CLIFT: A Cross-Layer InFormation Tool to Perform Cross-Layer Analysis Based on Real Physical Traces

Considering real PHYsical (MAC/PHY) traces inside network simulations is a complex task that might lead to complex yet approximated models. However, realistic cross-layer analysis with the upper layer and in particular the transport layer cannot be driven without considering the MAC/PHY level. In this paper, the authors propose to cope with this problem by introducing a software that translates real physical events from a given trace in order to be used inside a network simulator such as ns-2. The main objective is to accurately perform analysis of the impact of link layer reliability schemes (obtained by the use of real physical traces) on transport layer performance.