Distributed spectrum sensing for indoor broadcasting services using an IoT platform

Abstract

The switch to digital broadcasting technologies has allowed broadcasters an advanced level of personalization and interactivity. The possibility to deliver commercial content to more devices into the same domestic environment, excites both consumers and broadcasting service providers but is hindered by the lack of available RF spectrum. In this context, TV White Spaces (TVWS) are an ideal candidate for deploying interactive indoor broadcasting services, based on firm rules to avoid service disruption for broadcasters, by using joint spectrum sensing techniques. This paper proposes a distributed spectrum sensing method based on an IoT architecture. The architecture comes in support for short-range video broadcasting for delivering commercial contents to several TV devices in an indoor scenario, involving several sensing-enabled objects in a joint manner

Using an IoT Platform for Trustworthy D2D Communications in a Real Indoor Environment

“…In [12], we presented a preliminary study, which introduces a new method able to involve all sensing-enabled objects in a distributed sensing procedure. In particular, we implemented a python software to provide each desired device (e.g., smart TVs) with sensing capabilities in the VHF/UHF bands.…”

“…It has to be taken into account that the weights used to compute the combined received power correspond to the trustworthiness of each device. The weights considered in Figure 3 are obtained considering the spectrum sensing measurements campaign presented in [12], which is reported in Table I, and are static, since in that paper the trustworthiness was intended as the capacity of a node to sense correctly the spectrum based on its position. In this paper, we consider the trustworthiness as the willingness of a node in providing reliable information, and then proposed a dynamic algorithm to compute it based on a feedback system.…”

“…The communication in the TVWS is based on respecting the interference constraint, imposed to protect the normal operation of licensed TV broadcast services. Various studies on the use of TVWS [9] [10] [11] have identified the joint use of geo-location databases (GLDBs) and local detection techniques (i.e., spectrum sensing) to exploit the TVWS [12]. The GLDBs contain a list of free Digital Terrestrial Television (DTT) channels for a certain location, together with the allowable maximum radiated power for transmitting without harmful interference to DTT users.…”

“…In [12], the authors proposed the utilization of the SIoT paradigm for the sensing of the channel status to improve the use of the TVWS. This paper extends the previous work by:…”

Dynamic Spectrum Access for Internet of Things Service in Cognitive Radio-Enabled LPWANs

“…Fadda et al [ 26 ] propose a distributed spectrum sensing method based on an IoT architecture. The architecture comes in support of short-range video broadcasting for delivering commercial contents to several TV devices in an indoor scenario, involving several sensing-enabled objects in a joint manner.…”