Spectrum considerations for public safety in the United States

Doumi, T.L.

doi:10.1109/mcom.2006.1580930

Cited by 56 publications

(26 citation statements)

References 1 publication

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“…An obvious limitation in using directional antennas is the difficulty of maintaining link connectivity between vehicles, except perhaps in some highway situations. In addition, most new V2V applications are expected to be in lower frequency bands (e.g., 5 GHz [1]) or the public safety band at 700 MHz [4]. With directional antennas the channel can be well modeled as having one LOS path and one or more reflected paths, and amplitude fading can be modeled as having Ricean statistics.…”

Section: Existing V2v Channel Modelsmentioning

confidence: 99%

“…Some obvious benefits of V2V communication are enhanced road safety; increased commuter awareness of current traffic [3], weather, and road conditions; reduced delays at tollbooths; and the ability to enable groups of traveling cars to exchange multimedia information. Vehicular mobile ad hoc networks (VANETs) are also receiving attention, and may be used by public safety organizations [4] and the military, as well as the general public. The list of possible applications is long, and is addressed by other articles in this issue.…”

Section: Introductionmentioning

confidence: 99%

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Channel Modeling for Vehicle-To-Vehicle Communications

Matolak

2008

IEEE Commun. Mag.

148

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Section: Existing V2v Channel Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Channel Modeling for Vehicle-To-Vehicle Communications

Matolak

2008

IEEE Commun. Mag.

148

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“…The forward channel center frequencies are in the range 856.2375 to 868.0625 MHz and the reverse channel center frequencies are in the range 811.2375 to 823.0375 MHz. See [11] for a broader description of the public safety band. One of the virtual channels is assigned as a control channel on a daily basis.…”

Section: The Us Public Safety Networkmentioning

confidence: 99%

Characterization of Spectrum Activities in the U.S. Public Safety Band for Opportunistic Spectrum Access

Jones¹,

Jung²,

Liu³

et al. 2007

2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks

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Abstract-Dual site spectrum measurements have been made in the public safety band in Howard County, Maryland, USA. The public safety band is of interest because of its obvious importance and the increasing need to determine whether improved spectral utilization would accommodate increased usage for public safety. Two receiver suites were synchronized and used to measure concurrent spectra at separations between a few meters up to a few kilometers. These measurements prove useful in examining issues of spectrum sensing for dynamic spectrum access, including receiver sensitivity, primary user signal detection, adjacent channel interference, and policy performance with local and cooperative sensing. We analyze the collected data to characterize the usage of this public safety network and provide insights into how white space can be identified and utilized. We propose a class of opportunistic access strategies and demonstrate how collected data can be used to evaluate the performance of such schemes.Index Terms-dynamic spectrum access, public safety band, spectrum measurement, spectrum policy, and spectrum data analysis

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“…The topic has been largely investigated (e.g. see references [1][2][3][4][5][6] and references therein) during the last two decades.The quality of communications services offered by the actual public safety systems is in general well behind of that offered by commercial systems. At the same time, due to costs of radio coverage and trunking, the quality of services provided by existing commercial mobile systems in low densely populated areas, e.g.…”

mentioning

confidence: 99%

“…The topic has been largely investigated (e.g. see references [1][2][3][4][5][6] and references therein) during the last two decades.…”

mentioning

confidence: 99%

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Mitseva

Aivaloglou

Marchitti

et al. 2010

Wireless Communications

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Wireless communications for public safety, emergency communications, and delivery of wideband services to rural communities are topics of crucial importance to the welfare of the society. Broadband wireless digital subscriber loop (WDSL) technologies offer complementary and possibly low cost solutions to providing broadband connectivity services even to low densely populated areas that otherwise would be outside the loop. At the same time the availability of broadband wireless technologies can be useful for effective information dissemination in times of natural and man-made disasters thus providing a fundamental tool helping public safety agencies in providing quick response and support to communities needing urgent assistance and relief. The topic has been largely investigated (e.g. see references [1][2][3][4][5][6] and references therein) during the last two decades.The quality of communications services offered by the actual public safety systems is in general well behind of that offered by commercial systems. At the same time, due to costs of radio coverage and trunking, the quality of services provided by existing commercial mobile systems in low densely populated areas, e.g. rural areas, is well below that offered by operators in urban and sub-urban areas. Current solutions for rural areas for example provide basic telephone services and only are rarely suitable for effective data access. Some rural areas that are close to natural woods with dry climates are prone to fires that could be disastrous. Reliable emergency communications systems should be adequately available with access to the residents in order for emergency authorities to be able to respond to such natural disasters, as quickly as possible, if they occur.The society obvious need for new and advanced communications services for supporting public safety operations has led to the evolution of current systems towards a new generation of professional mobile radio (PMR) and standard communication systems. Terrestrial Trunked Radio (TETRA) technology has gained wide acceptance (especially in Europe) and is considered one of the mature technologies for PMR and even for PAMR (Public Access Mobile Radio) markets. TETRA has been conceived in accordance to the requirements issued by public safety agencies such as ambulance services, law enforcement, civil emergency management/disaster recovery, fire services, coast guard services, search, and rescue services, government administrations and so forth. In recent years it has been observed that integration between mobile broadband technologies and TETRA can be helpful for the achievement of the advanced services envisioned for the next generation of Public Safety and Disaster Recovery (PSDR) communication systems. In fact, data rates required for advanced emergency services provisioning plus the demand for enhanced mobility improved ad hoc functionality, and international interoperability reach far beyond the scope of the current PSDR narrowband telecommunication systems and call for mobile broadband enhanc...

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Spectrum considerations for public safety in the United States

Cited by 56 publications

References 1 publication

Channel Modeling for Vehicle-To-Vehicle Communications

Channel Modeling for Vehicle-To-Vehicle Communications

Characterization of Spectrum Activities in the U.S. Public Safety Band for Opportunistic Spectrum Access

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