By K. J. Ray Liu
With the speedy development of recent instant units and functions during the last decade, the call for for instant radio spectrum is expanding relentlessly. the advance of cognitive radio networking offers a framework for making the absolute best use of constrained spectrum assets, and it truly is revolutionising the telecommunications undefined. This ebook offers the basics of designing, enforcing, and deploying cognitive radio communique and networking platforms. Uniquely, it makes a speciality of online game thought and its functions to varied elements of cognitive networking. It covers intimately the middle features of cognitive radio, together with cooperation, situational information, studying, and protection mechanisms and techniques. moreover, it offers novel, state of the art ideas and up to date effects. this can be a great reference for researchers, scholars and execs in who have to examine the functions of video game conception to cognitive networking. proposing the basics of designing, enforcing, and deploying cognitive radio networks, this publication presents a different specialize in online game conception and its purposes. Cooperation, situational know-how, studying, and protection are all coated intimately, as well as novel, cutting-edge suggestions and up to date effects.
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Extra info for Cognitive Radio Networking and Security A Game Theoretic View
This kind of handoff in CR networks is termed spectrum handoff . Since the transmissions of secondary users are suspended during spectrum handoff, they will experience longer packet delay. Therefore, a good spectrum handoff mechanism should provide secondary users with a smooth frequency shift with the least possible latency. A good way to alleviate the performance degradation due to long delay is to reserve a certain number of channels for potential spectrum handoff . 4 Dynamic spectrum allocation and sharing 29 the reserved bands.
4 Dynamic spectrum allocation and sharing 31 allocation are jointly optimized, and a corresponding MAC protocol is proposed and implemented in a Universal Software Radio Peripheral-based testbed. There are also several other works that study the performance of cognitive relay networks, including the achievable region and outage probability. The achievable region for a two-source, two-destination Gaussian interference channel with a cognitive relay is studied in , where the cognitive relay has access to messages transmitted by both sources and assists them in relaying the messages to their respective destinations.
In order to give the reader more insight into how to design efficient spectrum allocation and sharing schemes, we next discuss several important issues in dynamic spectrum allocation and sharing. 1 Medium-access control in CR networks Medium-access control refers to the policy that controls how a secondary user should access a licensed spectrum band. Various medium-access control protocols have been proposed in wireless networking such as carrier-sense multiple access (CSMA) and slotted ALOHA. 4 Dynamic spectrum allocation and sharing 27 spectrum availability, and adaptation to a changing environment, new medium-access protocols need to be designed to address new challenges in CR networks.
Cognitive Radio Networking and Security A Game Theoretic View by K. J. Ray Liu