–
Lectures 1 2 telecom -
 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




--












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

-
-
BS
BS
MTSO PSTN MTSO
BSInternet
-
PSTN
BS
BS
MTSO PSTN MTSO
BSInternet
-
FM

-
Local Area Networks (LANs)
LAN

01011011
1011
0101
0101
101101011011
LANs
LAN
01011011
Internet
Access
Point
0101 1011
-WAN
Wide Area Networks
backboneLAN
MAN
01011011 Internet
1011
0101
Bridge MANLAN
Satellite and
Fiber Lines
Bridge LAN
-WAN
MANLAN
Bridge
01011011 Internet
1011
0101
Bridge MANLAN
Satellite and
Fiber 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 )


Lectures 1 2 telecom -

Frequency Division Multiplexing
(FDM)



Time Division Multiplexing (TDM)

time slot
Code Division Multiplexing (CDM)


Wave Division Multiplexing (WDM)
FDM

Lectures 1 2 telecom -





bps
Pb,

Pb

CPb
B

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Lectures 1 2 telecom -