nature of the neighborhood of a moving vehicle...
Stream Control Transmission Protocol (SCTP) is newly emerged protocol, which is combination of good qualities of TCP and UDP. It is a reliable message oriented protocol providing multistreaming and multihoming. In this paper, a modified algorithm is proposed for dealing multiple packet losses which improves congestion control mechanism in network. Proposed SCTP is a simple sender side alteration to...
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