TWINE: A Hybrid Emulation Testbed for Wireless Networks and Applications

In this paper, we present a high fidelity and efficient emulation framework called TWINE, which combines the accuracy and realism of emulated and physical networks and the scalability and repeatability of simulation in an integrated testbed, for evaluation of real protocols and applications. Our measurements show that the TWINE emulation kernel has a memory footprint of less than 100KB, and occupies no more than 3.5% CPU cycles. Thanks to such small overhead and the accurate modelling of physical layer events(at microseconds level), application throughput measured in TWINE is within 5% of the measured throughput from an equivalent physical wireless LAN. A single commodity PC in TWINE can emulate at least four wireless hosts or simulate sixty nodes in real time at microseconds granularity. This paper also illustrates TWINE’s novel capabilities via two case studies: a protocol to maintain fairness in mesh networks and an adaptive streaming media application operating in heterogeneou...

• Type: Conference
• Year: 2006
• Where: INFOCOM
• Authors: Junlan Zhou, Zhengrong Ji, Rajive Bagrodia
• Keywords: Communications, Framework Called Twine, INFOCOM 2006, TWINE, TWINE Emulation Kernel