Connecting the dots

Wiesenfeld, Ira; Shapiro, Robert C.
October 2010
Urgent Communications;Oct2010, Vol. 28 Issue 10, p30
Trade Publication
The article explores various methods and tools in transferring information from land-mobile radio (LMR) sites to the dispatch and command-and-control points. One method is by landline, such as copper wires, which links traditional communication systems. Another tool is microwave radio link, which is the next most popular way of linking radio sites. Other tools and methods for connecting sites to each other include free space optics, fiber optics and radio frequency control links.


Related Articles

  • New transport methods. McNamara, Kevin // Radio Magazine;Jan2004, Vol. 10 Issue 1, p10 

    Provides information on several data transport technologies. Background on the wireless microwave systems; Features of free-space optics; Applications of the technologies.

  • AT&T's 'Project Eyesore' Riedel, Bunnie // Multichannel News;4/24/2006, Vol. 27 Issue 17, p19 

    Focuses on the Project Lightspeed architecture of telephone company AT&T Inc. in the U.S. Use of fiber optics and copper wire in the architecture; Connection of the fiber optics to digital subscriber line access modules; Ability of homeowners to access video programming through the architecture.

  • Hacia la próxima generación de sistemas de Radio sobre Fibra de banda ancha: retos tecnológicos en la banda de las ondas milimétricas. Granada Torres, Jhon James; Serpa Imbett, Claudia Milena; Varón Durán, Gloria Margarita; González, Neil Guerrero // Ingeniería y Desarrollo;jul-dic2011, Vol. 2 Issue 29, p242 

    In this paper, we present a review based in the most relevant scientific works of radio-over-fiber technology. The most important issues of the state-of-the-art evolution are exposed. We show a description of the main devices and the most recent experimental tests that suggest the integration...

  • The Light At the End of the Network. Fitchard, Kevin // Wireless Review;Oct2003, Vol. 20 Issue 10, p26 

    Relates the efforts of wireless communications company ADC to introduce free space optics in the telecom industry. Scope of its wireless coverage enhancement product; Contributions of Gary Spedaliere, director of global management of the wireless business unit, to the efforts; Problems on the...

  • Optical wireless: Increasing speeds, dropping prices. Ziobron, Betsy // Cabling Installation & Maintenance;Jan2007, Vol. 15 Issue 1, p29 

    The article reports on a free space optics (FSO) system used as a typical wireless data communication. FSO is a line-of-sight technology that uses beam of light instead of radio waves to provide a point-to-point means of connectivity through the air. Since FSO was first used by the military to...

  • Dual Band Circularly Polarized Modified Rectangular Patch Antenna for Wireless Communication. SHARMA, Vijay; SHARMA, M. M. // Radioengineering;Apr2014, Vol. 23 Issue 1, p195 

    A dual band circularly polarized single-feed microstrip antenna for wireless communication systems is proposed here and its performance is tested in free space. This modified rectangular microstrip antenna having one protruded curved edge is simulated by using the IE3D simulation software. In...

  • Modeling of 2.5 Gbps-FSO Link in Wireless Ultraviolet Communication System. Xu Zhang; Xiaorui Wang; Yinpeng Yu; Yamin Xie; YuChen Tan // Applied Mechanics & Materials;2014, Vol. 703, p228 

    The wireless ultraviolet (UV) communication technology has received great attention for either short-range high data-rate services or medium-to-large range low-rate sensing applications. However, performance of an UV link is limited by multiple constraints from the current UV laser source and...

  • Swimming upstream? Barthold, Jim // Telephony;04/16/2001, Vol. 240 Issue 16, p16 

    Offers a look at the broadband Internet service of wireless service provider e-xpedient/CAVU that uses free space optics and broadband fixed wireless radios. Architecture of the technology; Business model of the company; Transmission method of the technology.

  • Investigations of Quantum Cascade Lasers for Free Space Optics Operating at the Wavelength Range of 8-12 μm. Nowakowski, M.; Gutowska, M.; Szabra, D.; Mikolajczyk, J.; Wojtas, J.; Bielecki, Z. // Acta Physica Polonica, A.;Nov2011, Vol. 120 Issue 5, p705 

    The paper presents analysis and preliminary investigations of quantum cascade lasers for free space optics. The lasers radiate in the long wavelength IR spectral range (8-12 μm). Because of lower effects of radiation scattering than in the case of 1.5 μm free space optics, better...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics