Upload
dilip-chudasama
View
255
Download
12
Embed Size (px)
Citation preview
8/18/2019 99561420 Wireless Communication Ppt
1/20
WIRELESS
COMMUNICA
TIONBY
INDU SAGAR
10R91A04A2
TEJASWINI
10R91A0449
8/18/2019 99561420 Wireless Communication Ppt
2/20
contentsINTRODUCTION
History
Wir!ss "o##$%i"&tio%
A''!i"&tio%s
C&t(oris o) *ir!ss i#'!#%t&tio%s+,-i"s &%, st&%,&r,s
Co%"!$sio%
8/18/2019 99561420 Wireless Communication Ppt
3/20
I%tro,$"tio%.
In 1895,Guglielmo Marconi opened the wayfor modern wireless communications bytransmitting the three-dot Morse code for theletter ‘! o"er a distance of three #ilometersusing electromagnetic wa"es$
%rom this beginning, wireless communications
has de"eloped into a #ey element of modernsociety$
%rom satellite transmission, radio andtele"ision broadcasting to the now ubi&uitous
mobile telephone, wireless communicationshas re"olutioni'ed the wa societies function$
8/18/2019 99561420 Wireless Communication Ppt
4/20
History. (he term )*ireless) came into public use to refer to a radio recei"er or
transcei"er, establishing its usage in the +eld of wireless telegraphy early on
ow the term is used to describe modern wireless connections such as incellular networ#s and wireless broadband Internet$
It is also used in a general sense to refer to any type of operation that isimplemented without the use of wires, such as )wireless remote control) or)wireless energy transfer), regardless of the speci+c technology that is used toaccomplish the operation$
EARLY WIRELESSWOR/.
191/ - %irst "oice o"er radio transmission$
190s - Mobile recei"ers installed in police cars in 2etroit$
193s - Mobile transmitters de"eloped4 radio e&uipment
occupied most of police car trun#$
1935 - %re&uency modulation %M6 demonstrated by 7rmstrong
19/s - Maority of police systems con"erted to %M$
8/18/2019 99561420 Wireless Communication Ppt
5/20
8/18/2019 99561420 Wireless Communication Ppt
6/20
WIRELESS
COMMUNICATION.*ireless communication is the transfer of information o"er a
distance without the use of electrical conductors or )wires$
(he distances in"ol"ed may be short a few meters as in
tele"ision remote control6 or long thousands or millions of #ilometers for radio
communications6$
*hen the conte:t is clear, the term is often shortened to)wireless)$
*ireless communication is generally considered to be a
branch of telecommunications$
8/18/2019 99561420 Wireless Communication Ppt
7/20
ELECTROMAGNETIC SECTRUM.;ight, colors, 7M and %M radio and electronic
de"ices ma#e use of the electromagneticspectrum$
In the
8/18/2019 99561420 Wireless Communication Ppt
8/20
8/18/2019 99561420 Wireless Communication Ppt
9/20
ALICATIONS O WIRELESS
TECHNOLOGY.1 SECURITY SYSTEMS.
7nti-theft >eporting
?mergency >eporting7rm@2isarm by M
Monitoring@ (al#ing
Aower %ailure >eporting
8/18/2019 99561420 Wireless Communication Ppt
10/20
2 TELE3ISION REMOTE CONTROL.
7 remote control is an electronic de"ice used
for the remote operation of a machine$=ommonly, remote controls are consumer I>
de"ices used to issue commands from adistanceto (B or 2B2
Most of these remotes communicate to theirrespecti"e de"ices "ia infrared signals and fewradio signals$
8/18/2019 99561420 Wireless Communication Ppt
11/20
CELLULAR TELEHONY. 5HONES AND MODES6
(he best #nown e:ample of wirelesstechnology is the cellular telephone andmodems$
(hese instruments use radio wa"es to enable
the operator to ma#e phone calls from manylocations world-wide$
8/18/2019 99561420 Wireless Communication Ppt
12/20
8/18/2019 99561420 Wireless Communication Ppt
13/20
4WI7I.
*i-%i technology deli"ers highly sophisticated
phones to ta#es you towards new roads ofe:cellence$
*i %i phones pro"ides you with a new andcost-eCecti"e way to tal# o"er the Internet,
with great functionality li#e 3G =alling, =all*aiting, =all (ransfer and many other usefulfeatures$
%i phones are a"ailable with the brands such
as o#ia, ony ?ricsson, Motorola, amsung
8/18/2019 99561420 Wireless Communication Ppt
14/20
8/18/2019 99561420 Wireless Communication Ppt
15/20
8 WIRELESS ENERGY TRANSER.
*ireless energy transfer is a process whereby
electrical energy is transmitted from a powersource to an electrical load that does not ha"ea built-in power source, without the use ofinterconnecting wires $
8/18/2019 99561420 Wireless Communication Ppt
16/20
8/18/2019 99561420 Wireless Communication Ppt
17/20
COMUTER INTERACE DE3ICES.
8/18/2019 99561420 Wireless Communication Ppt
18/20
8/18/2019 99561420 Wireless Communication Ppt
19/20
: CATEGORIES O WIRELESSIMLEMENTATION+DE3ICES AND STANDARDS.
>adio communiction system
Eroadcasting7mateur radio
;and Mobile >adio
=ommunication >adio
=ordless (elephonyH2?=(2igital ?nhanced =ordless (elecommunication6
=ellular ystemsHG,1G,0G,3G,Eeyond3G/G6,%uture wireless
8/18/2019 99561420 Wireless Communication Ppt
20/20
CONCLUSION.
Ey using wireless communication we can easily transfer the databecause it is portable>eliable;ightweight 7nd cheap in cost