Ns-3-based real-time emulation of LTE testbed using LabVIEW platform for software defined networking (SDN) in CROWD project

Rohit Gupta, Bjoern Bachmann, Russell Ford, Sundeep Rangan, Nikhil Kundargi, Amal Ekbal, Karamvir Rathi, Maria Isabel Sanchez, Antonio De La Oliva, Arianna Morelli

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper, we present initial results on how the NS-3 LTE LENA stack is used to build a LTE testbed in an indoor lab network. We have extended the NS-3 MAC/PHY layer architecture to interface with a LabVIEW implementation of the LTE Physical layer and also extended NS-3 core modules to enable real-time performance. We present how this testbed can be used for prototyping a novel Software Defined Networking (SDN) scheme for interference management within dense heterogeneous deployments of cellular wireless networks. We provide an example case study for a Distributed Mobility Management (DMM) implementation using this testbed, where we demonstrate mobility of a emulated User Equipment device between LTE and WiFi networks. We plan to use this testbed for validation and demonstration of various SDN-based algorithms proposed within the framework of the EU FP7 CROWD (Connectivity management for eneRgy Optimised Wireless Dense networks) Project. We believe the proposed testbed is especially valuable for studying the cross-layer performance of cellular PHY/MAC algorithms in a realistic environment and shows how NS-3 can be used as a unified prototyping and simulation framework for wireless networks. Copyright is held by the owner/author(s).

Original languageEnglish (US)
Title of host publicationWNS3 2015 - Workshop on Network Simulator-3
PublisherAssociation for Computing Machinery
Number of pages7
ISBN (Electronic)9781450333757
StatePublished - May 13 2015
Event2015 Workshop on NS-3, WNS3 2015 - Castelldefels, Barcelona, Spain
Duration: May 13 2015May 14 2015

Publication series

NameACM International Conference Proceeding Series


Other2015 Workshop on NS-3, WNS3 2015
CityCastelldefels, Barcelona


  • Hardware emulation
  • LTE
  • LabVIEW
  • NS-3
  • Simulation
  • Software-Defined Networking
  • Software-Defined Radio

ASJC Scopus subject areas

  • Software
  • Human-Computer Interaction
  • Computer Vision and Pattern Recognition
  • Computer Networks and Communications


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