Table of Content

Acknowledgement

Table of Content

Chapter 1	Introduction
		Acknowledgement
		Community based Infrastructure: An Exciting Experience
		The Structure of Community ICT Infrastructure
		People’s Education is The Key
			Intervention by International Bodies / Donor Agencies
			Alternative Financially Sustainable Community Based Movement
			Some of the Trick To Facilitate Local Content Creation
	
Chapter 2	WiFi based Wireless Internet Infrastructure: An Overview
		Some of the Basic Assumptions
WLAN Equipments for Outdoor usage.
		A Glimpse on the Access Point at an Internet Service Provider
		My Home Installation
		Building Neighborhood Point Of Presence
		Practical Installation of A Neighborhood Network

Chapter 3	Preparing Wireless Neighborhood Equipments
		Hardware Preparation
			The Personal Computer
			The Wireless LAN Card
			Pigtail
		Antenna
		Access Point
		Software Preparation for the Router

Chapter 4	A Quick Guide on How To Shop For WiFi Equipments
		Price Estimate of A WiFi Station
		Comparing Prices on the Internet
		Getting Indoor WiFi Equipments
		Outdoor WiFi Equipment
		Getting Radio Equipments
		Shop For Tower And Accessories

Chapter 5	A Simple Introduction to Radio Concepts
		Frequency
		The Wavelength
		Tx Power
		Rx Sensitivity
		Radiated Power
		Energy Losses
		Limiting The Radiated Power
		
Direct Sequence Spread Spectrum (DSSS)
		Frequency Hopping Spread Spectrum (FHSS)
		Free Space Propagation
		Line of Sight

Chapter 6	WLAN Installation in Windows
		WLAN Card Driver Installation
		PC Card Status Utility
		Device Manager
		Configuration Utility for WLAN Card
		Configuring the TCP/IP Network Parameter

Chapter 7	WLAN installation in Linux
		Preparation Stage
		Linux WLAN Supported Device List
		Linux Installation of PC Gateway
		Configuring the WLAN
		A Complete List of Module Parameter
		Some troubleshooting tips
		Monitoring WLAN Performance
		Compiling & Installing WLAN Driver

Chapter 8	Setup Linux Based Wireless Gateway
		Activate WLAN card as eth0
		Simple Routing Technique for the Gateway
		Simple Proxy & Network Address Translation (NAT) Technique

Chapter 9	Configuring An Access Point
		Simple Configuration of an Access Point
		More Example Of Access Point Configuration
		Web Interface
		A Glimpse on Linksys Access Point Web Interface
		Configuration For Congested Network
		Log View

Chapter 10	Antenna and Coaxial Cable
		Type of Antenna
		Coaxial Cable
		Coaxial / Antenna Connector
		Antenna Gain
		Omnidirectional Antenna
		Sectoral Antenna
		Directional Antenna
		Homebrew WiFi Antennas
			USB Tincan Antenna
			USB Parabolic Antenna
			The Famous Tincan Antenna
		Antenna Polarization
		Some Notes on Antenna Installation
		Power Divider For A Simple Repeater
		Vertical Antenna Isolation
		Horizontal Antenna Isolation
		Diversity Antenna: Point-To-Point
		Diversity Antenna: Point To Multipoint
		Grounding System
		Radio Tower For WiFi Infrastructure

Chapter 11	Radio Link Calculation
		Free Space Loss (FSL) Calculation
		Line of Sight (LOS)
		System Operating Margin (SOM) Calculation
		Effective Isotropic Radiated Power (EIRP)
		Aiming the Antenna
		Antenna Tilt Angle
		Down Tilt Coverage

Chapter 12	Site Survey Techniques & Interference Countermeasures
		Equipment To Perform Site Survey
		Some of Questions to Be Asked
		Hand Held Global Positioning System (GPS)
		Site Survey Software on PC
		Interference Countermeasures
			Maximizing the Received Signal Level
			Minimizing the Interference and Noise Level
			Interference Countermeasure Strategies

Chapter 13	Designing WLAN based Metropolitan Area Network (MAN)
		Importance of Metropolitan Area Network (MAN) Design
		Channel Performance Under Load
		Channel in WiFi Infrastructure
		Orthogonal Channel Set
		Range of WLAN Transmission
		Modeling The Radio Coverage Boundary
		MAN Design Based on 3 Orthogonal Channel Set
Omnidirectional Access Point
Sectoral Access Point
		MAN Design Based on 4 Orthogonal Channel
		Insertion of Point To Point (P2P) Links
		Some Note on Antenna Polarization
		Some Note on Sectoral Areas
		Cell Interconnection

Chapter 14	Some Notes On Securing The Infrastructure
		Securing Windows Machine
		Securing a Linux Machine

Chapter 15	NoCat Authentication System
Captive Portal Concept
Typical Connection Process
Software Requirement
Download Nocat
	Gateway Software Requirement
	Authentication Server Software Requirement
Gateway Installation
	Detailed Gatekeeper Installation
	Starting the gateway
Authentication Server Installation
	Quick Installation
	Detailed Installation
Running Authentication Server on Gateway Machine
The NoCat Database

Appendix A	URL of Interest

Appendix B	NoCat Gateway

Appendix C	NoCat Authentication Server Configuration

References