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Results 1 - 10
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7,327
Opportunistic Spectrum Access for
, 2016
"... Opportunistic spectrum access for mobile cognitive radios ..."
Collaboration and fairness in opportunistic spectrum access
- in Proc. of IEEE International Conference on Communications
, 2005
"... Abstract — The Open Spectrum approach to spectrum access can achieve near-optimal spectrum utilization by letting users sense and utilize available spectrum opportunistically. However, naive spectrum assignment can lead to significant interference. We propose a network controlled spectrum access sch ..."
Abstract
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Cited by 78 (3 self)
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Abstract — The Open Spectrum approach to spectrum access can achieve near-optimal spectrum utilization by letting users sense and utilize available spectrum opportunistically. However, naive spectrum assignment can lead to significant interference. We propose a network controlled spectrum access
for opportunistic spectrum access ∗
, 2006
"... Utilization and fairness in spectrum assignment ..."
SPECTRUM OPPORTUNITY AND INTERFERENCE CONSTRAINT IN OPPORTUNISTIC SPECTRUM ACCESS
"... In this paper, we study two important concepts in opportunistic spectrum access: spectrum opportunity and interference constraint. We aim to provide a certain level of rigor to these seemingly intuitive terms central to opportunistic spectrum access. Their implications in spectrum opportunity detect ..."
Abstract
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In this paper, we study two important concepts in opportunistic spectrum access: spectrum opportunity and interference constraint. We aim to provide a certain level of rigor to these seemingly intuitive terms central to opportunistic spectrum access. Their implications in spectrum opportunity
On the Feasibility of Effective Opportunistic Spectrum Access
- PROC. OF THE 10TH INTERNET MEASUREMENT CONFERENCE (IMC 2010)
, 2010
"... Dynamic spectrum access networks are designed to allow today’s bandwidth hungry “secondary devices” to share spectrum allocated to legacy devices, or “primary users.” The success of this wireless communication model relies on the availability of unused spectrum, and the ability of secondary devices ..."
Abstract
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Cited by 15 (1 self)
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users.
In this paper, we present the first comprehensive study on the presence of “usable” spectrum in opportunistic spectrum access systems, and whether sufficient spectrum can be extracted by secondary devices to support traditional networking applications. We use for our study fine-grain usage
Joint design and separation principle for opportunistic spectrum access
- IEEE Transactions on Information Theory
, 2006
"... Abstract — This paper develops optimal strategy for opportunistic spectrum access (OSA) by integrating the design of spectrum sensor at the physical layer with that of spectrum sensing and access policies at the medium access control (MAC) layer. The design objective is to maximize the throughput of ..."
Abstract
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Cited by 137 (35 self)
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Abstract — This paper develops optimal strategy for opportunistic spectrum access (OSA) by integrating the design of spectrum sensor at the physical layer with that of spectrum sensing and access policies at the medium access control (MAC) layer. The design objective is to maximize the throughput
A DECISION-THEORETIC FRAMEWORK FOR OPPORTUNISTIC SPECTRUM ACCESS
"... The authors identify basic components, fundamental trade-offs, and practical constraints in opportunistic spectrum access. A decision-theoretic framework based on the theory of partially observable Markov decision processes is introduced. ..."
Abstract
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Cited by 26 (3 self)
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The authors identify basic components, fundamental trade-offs, and practical constraints in opportunistic spectrum access. A decision-theoretic framework based on the theory of partially observable Markov decision processes is introduced.
Spectrum Sensing for DCF in Opportunistic Spectrum Access Environment
"... Opportunistic spectrum access was proposed to improve spectrum efficiency in which secondary users can access the unused portion of the licensed spectrum. Spectrum sensing process identifies the opportunities for secondary users to access the channel. We focus on integrating the spectrum sensing pro ..."
Abstract
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Opportunistic spectrum access was proposed to improve spectrum efficiency in which secondary users can access the unused portion of the licensed spectrum. Spectrum sensing process identifies the opportunities for secondary users to access the channel. We focus on integrating the spectrum sensing
Opportunistic Spectrum Access in Cognitive Radio Networks
"... Abstract—Enabled by regulatory initiatives and radio technology advances, opportunistic spectrum access has the potential to mitigate spectrum scarcity and satisfy the increasing demand for spectrum. In this paper, we consider a scenario where secondary users can opportunistically access unused spec ..."
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Abstract—Enabled by regulatory initiatives and radio technology advances, opportunistic spectrum access has the potential to mitigate spectrum scarcity and satisfy the increasing demand for spectrum. In this paper, we consider a scenario where secondary users can opportunistically access unused
A. Opportunistic Spectrum Access in Slotted Primary Systems
"... Abstract—We consider the design of opportunistic spectrum access (OSA) strategies that allow secondary users to search for and exploit spectrum opportunities in unslotted primary systems. We formulate the joint design of OSA as a constrained partially observable Markov decision process (POMDP). A se ..."
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Abstract—We consider the design of opportunistic spectrum access (OSA) strategies that allow secondary users to search for and exploit spectrum opportunities in unslotted primary systems. We formulate the joint design of OSA as a constrained partially observable Markov decision process (POMDP). A
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7,327
