Categories: All - detection - signals - equipment - interference

by Graeme Smith 17 years ago

506

"Dirty" WiFi Trials

A detailed examination of various WiFi-enabled environments reveals the intricacies of wireless signal behavior and the impact of different conditions on data transmission. The study contrasts controlled and uncontrolled locations, identifying factors such as interference from other devices, signal strength, and the presence of obstacles.

"Dirty" WiFiTrials

Fixed

Receivers
Reciever

Rx only

Node 1

Directional

Equipment

Storage
Data

USB Drive

DVDs

"Calibrated"

Etc

Opprtunity
Transmitter

Activities

Data transfer

Laptops

D-Link Router
Access Point
Receiver
Antennas

Patch

One

15°/30°

Six

Spectrum analyzer

Investigate

NetRAD

Channels

Sychronized

3

Flexible

Records

Persmission
Bookings
Health & Safety
Security
Cloisters
E&EE Building

Barlow Room

Small

Corridoor

Realistic

Limits

Space

Users

Sports Hall

Astor College

Bloomsbury

ULU

Clutter

Map

Stationary
Flat Plate

Dismantled

Cylinder
Moving
People

Opportunity

Volunteers

Motions

Walking

Running

Groups

Individuals

Detection

Uncontrolled
Heath & Safety

Cables

WiFi Enabled

Used

Situation

Unknown!

Locations

No WiFi

D-Link

Empty

Situations

Bad

Good

Range

Doppler

Characterization

Real
Traffic

Lecture

Lunch

None

Late

Early

Lecture Theatre

JBR

Library

RoamNET
Controlled
Network

Busy

Idle

Beacon
Waveform
Modulation
Standard

802.11

g

b

a

rare in uk

Bandwidth

Prediction

Location
Mapping
Deadspots
Hotspots
Others

Bluetooth

Phones

Networks
Multipath
Objects
Walls
Floor
Bounces

Multiple

Possibilities

Many

Complex

Single

Simpler

Powers
Dependencies

Environment

Topologies

Targets

Noise
Signal

Interference

Direct

DSI--Target Ratio

Echo

Reference