Manhattan mobility model

The Manhattan mobility model is a guide which leads the driver of a vehicle on the correct path. It is an urban type of mobility model for vehicular ad-hoc networks (VANET). The Manhattan mobility model uses a "grid road topology. It works optimally where streets are in an organized manner.

In this mobility model, mobile nodes move in horizontal or vertical direction on an urban map. The Manhattan model employs a probabilistic approach in the selection of nodes movements since, at each intersection, a vehicle chooses to keep moving in the same direction. The probability of going straight is 0.5 and taking a left or right is 0.25 each.

The Manhattan model is not suitable for highway systems. Although this model provides flexibility for the nodes to change the direction, it imposes geographic restrictions on node mobility.

Important Characteristics of the Manhattan Mobility model

 * The mobile node is allowed to move along the grid of horizontal and vertical streets on the map.
 * At an intersection of a horizontal and a vertical street, the mobile node can turn left, right or go straight with certain probability.
 * Excepting the above difference, the inter-node and intra-node relationships involved in the Manhattan model are the same as in the Freeway model.