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Grayspace operations are particularly interesting when other unlicensed bands are overcrowded, for example, due to high-volume WiFi operations. We simulate the operational characteristics of the recent IEEE 802.15.4m standard for low-rate wireless personal area networks to evaluate the performance degradation of an incumbent Digital Video Broadcasting - Terrestrial (DVB-T) system if a secondary network of low-power low-rate devices are co-deployed in the same frequency bands. Our results show that short sensor messages will not disrupt the DVB-T service due to the existing error-correction capabilities. Furthermore, if sufficient separation distances to primary transmitters are maintained, transmit powers are sufficient to achieve reasonable connectivity levels of the secondary network. In order to obtain realistic figures on the predicted feasibility of grayspace sensor networks, we study the deployment constraints of a hypothetical secondary network co-located with the TV broadcasting network of Germany. Our analysis shows that if we aim to support a minimum sensor-sensor distance, no universal coverage can be maintained in this country. While our quantitative results are specific to Germany, we deem them indicative for the expected results also in other potential deployments. We found that while a secondary wireless sensor network in TVGS is technically possible, the necessary constraints on operational parameters and service levels for TVGS co-existence will significantly limit its practical viability.<\/jats:p>","DOI":"10.1145\/3021499","type":"journal-article","created":{"date-parts":[[2017,1,27]],"date-time":"2017-01-27T18:40:58Z","timestamp":1485542458000},"page":"1-27","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":6,"title":["Performance Assessment and Feasibility Analysis of IEEE 802.15.4m Wireless Sensor Networks in TV Grayspaces"],"prefix":"10.1145","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9993-4046","authenticated-orcid":false,"given":"Luca","family":"Bedogni","sequence":"first","affiliation":[{"name":"University of Bologna, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andreas","family":"Achtzehn","sequence":"additional","affiliation":[{"name":"RWTH Aachen University, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marina","family":"Petrova","sequence":"additional","affiliation":[{"name":"RWTH Aachen University, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Petri","family":"M\u00e4h\u00f6nen","sequence":"additional","affiliation":[{"name":"RWTH Aachen University, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luciano","family":"Bononi","sequence":"additional","affiliation":[{"name":"University of Bologna, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2017,1,26]]},"reference":[{"volume-title":"World Radiocommunication Conference 2015 Agenda,","key":"e_1_2_1_1_1","unstructured":"2015. 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