Performance Evaluation of Modified IEEE 802.11 MAC for Multi-Channel Multi-Hop Ad Hoc Network
AINA '03 Proceedings of the 17th International Conference on Advanced Information Networking and Applications
ISPAN '00 Proceedings of the 2000 International Symposium on Parallel Architectures, Algorithms and Networks
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
Proceedings of the 10th annual international conference on Mobile computing and networking
Ad Hoc & Sensor Networks: Theory And Applications
Ad Hoc & Sensor Networks: Theory And Applications
Evolution of spectrum-agile cognitive radios: first wireless internet standard and beyond
WICON '06 Proceedings of the 2nd annual international workshop on Wireless internet
Distributed multichannel MAC protocol for IEEE 802.11 ad hoc wireless LANs
Computer Communications
Cognitive radio: brain-empowered wireless communications
IEEE Journal on Selected Areas in Communications
Evolution of spectrum-agile cognitive radios: first wireless internet standard and beyond
WICON '06 Proceedings of the 2nd annual international workshop on Wireless internet
In-band spectrum sensing in cognitive radio networks: energy detection or feature detection?
Proceedings of the 14th ACM international conference on Mobile computing and networking
Revenue generation for truthful spectrum auction in dynamic spectrum access
Proceedings of the tenth ACM international symposium on Mobile ad hoc networking and computing
A survey on MAC protocols for cognitive radio networks
Ad Hoc Networks
Opportunistic spectrum access in cognitive radio networks: when to turn off the spectrum sensors
Proceedings of the 4th Annual International Conference on Wireless Internet
A two-stage sensing technique for dynamic spectrum access
IEEE Transactions on Wireless Communications
Performance analysis of slotted ALOHA based multi-channel cognitive packet radio network
CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
Connectivity based cognitive wireless network for disaster information network
Proceedings of the 7th International Conference on Advances in Mobile Computing and Multimedia
Cooperative boundary detection for spectrum sensing using dedicated wireless sensor networks
INFOCOM'10 Proceedings of the 29th conference on Information communications
An exclusive self-coexistence (ESC) resource sharing algorithm for cognitive 802.22 networks
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
Asynchronous SNR estimation of PSK/QAM modulated signals in flat-fading channels
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Sensitive white space detection with spectral covariance sensing
IEEE Transactions on Wireless Communications
User policy based transmission control method in cognitive wireless network
ICCSA'10 Proceedings of the 2010 international conference on Computational Science and Its Applications - Volume Part III
Adaptive sensing scheduling for cognitive radio systems
Computer Networks: The International Journal of Computer and Telecommunications Networking
Sequential sensing based spectrum handoff in cognitive radio networks with multiple users
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Research in the physical (PHY) and medium access control (MAC) layers for dynamic spectrum access (DSA) and dynamic spectrum sharing (DSS) is still at its infancy. Aspects such as spectrum sensing, coexistence, measurement and spectrum management, network reliability and QoS support in face of the need to avoid causing harmful interference into incumbents, to name a few, are key to the success of future cognitive radio (CR) systems and have received little attention so far. In addition, it is critical to understand the interplay of these various cognitive radio concepts and how they impact the overall network performance. In this paper we address these questions by presenting the design and performance evaluation of a CR-based PHY and MAC for DSA and DSS of vacant television (TV) channels. This air interface described here forms the baseline of the current IEEE 802.22 draft standard, and features a number of key PHY and MAC CR-based components for use by license-exempt devices in the spectrum that is currently allocated primarily to TV services. Through simulations and prototyping, we analyze the performance of this first CR-based wireless network with respect to spectrum sensing, system capacity, QoS support, coexistence, and network reliability.