Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
Multiple Access Protocol for Power-Controlled Wireless Access Nets
IEEE Transactions on Mobile Computing
The Horus WLAN location determination system
Proceedings of the 3rd international conference on Mobile systems, applications, and services
Mobilized Ad-Hoc Networks: A Reinforcement Learning Approach
ICAC '04 Proceedings of the First International Conference on Autonomic Computing
NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Dynamic Spectrum Access with QoS and Interference Temperature Constraints
IEEE Transactions on Mobile Computing
Allocating dynamic time-spectrum blocks in cognitive radio networks
Proceedings of the 8th ACM international symposium on Mobile ad hoc networking and computing
Opportunistic spectral usage: bounds and a multi-band CSMA/CA protocol
IEEE/ACM Transactions on Networking (TON)
Performance of multichannel wireless ad hoc networks
International Journal of Wireless and Mobile Computing
MAC Protocol for Opportunistic Cognitive Radio Networks with Soft Guarantees
IEEE Transactions on Mobile Computing
Channel access protocols for multihop opportunistic networks: challenges and recent developments
IEEE Network: The Magazine of Global Internetworking - Special issue title on networking over multi-hop cognitive networks
Cognitive radio: brain-empowered wireless communications
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Dynamic spectrum access in open spectrum wireless networks
IEEE Journal on Selected Areas in Communications
Channel assignment and access protocols for spectrum-agile networks with single-transceiver radios
NETWORKING'11 Proceedings of the 10th international IFIP TC 6 conference on Networking - Volume Part II
Throughput-oriented channel assignment for opportunistic spectrum access networks
Mathematical and Computer Modelling: An International Journal
Computers and Electrical Engineering
Opportunistic medium access control for maximizing packet delivery rate in dynamic access networks
Journal of Network and Computer Applications
Engineering Applications of Artificial Intelligence
A two-step resource allocation procedure for LTE-based cognitive radio network
Computer Networks: The International Journal of Computer and Telecommunications Networking
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The cognitive radio (CR) paradigm calls for open spectrum access according to a predetermined etiquette. Under this paradigm, CR nodes access the spectrum opportunistically by continuously monitoring the operating channels. A key challenge in this domain is how the nodes in a CR network (CRN) cooperate to access the medium in order to maximize the CRN throughput. Typical multichannel MAC protocols assume that frequency channels are adjacent and that there are no constraints on the transmission power. However, a CRN may operate over a wide range of frequencies, and a power mask is often enforced on the transmission of a CR user to avoid corrupting the transmissions of spectrum-licensed primary-radio (PR) users. To avoid unnecessary blocking of CR transmissions, we propose a novel distance-dependent MAC protocol for CRNs. Our protocol, called DDMAC, attempts to maximize the CRN throughput. It uses a novel probabilistic channel assignment mechanism that exploits the dependence between the signal's attenuation model and the transmission distance while considering the traffic profile. DDMAC allows a pair of CR users to communicate on a channel that may not be optimal from one user's perspective, but that allows more concurrent transmissions to take place, especially under moderate and high traffic loads. Simulation results indicate that, compared to typical multichannel CSMA-based protocols, DDMAC reduces the blocking rate of CR requests by up to 30%, which consequently improves the network throughput.