Is Wireless (Data) Dead?

Authorized User

Is Wireless (Data) Dead?

Heilmeier’s Vision

Marconi’s Vision

Presentation Outline

The Wireless Universe

Radio Basics

Radio Basics

Wireless Spectrum

Presentation Outline

Wireless Telephony not Dead!

Proliferation of Wireless Telephony

Cellular Phone Growth

Japan Unplugged

The Lessons of the Japanese Cellular Phone System

PCS = “Pretty Crazy Situation”?

Presentation Outline

Mobile Computing is the Natural Evolution of Computing

Global Markets for Portable Computers

Laptop Sales, Jan-Sept 1995

A Short History of Wireless Data

A Short History of Wireless Data

A Short History of Wireless Data

Some Observations

Technical and Economic Challenges

Promising Developments

Promising Developments

Promising Developments: GPRS

Promising Developments: Wireless Cable

Wireless ATM

What Every Happened to Ubiquitous Computing?

Wireless Data Success Story: UPS

Presentation Outline

Access is the Killer App

Overlay Network Challenge

Application Support Challenge

Wireless Overlay Networks

Proxy Architecture

BARWAN Architecture

BARWAN Architecture

Presentation Outline

Summary

Conclusions