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...d HSR [11] perform worse with Random Waypoint than with RPGM. Thus, it concluded that mobility models do matter and it is not sufficient to simulate protocols with only the “random walk” like models. =-=[12]-=- proposed a mobility framework that consisted of a Mobility Vector Model which can be used to generate “realistic” movement patterns used in several varied applications. It proposed the Displacement M...

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... by Camp et al in [6]. It included a variety of entity random mobility models used in ad hoc network simulations. It also covers group mobility models such as the reference point group mobility model =-=[10, 11]-=-. Of all available mobility models, the random waypoint model is perhaps the most extensively used [14, 5, 18, 12, 19]. It is implemented and widely distributed with the ns-2 [1] simulator. Most of th...

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...tion area, as well as decreases the average nodal speed over time [24, 25]. Recently, there have been a number of mobility models proposed as alternatives to the standard random waypoint model (e.g., =-=[26, 27, 19, 28, 29, 21, 30, 25]-=-). In general, the goal of these models is to increase the realism of random waypoint in particular settings. For example, Hong et al. [28] propose a group mobility model called Reference Point Group ...

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...nd HSR [14] perform worse with Random Waypoint than with RPGM. Thus, it concluded that mobility 3 models do matter and it is not sucient to simulate protocols with only the \random walk" like mod=-=els. [15] prop-=-osed a mobility framework that consisted of a Mobility Vector Model which can be used to generate \realistic" movement patterns used in several varied applications. It proposed the Displacement M...

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... within the terrain and moving towards it linearly with a velocity randomly selected from a specified range, and pausing there for a random period of time. However, in reality, nodes (i.e. MANET users) move with some purposes in mind (e.g., going from a conference room to a cafeteria) in addition to certain restrictions (e.g., geographical constraints) resulting in certain amount of determinism in their motion. In the light of growing need for more practical and realistic mobility modeling, a new line of research has emerged, focusing on several Entity based ([3], [4], [5]), Group based ([6], [7], [8]), and Scenario based ([9], [10], [11]) mobility models/frameworks. Entity based models are driven by individual node characteristics, while Group based models concentrate on the collective movement of a group of nodes that deviate marginally from the characteristics of a leader node. Alternately, Scenario based models account for the geographical constraints on real life movement. On parallel lines, the problem of routing in an ad hoc network has received significant attention from the research community, with numerous proposals for combating the undermining effect of mobility in ad hoc ...

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...on [25], and if at steady state, it is specified by the steady state variation which simulates speed drifts. This also ensures that a taxi speeds up and slows down gradually, respecting physical laws =-=[3, 16]-=-, at appropriate times. Further constraints on the taxi movements are imposed by the speed limit of the lane [3] (set to be 15m/s), previous taxis in the same lane [1] and traffic lights. We assume tr...

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...time-varying radio environment and node mobility. There has been a large number of studies examining the effect of node mobility on link dynamics, such as link lifetime [1]–[5], link change rate [3], =-=[6]-=-, link residual time and link availability [3], [5], [7], [8]. The main results in previous studies include: i) There exists a peak in the link lifetime distribution based on random mobility models [1...