Quantitative assessment of TV white space in India

Naik, Gaurang; Singhal, Sudesh; Kumar, Animesh; Karandikar, Abhay

doi:10.1109/ncc.2014.6811306

Cited by 75 publications

(33 citation statements)

References 11 publications

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“…TVWS are vacant channels (or guard bands) between used radio bands that were allocated to avoid interference between adjacent used channels. Several measurement studies carried out on spectrum occupancy have reported that most of the allocated spectrum is currently heavily underutilized [1], [2,[3], [4]. Furthermore, analyzing the recent deployments of TVWS networks in developing countries, we can draw the following conclusions:…”

Section: Introductionmentioning

confidence: 80%

Architecting a Low Cost Television White Space Network For Developing Regions

Zennaro

Pietrosémoli

Sathiaseelan

2014

Proceedings of the Fifth ACM Symposium on Computing for Development

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There has been a number of Television White Space (TVWS) deployments in developing regions, using equipment designed for the western market. In this paper we assess a solution that addresses three of the limiting factors of existing solutions: high cost, database dependence and high power consumption. We argue that as there is enough TVWS spectrum availability especially in rural areas in developing regions, we do not need to use any geolocation databases nor do we need a tight transmit spectrum mask. We propose a low cost and an energy efficient TVWS network device that uses an embedded linux board equipped with a miniPCI card operating in the TVWS frequencies, for which we test the RF performance and power consumption for comparison to those of a commercial TVWS equipment.

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Section: Introductionmentioning

confidence: 80%

Architecting a Low Cost Television White Space Network For Developing Regions

Zennaro

Pietrosémoli

Sathiaseelan

2014

Proceedings of the Fifth ACM Symposium on Computing for Development

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show abstract

“…Often there is no threshold that simultaneously gives low false positives and low false negatives. The Federal Communications Commission (FCC), the US regulator, mandates a sensing sensitivity threshold of −114 dBm by WSDs, which is considered as way too conservative by many in the literature and leads to waste of TVWS as well as increased complexity in the sensing device [4,23,27,28]. In terms of protecting primary TV services from interference, higher threshold values might be cause of interference while lower threshold values lead to inefficient spectrum utilization.…”

Section: Detection Thresholdmentioning

confidence: 99%

“…In this quest, government institutions, research institutions, and other stakeholders around the world have performed measurements and studied the occupancy of the already allocated part of the radio frequency spectrum. The measurements have revealed that most of the allocated radio frequency spectrum is heavily underutilized except for the radio frequency spectrum allocated to cellular technologies, and the Industrial, Scientific and Medical (ISM) bands [4]. The underutilization is more apparent in the TV broadcasting frequency band where it has shown to be unused [5][6][7][8] most of the time.…”

Section: Introductionmentioning

confidence: 99%

Systematic Analysis of Geo-Location and Spectrum Sensing as Access Methods to TV White Space

Mauwa

Bagula

Zennaro

et al. 2017

JICTS

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Access to the television white space by white space devices comes with a major technical challenge: white space devices can interfere with existing television signals. Two methods have been suggested in the literature to help white space devices identify unused channels in the TV frequency band so that they can avoid causing harmful interference to primary users; geo-location spectrum database and spectrum sensing. Discussions in the literature have placed much emphasis on the limitations of the spectrum sensing approach mainly from the perspective of the developed world environment in which its drawbacks are significant. Little attention has been placed to the limitations of the geo-location database approach when applied in a developing regions. H. Mauwa et al.This paper considers a broader analysis of the approaches by looking at factors that can affect their performance and how the presence or absence of these factors in a developed region or developing region can affect their applicability. In so doing, the paper highlights the need to conduct more research on the performance of spectrum sensing in developing regions where there are much less TV broadcasting stations and therefore, white spaces are more abundant.

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“…ISO/IEC 16504 is a adapted version of ECMA-392 standard for the same application with comparable system structure. IEEE 802 standard group has some working group (WG) for TV white space [6]. IEEE 802.22 WG has issued a standard for wireless regional area networks (WRAN) [7].…”

Section: Introductionmentioning

confidence: 99%

Efficient Signal Detection Techniques in TV White Space using Cognitive Radio

2015

IJSR

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TV white space is the unused TV spectrum which can be used by secondary users to solve the problem of spectrum scarcity and to increase its efficiency. All DTT signals use OFDM, but they many employ different sets of pilot carriers, guard intervals and symbol sizes. The proposed algorithms aim to detect CR signal with reasonable detection performance in TV white space. First algorithm is based on cyclo-stationary feature detection and second algorithm is based on energy detection.

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Quantitative assessment of TV white space in India

Cited by 75 publications

References 11 publications

Architecting a Low Cost Television White Space Network For Developing Regions

Architecting a Low Cost Television White Space Network For Developing Regions

Systematic Analysis of Geo-Location and Spectrum Sensing as Access Methods to TV White Space

Efficient Signal Detection Techniques in TV White Space using Cognitive Radio

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