'Air interface' diaporamas de présentation

Wireless Networks

Wireless Networks. Amit Jain and Petter Karal Media Tech Club Sloan School of Management May 2, 2000. Mobile + Internet = . The Mobile Internet. mCo mmerce. The Mobile Internet. wo rk a nywhere. The Mobile Internet. play any where. anytime. anytime. The Mobile Internet.

784 views • 54 slides

NetStream Product Family Overview

692 views • 47 slides

MMD Evolution

MMD Evolution. June xx, 2005 zzz. Introduction. MMD provides core standards for VoIP and real-time multi-media Not just a replacement for circuit-switched voice Other example services: voice/video conferencing, PTT, Presence and Instant Messaging.

496 views • 30 slides

IEEE 802.16e/Mobile WiMAX

IEEE 802.16e/Mobile WiMAX. Gleneesha Johnson CMSC 818Z, Spring 2007 March 06, 2007. Outline. 802.16 Overview Physical Layer MAC Layer. IEEE 802.16 Overview. Family of standards for wireless metropolitan area networks (WMAN) Provide broadband (i.e., voice, data, video) connectivity

679 views • 27 slides

An Overview of the ISO RFID Data Protocol & Library Applications Paul Chartier Project Editor

397 views • 27 slides

INTRODUCTION TO TETRA SECURITY

INTRODUCTION TO TETRA SECURITY. Brian Murgatroyd. Agenda. Why security is important in TETRA systems Overview of TETRA security features Authentication Air interface encryption Key Management Terminal Disabling End to End Encryption. Security Threats.

467 views • 25 slides

WiMAX

WiMAX. Emerging Technologies. Current Scenario. Think about how you access the Internet today. There are basically three different options: Broadband access - In your home, you have either a DSL or cable modem. At the office, your company may be using a T1 or a T3 line.

616 views • 25 slides

Access Methods for RFID: EPC Global UHF Class 1 Gen 2 -18000-6c standard

Access Methods for RFID: EPC Global UHF Class 1 Gen 2 -18000-6c standard. Outline. Objective: Understand the details of RFID with focus on EPC global UHF Class-1 Generation-2 -18000 6-c standard for passive RFID tags. RFID Overview Components of RFID systems Types of RFID

386 views • 21 slides

WCDMA AND WLAN FOR 3G AND BEYOND

WCDMA AND WLAN FOR 3G AND BEYOND. ??? ?? 691430042 ???. Outline. Introduction Glossary UTRAN FDD Mode: WCDMA UTRAN TDD Mode: TD/CDMA WCDMA Evolution From 2G to 3G Three Phases From Release 99 and Release 4 to Beyond 3G Conclusion. Introduction. Glossary.

323 views • 18 slides

New interfaces in NetHawk M5 Playground

302 views • 17 slides

TETRA Applications for Military Communications

TETRA Applications for Military Communications. Radio Branch NATO Command, Control & Consultation Agency. IDENTIFICATION. Does TETRA meet military requirements ? What trails have the military done with TETRA applications ? Does TETRA Security meet military requirements ?

505 views • 16 slides

Requirements Topics and Proposals as discussed at Session #4 of 802.20

288 views • 16 slides

Las Vegas, November 30 2005

Las Vegas, November 30 2005. MEID - Roaming Impacts. Background. 32-bit ESN resource running out MEID is new 56-bit identifier to replace ESN MEID hashed back to fit in ESN field for backwards compatibility This Pseudo-ESN (pESN) may not be unique! Lots of information already available:

409 views • 14 slides

GSM Architecture

GSM Architecture. (Global System for Mobile Communication). Alina Lewis MScIT -I. Mobile Station (MS). MS is a combination of terminal equipment and subscriber data.

439 views • 12 slides

Ari Morse and Cody Nabong

Generating Electricity at Ocean-Air Interface. Ari Morse and Cody Nabong. Procedure. Calibrate thermocouples. Verify online temperatures. Calculate average temperature difference. Choose example Peltier unit. Calculate # Peltier units, cost, and space required.

205 views • 10 slides

2000. 5. 18 ~19, 3 GPP2 All IP Adhoc

HEI All IP Reference Model. 2000. 5. 18 ~19, 3 GPP2 All IP Adhoc. Jaehong Park Ph.D. ,Yeonsang Koo, Inho You, Shinhyun Yang parkjh@hei.co.kr, hwkoo@hei.co.kr, ihyou@hei.co.kr Hyundai Electronics Industry Co., Ltd. Contents. ? Phase Approach ? All IP Network Reference Model Phase I

192 views • 10 slides

Comments on HT PAR & 5 Criteria

Comments on HT PAR & 5 Criteria. HT Goals. Improved throughput Range - distance trades Spectrum agnostic/flexible Encompasses MAC & PHY modifications Tolerable schedule Backward compatible. Sequence of Audiences. Study Group WG SEC IEEE Rev Com Task Group. WG20.

178 views • 10 slides

Support for STA power saving in 802.11v

doc: IEEE 802.11-05/xxx3r0. May 2005. Support for STA power saving in 802.11v. Joe Kwak, Marian Rudolf (InterDigital). Motivation for power saving. Long stand-by and usage time before recharging are very important for battery-operated client devices (any wireless technology)

426 views • 8 slides

IEEE C802.20-04/04

161 views • 4 slides

IEEE C802.20-04/26

IEEE C802.20-04/26. OA&M (4.5.4). Current Text The air interface will provide necessary infrastructure in order for a network operator to monitor the performance of the 802.20 air interface.

101 views • 3 slides