Delay and capacity in MANETs under random walk mobility model
Wireless Networks
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The lack of available and practical analysis about some regular knowledge of mobility models has limit their applications to mobile ad hoc networks. As the mobility models have the great significance effects on the network performance, and meanwhile, existing in-depth researches are mostly based on the i.i.d. mobility model which is a way of globe move, the desire for the effective and reasonable applications of the two-hop relay algorithms to other more realistic mobility models contributes to this paper. We focus on a time-slotted finite network system in order to simplify the complex probabilistic description process of the non-i.i.d. mobility models and we develop some general probability analysis under various mobility solutions. We further put forward some conditions that can make the behaviors of the special mobility models approximately equivalent to that of the i.i.d mobility model. Related simulation studies are also conducted to demonstrate that the different mobility models might have similar influences on the capacity and delay of a mobile ad hoc network.