'Smart antennas' diaporamas de présentation

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?? ??? ???. ????? ?????? ???????. ????? ???? ??? ????? ??????. History of wireless communication. 1897: Marconi demonstrated transmission of radio waves to a ship at sea 29 km away 1915: Wireless telephony established-- Virginia and Paris 1920's: Radio broadcasting became popular

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Fourth Generation Cellular Systems and Smart Antennas

Fourth Generation Cellular Systems and Smart Antennas. Jack H. Winters. April 11, 2002 jack@jackwinters.com. Goal. Wireless communications, anywhere, in any form In any form: high-speed data (Internet) voice audio (music) video Anywhere: home buildings (office) pedestrian vehicles

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Fourth Generation Cellular Systems and Smart Antennas

Fourth Generation Cellular Systems and Smart Antennas. Jack H. Winters. April 10, 2002 jack@jackwinters.com. Goal. Wireless communications, anywhere, in any form In any form: high-speed data (Internet) voice audio (music) video Anywhere: home buildings (office) pedestrian vehicles

439 views • 34 slides

Enhancing Network Throughput in Wireless Ad Hoc Networks using Smart Antennas

Enhancing Network Throughput in Wireless Ad Hoc Networks using Smart Antennas. Vivek Jain. Outline. Introduction Antenna System Smart Antenna System Enhancing Network Throughput in Wireless Ad Hoc Networks using: Directional Antennas Smart Antennas Conclusions. Introduction.

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Overview of 3G Packet Data

Overview of 3G Packet Data. Salih Ergut 7/16/2003. Outline. cdma2000 packet data architecture and network elements Simple IP/Mobile IP Packet Network Nodes State Machines MAC Layer Packet Data Call Flows 1x EV-DV ( 1x RTT Ev olution for high-speed integrated D ata and V oice)

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National Spectrum Managers Association: Spectrum Management 2005

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SMART ANTENNA SYSTEMS ( an overview ) EE 525 Antenna Engineering

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SMART ANTENNA SYSTEMS ( an overview ) EE 525 Antenna Engineering

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SMART ANTENNA SYSTEMS Antenna Engineering

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Beware of COBRA ! CO mputer B ased R adio and A ntennas

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SMART ANTENNA SYSTEMS

SMART ANTENNA SYSTEMS. SMART ANTENNA SYSTEMS Increasing use in Mobile Wireless Communications du e t o demand for Higher Capacity Higher Coverage Higher bit rate Improved link quality Mobility. Smart Antenna A ntenna with a digital signal processing

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EMERGING TECHNOLOGIES IN WIRELESS

EMERGING TECHNOLOGIES IN WIRELESS. Jack H. Winters. Chief Scientist, Motia jwinters@motia.com. Outline. Technologies Service Limitations Multiplatform Systems Conclusions. SUMMARY. New wireless technologies: Physical Layer: WiFi (IEEE802.11a/b/g, n) WiMax UWB Bluetooth

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Little Wireless and Smart Antennas Jack H. Winters jwinters@motia.com 2/26/04

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SMART ANTENNAS FOR TDMA

SMART ANTENNAS FOR TDMA. Jack H. Winters. AT&T Labs - Research Red Bank, NJ 07701-7033 jhw@research.att.com September 7, 2000. Uplink Adaptive Antenna. SIGNAL. SIGNAL OUTPUT. INTERFERENCE. BEAMFORMER WEIGHTS. BEAM SELECT. SIGNAL. BEAMFORMER. INTERFERENCE. Smart Antennas for TDMA.

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Smart antenna systems without any complaints

First, smart antenna systems can be used to boost the telecommunications system within a company.

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The company is a professional engineering firm based in Florida

The company is a professional engineering firm based in Florida

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The company is a professional engineering firm based in Florida

The company is a professional engineering firm based in Florida

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Companies is a able to develop smart antennas

Companies is a able to develop smart antennas

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A smart antenna manufacturing company Florida

A smart antenna manufacturing company Florida

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