Operational Challenges for Emerging Cognitive Radio Technologies - Wireless Devices Utilizing TV White Spaces
نویسنده
چکیده
Cognitive radios are finally emerging in the form of White Space devices capable of accessing spectral resources allocated for communication systems but not actually in use. Temporal and geographical information on existence of White Space is obtained from dedicated database through Internet access. In this paper, technological advancements enabling commercial utilization of wireless White Space devices are analyzed. However, before full scale commercial deployment is possible regulatory and techno-economical challenges exist. Here, current research and development, regulation, and standardization activities to overcome remaining obstacles are surveyed. Scientific community should turn attention to providing contributions for regulatory authorities in order to facilitate positive administrative decisions for cognitive radio technologies.
منابع مشابه
Overview of 802.22 WRAN Standard and Research Challenges
Cognitive radio technology gets much attention of wireless network research environments as a new way to utilize the precious spectrum efficiently. IEEE 802.22, Wireless Regional Area Network, is the first international standard based on cognitive radio technology which intends to provide broadband access by utilizing unused TV channels, also known as TV white spaces. This standard provides PHY...
متن کاملEfficient radio resource management algorithms in opportunistic cognitive radio networks
Cognitive radio (CR) paradigm was introduced, towards addressing challenges, related with radio spectrum scarcity and increased needs for wireless networking services provision. In this direction, CR networks exploit novel networking architectures, as well as dynamic radio spectrum access techniques and methods, alleviating problems, regarding limited wireless networking resources and their ine...
متن کاملAdvances in opportunistic radio technologies for TVWS
Cognitive radio has been an active research area in wireless communications over the past 10 years. TV Digital Switch Over resulted in new regulatory regimes, which offer the first large-scale opportunity for cognitive radio and networks. This article considers the most recent regulatory rules for TV White Space opportunistic usage, and proposes technologies to operate in these bands. It addres...
متن کاملWireless Sensor Networking over White Spaces
White spaces represent unoccupied TV spectrum that could be used for wireless communication by unlicensed devices, just like Wi-Fi and ZigBee devices can use the ISM bands. This low-frequency spectrum enables high bandwidth communication at long transmission ranges. In this paper, we propose a system that leverages the benefits of white spaces for sensor networks, with a view to overcoming the ...
متن کاملThe FP7 COGEU TV White Space Radio Transceiver
COGnitive radio systems for efficient sharing of TV white spaces in EUropean context (COGEU) is a threeyear Specific Target Research Project (STREP) supported by the EU 7th Framework Program which concluded in 2013. This paper presents the COGEU TV white space (TVWS) radio transceiver, a key demonstrator and deliverable of the project. The demonstrator consists of a Software Defined Radio (SDR)...
متن کامل