Journal ArticleDOI
IEEE Standards Supporting Cognitive Radio and Networks, Dynamic Spectrum Access, and Coexistence
Reads0
Chats0
TLDR
A review of standardization activities for cognitive radio technologies and comments on prospects and issues for future standardization are provided.Abstract:
Cognitive radio techniques are being applied to many different communications systems. They hold promise for increasing utilization of radio frequencies that are underutilized today, allowing for improved commercial data services, and allowing for new emergency and military communications services. For example, these techniques are being considered by the U.S. FCC for communications services in unlicensed VHF and UHF TV bands. Although traditionally these techniques are closely associated with software-defined radios, many standards such as WiFi (IEEE 802.11), Zigbee (IEEE 802.15.4), and WiMAX (IEEE 802.16) already include some degree of CR technology today. Further advances are occurring rapidly. IEEE 802.22 will be the first cognitive radio-based international standard with tangible frequency bands for its operation. Standardization is at the core of the current and future success of cognitive radio. Industry stakeholders are participating in international standards activities governing the use of cognitive radio techniques for dynamic spectrum access and coexistence, next-generation radio and spectrum management, and interoperability in infrastructure-less wireless networks. This article provides a review of standardization activities for cognitive radio technologies and comments on prospects and issues for future standardization.read more
Citations
More filters
Book ChapterDOI
Cooperative Spectrum Handovers in Cognitive Radio Networks
H. Anandakumar,K. Umamaheswari +1 more
TL;DR: It is found that cooperative spectrum sensing is not only advantageous but is also essential to avoid interference with any primary network users, and a dynamic technique called CUSUM algorithm is devised.
Journal ArticleDOI
Building programmable wireless networks: an architectural survey
TL;DR: In this paper, the authors present an overview of the programmability solutions that have been proposed at the device and the network level in modern wireless networks and discuss software-defined radio (SDR), cognitive radio (CR), programmable MAC processor, and programmable routers as device-level program mability solutions.
Posted Content
Interference mitigation techniques in modern wireless communication systems
TL;DR: Η μελέτη και σχεδίαση των ση χρηστώn σε εφαρματικής που απαιτοos�́ν υψηλό ρυθμ
Journal ArticleDOI
Spectrum Sensing in Full-Duplex Cognitive Radio Networks Under Hardware Imperfections
TL;DR: Quantifying and evaluating the effects of IQI in single- and multichannel energy detectors operating in FD mode under both cooperative and noncooperative spectrum sensing scenarios indicate that the IQI and partial SIS can significantly affect spectrum sensing accuracy in FD-based CRNs.
Journal ArticleDOI
Single-Band and Switchable Dual-/Single-Band Tunable BPFs With Predefined Tuning Range, Bandwidth, and Selectivity
TL;DR: A new kind of highly flexible frequency-agile bandpass filters (FA-BPFs) based on the novel synchronously tuned dual-mode resonator (STDR) with very simple and highly flexible design/control procedures is presented.
References
More filters
Journal ArticleDOI
Cognitive radio: making software radios more personal
TL;DR: With RKRL, cognitive radio agents may actively manipulate the protocol stack to adapt known etiquettes to better satisfy the user's needs and transforms radio nodes from blind executors of predefined protocols to radio-domain-aware intelligent agents that search out ways to deliver the services the user wants even if that user does not know how to obtain them.
Journal ArticleDOI
Cognitive functionality in next generation wireless networks: standardization efforts
TL;DR: This article discusses recent standardization efforts related to cognitive radio focusing on the work of IEEE Standards Coordinating Committee 41, formerly known as IEEE 1900, and some important tasks to be performed by the CR standardization community.
Journal ArticleDOI
Recent advances in cognitive communications
Apurva N. Mody,Stephen R. Blatt,Diane G. Mills,Thomas P. McElwain,Ned B. Thammakhoune,Joshua D. Niedzwiecki,Mathew Sherman,Cory S. Myers,Paul D. Fiore +8 more
TL;DR: This article describes recent advances in cognitive communications, which combines the concepts of signal processing, communications, pattern classification, and machine learning to make dynamic use of the spectrum, such that the emanated signals do not interfere with the existing ones.