MobiCom 2004 Demo Poster

1
PRAN Physical Implementation and Evaluation of
Ad Hoc Network Routing Protocols using Unmodified
Simulation Models http//monarch.cs.rice.edu/ Amit
Saha, Khoa To, Santashil PalChaudhuri, Shu Du,
and David B. Johnson amsaha,takhoa,santa,dushu,db
j_at_cs.rice.edu
System Architecture
Testbed Evaluation
Motivation

• Simulators of ad hoc network protocols fail to
  capture complex behaviors of wireless systems
• Physical implementations, on the other hand, are
  resource-intensive and not easily upgradeable

Problem Statement

• Testbed implementation of ad hoc network
  protocols using unmodified ns-2 simulation code
• Protocol DSR AODV
• Operating system Linux FreeBSD
• Application Robot control through Microsoft
  NetMeeting

• Design of a system that allows existing
  simulation models to be used without
  modification to create a physical
  implementation of the same protocol.

• Minimal kernel modifications protocol-independent
  code to link simulation module to wireless
  medium
• Simple converter protocol-specific module to
  translate packets between native and
  simulation-code formats
• Unmodified simulation code allow identical
  processing of packets between simulation and
  testbed environments

Research Impact

• Reduce programming effort by allowing a single
  code to exist in both simulation and physical
  implementation
• Allow more accurate validations of new ad hoc
  network routing protocols by testing them on real
  physical networks
• Allow quick deployment of experimental ad hoc
  network routing protocols by utilizing existing
  simulation code on physical networks

MobiCom Demo Configuration
Base station 1
Robot 2
Robot-2 Controller Monitor
Robot-1 Controller Monitor