To better meet the challenge of providing effective, low-cost, energy efficient transport services, the concept of intelligent transport systems (ITS) has been proposed and lauded as an innovative and promising solution for next generation transport networks. In this paper, the progress of ITS research around the world is briefly reviewed and current challenges are outlined, thereby offering further insight into ITS development for all researchers in this area.
Abstract. A family of message propagation protocols for highly mobile ad-hoc networks is defined, and is studied analytically and by simulation. The coverage of a message (the fraction of nodes that receive it), can be made arbitrarily close to 1, at a moderate cost of extra message traffic. Under certain simplifying assumptions, it is shown that a high coverage is achieved by making a total of 0 ( n In n) broadcasts, where n is the number of nodes, and the time to propagate a message is O(ln n). The effect of various parameters on the protocol performance is examined.
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