Shared Spectrum Access for the DoD

Chan, Serena

doi:10.1109/dyspan.2007.75

Cited by 13 publications

(8 citation statements)

References 3 publications

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“…where γ in (2) corresponds to the SNR of received signal by i th detector, λ denotes the threshold of the detector, (.,.) From (2) and 3, we can observe the false alarm probability is not affected by the strength of the received signal as (3) is not dependent on γ term. However, (2) depends on the received signal-to-noise ratio (SNR) which is random in fading channels.…”

Section: System Modelmentioning

confidence: 95%

“…That is, the spectrum access is accomplished without negotiating or consulting with the primary or licensed user. The OSA is the very foundation on which the success of cognitive radio transmission is built [2]- [6]. Hence, there is need for efficient spectrum detection techniques that can ensure cognitive radio transmission while protecting the incumbent transmissions.…”

Section: Introductionmentioning

confidence: 99%

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Extending the Capability of Energy Detector for Sensing of Heterogeneous Wideband Spectrum

Olabiyi¹

2012

IJCNC

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Reliable spectrum sensing is the very task upon which the entire operation of the cognitive radio rests. Energy detection is one of the solutions that have been proposed for enabling opportunistic spectrum access but its capability has limited sensitivity, no resolution and requires high sampling rate when employed in the detection of wideband heterogeneous spectrum. This article proposes a solution that can extend the capability of traditional energy detector to wideband sensing with improved performance. The solution involves the use of parallel detection circuitry with each tuned to different frequencies. The decision of each detection circuit can then be used to create a spectral map of the entire spectrum. This introduces some resolution component and improved sensitivity based on the number of parallel circuits and bandwidth of each detection circuit. Since the bandwidth of the incumbent signal is generally not known a priori, there is possibility that it spans across multiple detectors. The detection of such wideband signal can be achieved by either data or decision fusion of the results of each narrowband detector. We show that the use of parallel multi-channel detection can greatly enhance the detection of wideband signal compared to averaging while improving the resolution and sensitivity of energy detection of wideband spectrum. Further performance improvement can be achieved through the use of diversity reception on each narrow band detectors. Numerical results have been shown for representative cases and careful review of previous works reveals that these have never been considered in literature.

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Section: System Modelmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Extending the Capability of Energy Detector for Sensing of Heterogeneous Wideband Spectrum

Olabiyi¹

2012

IJCNC

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“…Rapid increases on mobile data communications as demonstrated by [1] has given rise to concerns regarding adequacy of available spectrum, challenging even existing spectrum allocations of governmental civilian and military authorities [2], [3]. The process to administer the use of limited radio spectrum for the benefit of society is captured under the notion of spectrum management.…”

Section: Introductionmentioning

confidence: 99%

Armed forces' views on Shared Spectrum Access

Tuukkanen

Yrjölä

Matinmikko

et al. 2017

2017 International Conference on Military Communications and Information Systems (ICMCIS)

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Recent transition from mobile telephony to daily consumption of mobile data presents the challenge of adequate spectrum availability. Besides regulators and operators, this challenge faces both public safety authorities and military as well. This paper investigates how selected spectrum sharing concepts (namely, European Licensed Shared Access (LSA) and US Citizens Broadband Service (CBRS)) support the military interests either as a Primary User (PU) or as a Secondary User (SU) and whether these concepts facilitate temporal adjustments of national defence from peace time mode of operations to hybrid warfare or to large scale homeland defence. In this paper we have shown that military spectrum needs vary from one scenario to another and that Shared Spectrum Access may support expected needs of spectrum in times of most dire stress. Both of the concepts reviewed have built in dynamism, which however does not support PU-SU role changes across tiers.

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“…Dynamic Spectrum Access (DSA) is emerging as one of the key technologies to enable the Department of Defense (DoD) to meet its increasing requirements for access to the electromagnetic spectrum [1], [2]. Policy-based radios (PBRs) with DSA functionality allow for more efficient utilization of the available spectrum in comparison to the traditional spectrum reservation paradigm [3].…”

Section: Introductionmentioning

confidence: 99%

Testing of policy-based dynamic spectrum access radios

Boksiner¹,

Chang²,

Costello³

et al. 2010

2010 - Milcom 2010 Military Communications Conference

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Policy-driven Dynamic Spectrum Access (DSA) systems are emerging as one of the key technologies to enable the Department of Defense (DoD) to meet its increasing requirements for access to the electromagnetic spectrum. A key open issue surrounding deployment and continuing development of DSA systems concerns (1) the need to test and evaluate the performance of DSA in avoiding interference to itself and assigned incumbent users and (2) the performance of DSA network in the presence of various types of potential interference. In this paper we describe test framework and concepts to characterize performance of DSA-enabled policy-based radios. Our test framework includes tests to characterize the inherent interference-avoidance characteristics of DSA, such as the time to abandon a channel, as well as tests that address performance implications of a particular DSA policy. The test framework also provides for the ability to inject a relevant electromagnetic environment (EME). The proposed framework is flexible allowing for customization of the relevant test conditions, such as the EME, and facilitates simulation of typical communications events such as network formation and fragmentation.

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Shared Spectrum Access for the DoD

Cited by 13 publications

References 3 publications

Extending the Capability of Energy Detector for Sensing of Heterogeneous Wideband Spectrum

Extending the Capability of Energy Detector for Sensing of Heterogeneous Wideband Spectrum

Armed forces' views on Shared Spectrum Access

Testing of policy-based dynamic spectrum access radios

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