'Cellular system' diaporamas de présentation

Overview of GSM Cellular Network and Operations

Overview of GSM Cellular Network and Operations. Network and switching subsystem. NSS is the main component of the public mobile network GSM switching, mobility management, interconnection to other networks, system control Components

1.13k views • 90 slides

Cellular Wireless Networks

Cellular Wireless Networks. Dr. R. K. Rao. Early Mobile Systems. Objectives of Early Mobile Radio Systems Achieve large coverage area Used single high power transmitter Impossible to reuse frequency without interference

1.2k views • 64 slides

Wireless Communication GSM Network Architecture Architecture, functions and protocols

Wireless Communication GSM Network Architecture Architecture, functions and protocols. Tanvir Ahmad Niazi Tanvir.niazi@mail.au.edu.pk Air University, Islamabad. Objectives. After completing this lesson you will be able to: List the 3 sub-systems of a GSM system and their interfaces;

966 views • 63 slides

Wireless & Mobile Networking: Cellular Concept

Wireless & Mobile Networking: Cellular Concept. Azizol Bin Abdullah azizol@fsktm.upm.edu.my (A2.04). Chapter 2: Cellular Concept. Cell Cell Structure Cell Splitting VS Cell Sectoring Frequency Reuse Cochannel Interference Handoff Region Some Computations. Terminology.

896 views • 49 slides

Chapter 5

Chapter 5. Personal Communications Services. Personal Communications Services (PCS).

547 views • 48 slides

Data and Computer Communications

Data and Computer Communications. Tenth Edition by William Stallings. Chapter 10. Cellular Wireless Network.

685 views • 41 slides

Wireless Application Protocol

Wireless Application Protocol. Cellular Network. Introduction. Early mobile system objective was to achieve a large coverage using single high power antenna Impossible to reuse the same frequencies in the same coverage area.

524 views • 41 slides

Wireless Mobile Telephony

Wireless Mobile Telephony. Arian Durresi CIS Department The Ohio State University Columbus, OH 43210 Durresi@cse.ohio-state.edu. http://www.cse.ohio-state.edu/~durresi/. Overview. Why wireless mobile telephony ? First Generation, Analog technologies Second Generation, Digital :

467 views • 32 slides

CELLULAR NETWORK

610 views • 26 slides

ALLAH

ALLAH. Wireless & Mobile Communications. Compiled by : Engr.Muhammad Waseem Assistant Professor , Telecom Eng.Deptt . Sir Syed University of Engineering & Technology, Karachi, Pakistan. Email ID:engrmwaseem@gmail.com Office: CF-02,FFT-10. Channelization.

533 views • 26 slides

Introduction to Systems Biology

Introduction to Systems Biology. Craig Simpson. What is a system?. A collection of components organized to accomplish a specific function of set of functions A group of interacting, interrelated, or interdependent elements or parts that function together as a whole to accomplish a goal.

457 views • 25 slides

Wireless Systems

Wireless Systems. Cellular Concept. Introduction. Technically speaking a cell is formally defined as an area wherein the use of radio communication resources by the MS is controlled by a BS.

374 views • 24 slides

Interference ,Trunking and GOS

Interference ,Trunking and GOS. Interference. Interference in voice channels can cause Cross talk Interference in control channels leads to missed and blocked calls Interference is major bottleneck in increasing capacity and is often responsible for dropped calls

1.37k views • 22 slides

RADIO AND TELEVISION BROADCASTING

RADIO AND TELEVISION BROADCASTING. AM Radio FM Radio Television. 3.4.1 AM Radio Broadcasting . AM Radio Broadcasting 535-1605 kHz 10 kHz carrier spacing bandwidth of m(t) is 5kHz. Superheterodyne receiver with intermediate frequency

3.95k views • 18 slides

Handoff in Cellular Systems

Handoff in Cellular Systems. Defining Handoffs. What? Why? When?. Major Topics. Deployment scenarios and handoff Resource management in cellular system Implementation of handoff Analysis of handoff algorithms. Deployment scenarios and handoff. Macrocells.

456 views • 17 slides

GSM: A European Success Story.

GSM: A European Success Story. Interaction between major players within National Systems of Innovation in a Nordic Perspective (and an Outsider Perspective on China) Syros seminar, 11 July 2008 Bent Dalum DRUID/IKE and Center for TeleInFrastructure Department of Business Studies

284 views • 15 slides

Cellular Telephones

Cellular Telephones. How Do They Work and Are They Safe? Meagan Morrell May 3, 2000. What Is a Cell Phone?. A cell phone is nothing but a radio. They work like a two-way walkie-talkie that acts like a phone.

305 views • 15 slides

Random Thoughts on MobiCom 2004

Random Thoughts on MobiCom 2004. Conference Facts. 326 submissions 88 selected for discussion TPC meeting: 26 selected on final program 9 sessions, single-track Acceptance ratio: ~8% 65% are student papers One Panel Wireless Mesh Network. Workshop Facts. 5 Workshops

301 views • 14 slides

Broadband Wireless Communication System for Public Safety

Global Standards Collaboration (GSC) 14. Broadband Wireless Communication System for Public Safety. Homare Murakami, Masayuki Oodo, Hiroshi Harada NICT / ARIB.

162 views • 6 slides

VLR & HLR

VLR & HLR. VLR & HLR. Visitor Location Register (VLR): AVLR is acurrent subset of HLR for a particular cell. Whenever a subscriber enters a new cell, its current location is stored in VLR representing that cell. The entry is removed when the subscriber leaves that cell.

382 views • 4 slides