Research and Analysis of Topology Control in NS-2 for Ad-hoc Wireless Network

Topology control is an effective measure at network layer to implement power control for energy-saving, which is a critical issue in ad-hoc wireless networks. Topology control also affects other significant performances of network, such as packet delivery radio, end-to-end delay, and network capacity etc. Various techniques and algorithms have been proposed to achieve the optimal topology which can minimize the energy consumption and optimize the network performance. Almost all the algorithms are evaluated with simulations. However, most of the simulations in current literature are performed in static scenarios; very few refer to dynamic topology control which can reflect the real situation better. In this article, we study the topology control for both the static and dynamic scenarios in ns-2 for ad-hoc network, and two models of topology are considered correspondingly. Besides, a topology control algorithm is proposed and we analyze the simulation results, comparing with the network without topology control. The results indicate that the performances of network with topology control are improved to some extent.