29-08-2017, 12:06 PM
The production capacity in ad hoc mobile networks has been studied extensively under many different mobility models. However, most of the earlier research assumes global mobility, and the results show that a consistent per-node performance can be achieved at the cost of a very high delay. Therefore, we are having a very large gap here, ie either low performance and low delay in static networks or high performance and high delay in mobile networks. In this paper, using a practical model of restricted random mobility, we try to fill this void. Specifically, we assume that a unit-area network with n nodes is evenly divided into cells with an area of n-2α, each of which is uniformly divided into squares with an area of n-2β (0≤ α ≤ β ≤1 / 2). All nodes can only be moved within the cell in which they are initially distributed and at the beginning of each time interval, each node moves from its current square to a uniformly chosen point in an evenly selected adjacent square. When proposing a new multi-spindle retransmission scheme, we present a balance between performance and delay when controlling the mobility of nodes. We also consider a network of area nγ (0 ≤ γ ≤ 1) and find that the size of the network does not affect the results obtained before.