Optimal Capacity–Delay Delay Tradeoff in MANETs With Correlation of Node Mobility
Abstract: In this paper, we analyze the capacity and delay in mobile ad hoc networks (MANETs), considering the correlation of node mobility (correlated mobility). Previous studies on correlated mobility investigated the maximum capacity with the corresponding delay in several subcases; the problem of optimal capacity under various delay constraints (the optimal capacity capacity-delay delay tradeoff) still remains open. To this end, we deeply explore the characteristics of correlated mobility and figure out the fundamental relation relationships ships between the network performance and the scheduling parameters. Based on that, we establish the overall upper bound of the capacity-delay delay tradeoff in all the subcases of correlated mobility. Then, we try to obtain the achievable lower bound by identif identifying ying the optimal scheduling parameters on certain constraints. Results demonstrate the whole picture of how the correlation of node mobility impacts the capacity, the delay, and the corresponding tradeoff between them.