Premium
Coexistence of DTV and TV white space systems
Author(s) -
Foo YeeLoo,
Takada Junichi
Publication year - 2017
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.3222
Subject(s) - white spaces , digital television , computer science , telecommunications , service (business) , interactive television , broadcast television systems , interference (communication) , cable television , boundary (topology) , wireless , business , channel (broadcasting) , cognitive radio , mathematical analysis , mathematics , marketing
Summary It is foreseeable that in near future, heterogeneous TV white space (TVWS) systems will operate in underused TV bands. Potential interference between TVWS systems and digital TV (DTV) broadcast system is a major concern. These TVWS systems need to maintain from the DTV service boundary some keep‐out distances d k , which vary depending on circumstances. This work provides a comprehensive analysis on d k for different TVWS devices that operate on co‐ and adjacent channels, based on 2 different protection criteria for DTV service, using 4 different propagation models (each suits different propagation environment) for estimating d k . In brief, this article contributes to the mathematical technique of determining d k under different circumstances. On the basis of the conditions chosen for the analysis, we come up with some recommendations for d k . Moreover, we share our opinions on some regulatory requirements for d k . The strictness of the regulatory requirement in this matter is important because when it is appropriately set, it can actually promote further development and expansion of TVWS technologies.