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Drift: A Highly Condensed Emulation Framework for Mobile Nodes in Server Clusters
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BibTeX
@MISC{Zhang_drift:a,
author = {Xinyu Zhang and Baochun Li},
title = {Drift: A Highly Condensed Emulation Framework for Mobile Nodes in Server Clusters},
year = {}
}
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Abstract
Prototyping application-layer algorithms in wireless networks is a lengthy and challenging process, involving either programming within a specific simulation platform, or deploying a real testbed that is neither flexible nor scalable. In this paper, we present Drift, a highperformance wireless emulation testbed that takes advantage of the benefits of both simulation and real implementation, while trying to avoid their drawbacks. As a highly condensed emulation infrastructure, Drift makes it possible to rapidly develop and validate large-scale wireless network application-layer protocols within a cluster computing environment. Unlike existing emulation testbeds, Drift features a fully decentralized architecture, an efficient message processing unit, and more accurate network models for mobile wireless nodes. It balances the fundamental trade-off between scalability and emulation accuracy, focusing on maximizing scalability with minimal loss of accuracy. Through baseline comparison and extensive experiments, we find that Drift is able to accommodate thousands of emulated nodes per server host (in contrast to only tens of nodes typically seen in existing emulation tools), while maintaining comparable accuracy to packet level simulators. Drift will be released as an open source platform. 1.
Keyphrases
server cluster mobile node highly condensed emulation framework highperformance wireless emulation application-layer algorithm level simulator baseline comparison challenging process accurate network model emulation tool emulation accuracy emulated node specific simulation platform comparable accuracy present drift efficient message processing unit real testbed wireless network extensive experiment fundamental trade-off server host mobile wireless node condensed emulation infrastructure open source platform real implementation large-scale wireless network application-layer protocol minimal loss emulation testbeds
