Improving Emulation of Wireless Access Networks in ns-2

Abstract

The network simulator ns-2 [1] provides mechanisms to route live network traffic through its simulation and thus emulate a network in real-time. However, it lacks certain core features for emulation networks with mobile terminals: roaming of terminals across base stations, and hence dynamic addressing of nodes. An infrastructure routing protocol (INFRA) is presented, as well as an additional tap network object and a tap-dyn agent that were required to unleash all capabilities of the new routing protocol.