{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,31]],"date-time":"2025-12-31T12:19:06Z","timestamp":1767183546332,"version":"3.41.0"},"reference-count":29,"publisher":"Association for Computing Machinery (ACM)","issue":"1","license":[{"start":{"date-parts":[[2015,1,20]],"date-time":"2015-01-20T00:00:00Z","timestamp":1421712000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":["SIGOPS Oper. Syst. Rev."],"published-print":{"date-parts":[[2015,1,20]]},"abstract":"<jats:p>A commonly used technique for evaluating and comparing the performance of systems using 802.11 (WiFi) networks is to conduct experiments. This approach is appealing and important because it inherently captures critical properties of wireless signal transmission that are difficult to analytically model and simulate. Unfortunately, obtaining consistent and statistically meaningful empirical results using 802.11 networks, even in well-controlled environments, can be quite challenging and time consuming because channel conditions can vary over time.<\/jats:p>\n          <jats:p>In this paper, we use 2.4 and 5 GHz 802.11n MIMO networks to study different methodologies that could be used to evaluate and compare the performance of different alternatives used in 802.11 systems (e.g., different systems, configurations or algorithms). We first illustrate that some of the more commonly used methods in existing research are flawed and explain why. We then describe a methodology called multiple interleaved trials that, to our knowledge, has not been used for, or studied on, 802.11 networks. We evaluate this methodology and find that it can be used to repeat experiments and to compare the performance of different alternatives. Finally, we discuss other possible applications of this approach for comparative performance evaluations.<\/jats:p>","DOI":"10.1145\/2723872.2723879","type":"journal-article","created":{"date-parts":[[2015,1,28]],"date-time":"2015-01-28T14:05:51Z","timestamp":1422453951000},"page":"41-50","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":17,"title":["Conducting Repeatable Experiments and Fair Comparisons using 802.11n MIMO Networks"],"prefix":"10.1145","volume":"49","author":[{"given":"Ali","family":"Abedi","sequence":"first","affiliation":[{"name":"University of Waterloo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrew","family":"Heard","sequence":"additional","affiliation":[{"name":"University of Waterloo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tim","family":"Brecht","sequence":"additional","affiliation":[{"name":"University of Waterloo"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2015,1,20]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1109\/TRIDNT.2005.9"},{"key":"e_1_2_1_2_1","volume-title":"RF in the jungle: Effect of environment assumptions on wireless experiment repeatability,\" in ICC","author":"Burchfield R.","year":"2009","unstructured":"R. Burchfield , E. Nourbakhsh , J. Dix , K. Sahu , S. Venkatesan , and R. Prakash , \" RF in the jungle: Effect of environment assumptions on wireless experiment repeatability,\" in ICC , 2009 . R. Burchfield, E. Nourbakhsh, J. Dix, K. Sahu, S. Venkatesan, and R. Prakash, \"RF in the jungle: Effect of environment assumptions on wireless experiment repeatability,\" in ICC, 2009."},{"key":"e_1_2_1_3_1","volume-title":"Using emulation to understand and improve wireless networks and applications,\" in NSDI","author":"Judd G.","year":"2005","unstructured":"G. Judd and P. Steenkiste , \" Using emulation to understand and improve wireless networks and applications,\" in NSDI , 2005 . G. Judd and P. Steenkiste, \"Using emulation to understand and improve wireless networks and applications,\" in NSDI, 2005."},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11036-008-0048-2"},{"key":"e_1_2_1_5_1","volume-title":"Mint-m: An autonomous mobile wireless experimentation platform,\" in MobiSys","author":"De P.","year":"2006","unstructured":"P. De , A. Raniwala , R. Krishnan , K. Tatavarthi , J. Modi , N. A. Syed , S. Sharma , and T. Chiueh , \" Mint-m: An autonomous mobile wireless experimentation platform,\" in MobiSys , 2006 . P. De, A. Raniwala, R. Krishnan, K. Tatavarthi, J. Modi, N. A. Syed, S. Sharma, and T. Chiueh, \"Mint-m: An autonomous mobile wireless experimentation platform,\" in MobiSys, 2006."},{"key":"e_1_2_1_6_1","doi-asserted-by":"crossref","unstructured":"O. Rensfelt F. Hermans P. Gunningberg and L.-A. Larzon \"Repeatable experiments with mobile nodes in a relocatable WSN testbed \" in DCOSSW 2010.  O. Rensfelt F. Hermans P. Gunningberg and L.-A. Larzon \"Repeatable experiments with mobile nodes in a relocatable WSN testbed \" in DCOSSW 2010.","DOI":"10.1109\/DCOSSW.2010.5593278"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11036-010-0227-9"},{"key":"e_1_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.1145\/1859995.1860025"},{"key":"e_1_2_1_9_1","volume-title":"Joint rate and channel width adaptation for 802.11 MIMO wireless networks,\" in SECON","author":"Deek L.","year":"2013","unstructured":"L. Deek , E. Garcia-Villegas , E. Belding , S.-J. Lee , and K. Almeroth , \" Joint rate and channel width adaptation for 802.11 MIMO wireless networks,\" in SECON , 2013 . L. Deek, E. Garcia-Villegas, E. Belding, S.-J. Lee, and K. Almeroth, \"Joint rate and channel width adaptation for 802.11 MIMO wireless networks,\" in SECON, 2013."},{"key":"e_1_2_1_10_1","doi-asserted-by":"publisher","DOI":"10.1145\/2619239.2626301"},{"key":"e_1_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.1145\/1161089.1161107"},{"key":"e_1_2_1_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-12963-6_13"},{"key":"e_1_2_1_13_1","doi-asserted-by":"publisher","DOI":"10.1145\/2068816.2068830"},{"key":"e_1_2_1_14_1","volume-title":"On link rate adaptation in 802.11n WLANs,\" in INFOCOM","author":"Lakshmanan S.","year":"2011","unstructured":"S. Lakshmanan , S. Sanadhya , and R. Sivakumar , \" On link rate adaptation in 802.11n WLANs,\" in INFOCOM , 2011 . S. Lakshmanan, S. Sanadhya, and R. Sivakumar, \"On link rate adaptation in 802.11n WLANs,\" in INFOCOM, 2011."},{"key":"e_1_2_1_15_1","doi-asserted-by":"publisher","DOI":"10.1145\/2348543.2348585"},{"key":"e_1_2_1_16_1","doi-asserted-by":"publisher","DOI":"10.1145\/2079296.2079305"},{"key":"e_1_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1145\/1614320.1614342"},{"key":"e_1_2_1_18_1","doi-asserted-by":"crossref","unstructured":"D. Gupta D. Wu P. Mohapatra and C.-N. Chuah \"Experimental comparison of bandwidth estimation tools for wireless mesh networks \" in INFOCOM 2009.  D. Gupta D. Wu P. Mohapatra and C.-N. Chuah \"Experimental comparison of bandwidth estimation tools for wireless mesh networks \" in INFOCOM 2009.","DOI":"10.1109\/INFCOM.2009.5062253"},{"key":"e_1_2_1_19_1","volume-title":"T-RATE: A framework for the trace-driven evaluation of 802.11 rate adaptation algorithms,\" in MASCOTS","author":"Abedi A.","year":"2014","unstructured":"A. Abedi and T. Brecht , \" T-RATE: A framework for the trace-driven evaluation of 802.11 rate adaptation algorithms,\" in MASCOTS , 2014 . A. Abedi and T. Brecht, \"T-RATE: A framework for the trace-driven evaluation of 802.11 rate adaptation algorithms,\" in MASCOTS, 2014."},{"key":"e_1_2_1_20_1","doi-asserted-by":"publisher","DOI":"10.1145\/2079296.2079307"},{"key":"e_1_2_1_21_1","unstructured":"AirMagnet \"Fluke networks.\" http:\/\/www.flukenetworks.com\/enterprisenetwork\/wireless-network\/AirMedic.  AirMagnet \"Fluke networks.\" http:\/\/www.flukenetworks.com\/enterprisenetwork\/wireless-network\/AirMedic."},{"key":"e_1_2_1_22_1","unstructured":"IPerf. http:\/\/sourceforge.net\/projects\/iperf\/.  IPerf. http:\/\/sourceforge.net\/projects\/iperf\/."},{"key":"e_1_2_1_23_1","doi-asserted-by":"publisher","DOI":"10.1145\/2348543.2348551"},{"key":"e_1_2_1_24_1","volume-title":"Design and Analysis of Experiments","author":"Montgomery D.","year":"2012","unstructured":"D. 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