–

Communication Systems

by Simon Haykin, John Wiley & Sons Inc. 4th Ed.

Communication Systems Engineering

by John G. Proakis , Masoud Salehi Prentice Hall

2 nd Ed. 2001

Digital & Analog Communication Systems

Leon W.Couch Prentic Hall 6th edition 2001

Communication Systems

A.B Carlson Mc Graw-Hill 4th edition 2001

By K.S. Shanmugam

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PSTN

–

–

–

AM

FM

–

–

–

–

–

wireless network

–

Bluetooth

Broadcasting

Local Switching

Office (Exchange)Local Switching

Office (Exchange)

Long Distance Lines

(Fiber)Local Line

(Twisted Pair)

Fax

Modem

-

voice

ADSLMbps

-

BTS

-

-

BSBS

MTSO PSTN MTSO

BSInternet

-

PSTN

BSBS

MTSO PSTN MTSO

BSInternet

-

FM

-Local Area Networks (LANs)

LAN

01011011

1011

01010101

101101011011

LANs

LAN

01011011

Internet

Access

Point

0101 1011

-WAN Wide Area Networks

backboneLAN

MAN

01011011 Internet

1011

0101

Bridge MANLAN

Satellite andFiber Lines

Bridge LAN

-WAN

MANLAN

Bridge

01011011 Internet

1011

0101

Bridge MANLAN

Satellite andFiber Lines

Bridge LAN

WAN

TCP /IP

-

-

LEO=Low Earth Orbit

GEO=geo synchronous

Bluetooth

Bluetooth

2.4GHZ100 m -10

721kbps

Digital TV

: Software Radio

software

Remote learning

Telemedicine

:

source m(t)

b

sink

source m(t)

b

sink

source m(t)

b

sink

CW

Amplitude Modulation (AM )

Frequency Modulation (FM )

Phase Modulation (PM )

Frequency Division Multiplexing (FDM)

Time Division Multiplexing (TDM)

time slot

Code Division Multiplexing (CDM)

Wave Division Multiplexing (WDM)

FDM

bps

Pb,

Pb

CPb

B