Computer Networking Lecture 5 – testbeds and simulation

2 Readings [G.1] On the accuracy of manet simulators. David Cavin, Yoav Sasson, and André Schiper, Workshop on Principles of Mobile Computing (POMC'02), pages ACM, October 2002.On the accuracy of manet simulators [G.4] Using Emulation to Understand and Improve Wireless Networks and Applications, Glenn Judd and Peter Steenkiste, Proceedings of NSDI 2005Using Emulation to Understand and Improve Wireless Networks and Applications [H.3] "Overview of the ORBIT Radio Grid Testbed for Evaluation of Next-Generation Wireless Network Protocols," D. Raychaudhuri, I. Seskar, M. Ott, S. Ganu, K. Ramachandran, H. Kremo, R. Siracusa, H. Liu and M. Singh, To appear at the Wireless Communications and Networking Conference (WCNC'05) March 2005.Overview of the ORBIT Radio Grid Testbed for Evaluation of Next-Generation Wireless Network Protocols

3 Optional [G.2] Experimental evaluation of wireless simulation assumptions. David Kotz and Calvin Newport and Robert S. Gray and Jason Liu and Yougu Yuan and Chip Elliott. Technical Report TR , Dept. of Computer Science, Dartmouth College, June, 2004.Experimental evaluation of wireless simulation assumptions 7 axioms of different errors that wireless simulators make 0: The world is flat. 1: A radio’s transmission area is circular. 2: All radios have equal range. 3: If I can hear you, you can hear me (symmetry). 4: If I can hear you at all, I can hear you perfectly. 5: Signal strength is a simple function of distance. 6: Each packet is transmitted at the same bit rate. [H.4] Design Considerations for a Multi-hop Wireless Network Testbed, Pradipta De, Ashish Raniwala, Srikant Sharma, and Tzi-cker ChiuehDesign Considerations for a Multi-hop Wireless Network Testbed Good overview/summary of different testbeds and their properties

4 Optional [H.1] "A Large-scale Testbed for Reproducible Ad hoc Protocol Evaluations", H. Lundgren, D. Lundberg, J. Nielsen, E. Nordström, C. Tschudin, WCNC 2002."A Large-scale Testbed for Reproducible Ad hoc Protocol Evaluations" APE system – relies on careful choreography of users [H.2] Lowering the Barrier to Wireless and Mobile Experimentation, Brian White, Jay Lepreau, Shashi Guruprasad, ACM HotNets-I, October 2002.Lowering the Barrier to Wireless and Mobile Experimentation Emulab converted to wireless Nice emulab interface but simulation is specific to deployment [H.3] "Overview of the ORBIT Radio Grid Testbed for Evaluation of Next- Generation Wireless Network Protocols," D. Raychaudhuri, I. Seskar, M. Ott, S. Ganu, K. Ramachandran, H. Kremo, R. Siracusa, H. Liu and M. Singh, To appear at the Wireless Communications and Networking Conference (WCNC'05) March 2005.Overview of the ORBIT Radio Grid Testbed for Evaluation of Next- Generation Wireless Network Protocols Nice indoor, dense, mesh deployment testbed [H.5] "Wireless Link SNR Mapping Onto an Indoor Testbed," J. Lei, R. Yates, L. Greenstein and H. Liu, Submitted to IEEE Tridentcom 2005Wireless Link SNR Mapping Onto an Indoor Testbed, [G.3] WhyNet description (focus on hybrid testbed methodology), available at Not much here – but one of the well known planned testbeds