Sensing Criteria of TV White Space Devices under Nakagami-Rice Fading


Foo, Yee Loo (2019) Sensing Criteria of TV White Space Devices under Nakagami-Rice Fading. In: 25th Asia-Pacific Conference on Communications (APCC) 2019, 6-8 September 2019, Eastin Grand Hotel Saigon, Ho Chi Minh City, Vietnam.

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Underutilized TV bands that constitute “TV white space (TVWS)” are now open for utilization by other telecommunication services. Spectrum regulator requires the new white space device (WSD) not interfering with the existing digital TV (DTV) service. This paper determines the conditions necessary for harmonious coexistence between the two. The main concern is the sensing WSD (SWSD) that utilizes only spectrum sensing to determine the presence of DTV service. Accuracy of sensing becomes very critical. Here we represent the sensing accuracy by the probability of detection PrD, whereas the probabilities of miss detection PrM and false alarm PrF are indicators of sensing inaccuracy. We investigate PrD, PrM, and PrF of an energy detector, a simple spectrum sensor. Key sensing criteria are the required signalto-noise power ratio (γ) and the number of energy samples (N). Our objective is to evaluate the effect of Nakagami-Rice fading on γ and N for the Integrated Services Digital Broadcasting - Terrestrial (ISDB-T) service. Under a typical fading scenario, the required N is found to be nearly 20 times larger than when fading is absent.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: TV white space, DTV, energy detection, spectrum sensing, Nakagami-Rice fading
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 27 Jan 2022 01:17
Last Modified: 27 Jan 2022 01:17


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