'Mobile radio' diaporamas de présentation

3G Tutorial

3G Tutorial. Outline. History and evolution of mobile radio Brief history of cellular wireless telephony Radio technology today: TDMA, CDMA Demographics and market trends today 3G vision, 3G migration paths Evolving network architectures Based on GSM-MAP or on IS-41 today

1.47k views • 123 slides

EEE 264-5: 3 G Wireless Networks

EEE 264-5: 3 G Wireless Networks. 3 G Wireless Networks. History and Evolution of Mobile Radio Evolving Network Architectures Evolving Services Applications. First Mobile Radio Telephone 1924. Courtesy of Rich Howard. Landline Subscribers. ( millions). Mobile Subscribers.

1.03k views • 102 slides

2012 VHF Radio Template Changes

858 views • 71 slides

Lecture 5: Large-Scale Path Loss

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697 views • 47 slides

Algorithms for Radio Networks Winter Term 2005/2006 18 Jan 2006 12th Lecture

Algorithms for Radio Networks Winter Term 2005/2006 18 Jan 2006 12th Lecture. Christian Schindelhauer schindel@upb.de. Mobility in Wireless Networks (talk to be held at SOFSEM 2005). Introduction Wireless Networks in a Nutshelf Cellular Networks Mobile Ad Hoc Networks Sensor Networks

535 views • 43 slides

Narrowbanding

519 views • 40 slides

Mobile Ad Hoc Networks Routing 10th Week 27.06.-29.06.2007

Mobile Ad Hoc Networks Routing 10th Week 27.06.-29.06.2007. Christian Schindelhauer. Destination-Sequenced Distance-Vector (DSDV) [Perkins94Sigcomm]. Each node maintains a routing table which stores next hop towards each destination a cost metric for the path to each destination

520 views • 39 slides

Mobile Ad Hoc Networks Routing 10th Week 27.06.-29.06.2007

Mobile Ad Hoc Networks Routing 10th Week 27.06.-29.06.2007. Christian Schindelhauer. Destination-Sequenced Distance-Vector (DSDV) [Perkins94Sigcomm]. Each node maintains a routing table which stores next hop towards each destination a cost metric for the path to each destination

399 views • 39 slides

Stone Mountain, Ltd. Introduction

Stone Mountain, Ltd. Introduction. Established in January 2002. Business model is to provide high quality, extremely rugged and reliable speaker microphones to the land mobile radio (LMR) market, focusing on Public Safety, Emergency Response, Military and Industrial applications.

463 views • 36 slides

Mobile Radio and Self-Regulation July 2006

469 views • 36 slides

Amateur Radio and Performance Rally

747 views • 25 slides

373 views • 18 slides

E-Health in the Latin America and Caribbean Region

E-Health in the Latin America and Caribbean Region. A Review of the World Bank Portfolio. What is E-HEALTH?. The APPLICATION of information and communications technology for health services delivery, including mobile health (mHealth), health information systems

316 views • 17 slides

Survivability Considerations for Design of Government Private Wireless Networks

Survivability Considerations for Design of Government Private Wireless Networks. Clay Whitehead Motorola Networks and Enterprise. Private Land Mobile Radio. What is Land Mobile Radio?. Terrestrial based wireless communications Offers customized coverage, capacity, control and feature sets

290 views • 16 slides

Frequency Reallocation Background

Frequency Reallocation Background.

215 views • 14 slides

? B or not dB

? B or not dB. http://www.unav.es/adi/servlet/Web2?course=80957943&action=verWeb&pagina=21510. ? B or not dB. Ratio of two quantities. Large numerical ranges. Example Mobile radiobase station transmits approx. a power of 80W Mobile phone receives only about 0.000 000 002W = 2nW

216 views • 8 slides

Land Mobile Radio Market Size, Application Analysis, Growth, Trends And Forecasts, 2012 To 2020

Land Mobile Radio technology is a wireless communications system projected for utilization by worldwide users on foot portables or in vehicles This LMR systems are used by emergency responder organizations such as fire fighters, ambulance service, police, and dispatched services, public work organizations such as numerous field staff, taxis, and companies with large vehicle fleets.

139 views • 4 slides