Stochastic systems: estimation, identification and adaptive control
Stochastic systems: estimation, identification and adaptive control
A rate-adaptive MAC protocol for multi-Hop wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
OFDM Wireless LANs: A Theoretical and Practical Guide
OFDM Wireless LANs: A Theoretical and Practical Guide
Exploiting medium access diversity in rate adaptive wireless LANs
Proceedings of the 10th annual international conference on Mobile computing and networking
MOAR: A Multi-Channel Opportunistic Auto-Rate Media Access Protocol for Ad Hoc Networks
BROADNETS '04 Proceedings of the First International Conference on Broadband Networks
Optimizing transmission rate in wireless channels using adaptive probes
SIGMETRICS '06/Performance '06 Proceedings of the joint international conference on Measurement and modeling of computer systems
Opportunistic spectral usage: bounds and a multi-band CSMA/CA protocol
IEEE/ACM Transactions on Networking (TON)
Direction finding and “smart antennas” using software radio architectures
IEEE Communications Magazine
Exploring diversity: evaluating the cost of frequency diversity in communication and routing
Proceedings of the 6th ACM conference on Embedded network sensor systems
Deadline Probing: Towards Timely Cognitive Wireless Network
NPC '08 Proceedings of the IFIP International Conference on Network and Parallel Computing
Scheduling with limited information in wireless systems
Proceedings of the tenth ACM international symposium on Mobile ad hoc networking and computing
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 negotiation game for multichannel access in cognitive radio networks
Proceedings of the 4th Annual International Conference on Wireless Internet
Design of a Reliable Traffic Control System on City Area Based on a Wireless Network
ICCSA '09 Proceedings of the International Conference on Computational Science and Its Applications: Part I
Dynamic spectrum access in DTV whitespaces: design rules, architecture and algorithms
Proceedings of the 15th annual international conference on Mobile computing and networking
Proceedings of the 15th annual international conference on Mobile computing and networking
Optimal selection of channel sensing order in cognitive radio
IEEE Transactions on Wireless Communications
Optimality of myopic sensing in multichannel opportunistic access
IEEE Transactions on Information Theory
Optimal channel probing and transmission scheduling for opportunistic spectrum access
IEEE/ACM Transactions on Networking (TON)
Rematch: a highly reliable scheduling algorithm on heterogeneous wireless mesh network
The Journal of Supercomputing
Betting on Gilbert-Elliot channels
IEEE Transactions on Wireless Communications
On scheduling in multi-channel wireless downlink networks with limited feedback
Allerton'09 Proceedings of the 47th annual Allerton conference on Communication, control, and computing
A noncooperative spectrum sensing game with maximum network throughput
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Learning to optimally exploit multi-channel diversity in wireless systems
INFOCOM'10 Proceedings of the 29th conference on Information communications
On optimal feedback allocation in multichannel wireless downlinks
Proceedings of the eleventh ACM international symposium on Mobile ad hoc networking and computing
Cognitive radios for dynamic spectrum access: from concept to reality
IEEE Wireless Communications
Selective placement of high-reliability operation in grid-style wireless control networks
ICCSA'11 Proceedings of the 2011 international conference on Computational science and Its applications - Volume Part V
Dynamic channel, rate selection and scheduling for white spaces
Proceedings of the Seventh COnference on emerging Networking EXperiments and Technologies
A control loop reduction scheme for wireless process control on traffic light networks
ICCSA'10 Proceedings of the 2010 international conference on Computational Science and Its Applications - Volume Part III
Design of a slot assignment scheme for link error distribution on wireless grid networks
ICA3PP'10 Proceedings of the 10th international conference on Algorithms and Architectures for Parallel Processing - Volume Part I
Application-aware dynamic spectrum access
Wireless Networks
DSASync: managing end-to-end connections in dynamic spectrum access wireless LANs
IEEE/ACM Transactions on Networking (TON)
On distributed scheduling with heterogeneously delayed network-state information
Queueing Systems: Theory and Applications
CSpy: finding the best quality channel without probing
Proceedings of the 19th annual international conference on Mobile computing & networking
Optimal Channel Sensing Order for Various Applications in Cognitive Radio Networks
Wireless Personal Communications: An International Journal
Approaching throughput optimality with limited feedback in multichannel wireless downlink networks
IEEE/ACM Transactions on Networking (TON)
Sequential sensing based spectrum handoff in cognitive radio networks with multiple users
Computer Networks: The International Journal of Computer and Telecommunications Networking
Wireless Personal Communications: An International Journal
| Hi-index | 0.06 |
In this study we consider optimal opportunistic spectrum access (OSA) policies for a transmitter in a multichannel wireless system, where a channel can be in one of multiple states. Each channel state is associated with either a probability of transmission success or a transmission rate. In such systems, the transmitter typically has partial information concerning the channel states, but can deduce more by probing individual channels, e.g. by sending control packets in the channels, at the expense of certain resources, e.g., energy and time. The main goal of this work is to derive optimal strategies for determining which channels to probe (in what sequence) and which channel to use for transmission. We consider two problems within this context,allthe constant data time (CDT) and the constant access time (CAT) problems. For both problems, we derive key structural properties of the corresponding optimal strategy. In particular, we show that it has a threshold structure and can be described by an index policy. We further show that the optimal CDT strategy can only take on one of three structural forms. Using these results we present a two-step lookahead CDT (CAT) strategy. This strategy is shown to be optimal for a number of cases of practical interest. We examine its performance under a class of practical channel models via numerical studies.