Availability assessment of TVWS for Wi-Fi-like secondary system: A case study

Latkoski, Pero; Karamacoski, Jovan; Gavrilovska, Liljana

doi:10.4108/icst.crowncom.2012.248453

Cited by 5 publications

(1 citation statement)

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“…As it has been previously shown in [13], under the EC-C rules the percentage of observed territory with non-zero number of available frequency channels is 64.7%. In other words, when a SU is in any given location, there is a high probability that at least one frequency channel in TVWS could be available for SU transmission.…”

Section: Tvwssupporting

confidence: 53%

Extending recharging cycles of mobile devices with intelligent use of wireless interfaces

Zhao

Friderikos

2013

2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

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The increased usage of smartphones and the rich ecosystem of Internet applications are having a severe effect on the recharging cycles of devices due to the increased levels of energy consumption and limitations of battery technology. As the infrastructure of hotspots for Wi-Fi and TVWS (TV White Space) interfaces have become ubiquitously available in urban areas, the energy usage in modern devices for transmitting a fixed amount of data could differ drastically due to the significant difference on the achievable data rates on these radios. As a result, techniques that can reduce the energy cost for Internet applications with emphasis on the client side would effectively increase the battery lifetime of digital devices. To this end, we introduce a strategy that deploy roadside infrastructure Wi-Fi Access Points (AP) and determine available spectrum (TVWS) at a given location to assist the data delivery for mobile devices according to corresponding on-line service features of mobile applications. In this framework, we incorporate a probabilistic analysis for spectrum availability and cell residence time of vehicle mobility. Numerical investigations reveal that the proposed set of schemes could increase the battery lifespans by up to 25%.

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Section: Tvwssupporting

confidence: 53%