Journal ArticleDOI
IEEE Standards Supporting Cognitive Radio and Networks, Dynamic Spectrum Access, and Coexistence
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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
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Journal ArticleDOI
Throughput Enhancement for WLAN TV White Space in Coexistence of IEEE 802.22
Rashid A. Saeed,Ahmad Fadzil Ismail,Muhammad Kamrul Hasan,Rania A. Mokhtar,Sajda Kamal Aldin Salih,Wahidah Hashim +5 more
TL;DR: The main focus of this paper is to design a co-channel coexistence scheme for the IEEE 802.22 customer-premises equipment’s (CPEs) as well as the IEEE802.11af systems, in the TV White Spaces (TVWS).
Journal ArticleDOI
Spectrum Sensing Based on Antenna Correlation in Cognitive Radio Systems
TL;DR: Simulation results show that the proposed scheme outperforms conventional schemes unless the antenna correlation is low, which means the scheme does not need the apriori information on the primary user signal and noise.
Journal ArticleDOI
Efficient Decision Based Spectrum Mobility Scheme for Cognitive Radio Based V2V Communication System
TL;DR: Improved memory enabled genetic algorithm (IMEGA) is 0.522 ms faster than MEGA and spectrum decision and spectrum mobility schemes proposed are more efficient cognitive radio based vehicular networks.
Journal ArticleDOI
To Relay or Not to Relay in Cognitive Radio Sensor Networks
Fotis Foukalas,Tamer Khattab +1 more
TL;DR: Admission control is employed to efficiently manage this packet-wise relaying process in cognitive radio sensor networks (CRSNs), and an optimization problem to minimize the secondary delay over the admission control parameter subject to a limit on the required power budget is formulated.
Book ChapterDOI
Spectrum Management of Cognitive Radio Networks
Kwang-Cheng Chen,Ramjee Prasad +1 more
TL;DR: In this article, Spectrum Sharing Spectrum Pricing Mobility Management of Heterogeneous Wireless Networks Regulatory Issues and International Standards References are discussed in Section 5.2.1 and Section 6.1.
References
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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.