7/26/2019 MTECH PPT 2

1/14

PROPOSED BY:SHAVEL

2K14-MRCE-MTECH-ECE-07

UNDER THE GUIDENCE OF:

MR. ANAND SINGH RAJPOOT

MR. LOKESH BHARDAJMR. ABHISHEK ANAND

BER Performance ComparisonAnalysis of Various Different STBC

Diversity Schemes in Fading

Environment

7/26/2019 MTECH PPT 2

2/14

INTRODUCTION! MIMO

! Goal of MIMO

! STBC (Space-Time Block Code)

OBJECTIVE

RESULTS

! BER e!fo!ma"ce of Diffe!e"# STBC Sc$eme% (&S')

! BER e!fo!ma"ce of Diffe!e"# STBC Sc$eme%(-S')

! BER e!fo!ma"ce of Diffe!e"# STBC Sc$eme%(*-&+M)

CONCLUSION

RE,ERENCES

CONTENT

7/26/2019 MTECH PPT 2

3/14

Ml#iple I. Ml#iple O./

C$a""el 0i#$ ml#iple a"#e""a% a# #$e #!a"%mi##e! a"d ml#iplea"#e""a% a# #$e !ecei1e!/

+ MIMO C$a""el Rep!e%e"#a#io"2

MIMO

7/26/2019 MTECH PPT 2

4/14

3 'e4 +d1a"#a5e% of MIMO2

I"c!ea%ed !elia6ili#4 o6#ai"ed #$!o5$ di1e!%i#4/

7i5$e! da#a !a#e o6#ai"ed #$!o5$ %pa#ial

ml#iple8i"5/

GOAL OF MIMO

7/26/2019 MTECH PPT 2

5/14

T$e %pace9#ime (ST) codi"5 i% mo!e 6a"d0id#$-efficie"#codi"5 %c$eme ----:#!a"%mi#% a" i"fo!ma#io" %4m6ol 6lock i"

a diffe!e"# o!de! f!om eac$ a"#e""a/

T$e di1e!%e copie% of #$e da#a #!a"%mi##ed a!e !ecei1ed 0i#$ml#iple !ecei1i"5 a"#e""a%/

+ll #$e copie% of #$e !ecei1ed %i5"al a!e com6i"ed i" a"op#imal 0a4 #o e8#!ac# i"fo!ma#io" f!om eac$ of #$em/

STBC (SPACE-TIME BLOCK CODES)

7/26/2019 MTECH PPT 2

6/14

STBC (SPACE-TIME BLOCK CODES)

Space"Time coded #$#% system

7/26/2019 MTECH PPT 2

7/14

OBJECTIVE

T$i% p!e%e"#a#io" de%c!i6e% diffe!e"# %pace9#ime codi"5

%c$eme% a"d a"al4%e% #$ei! pe!fo!ma"ce i" Ra4lei5$ fadi"5/

T$e foc% of a##e"#io" i% mai"l4 o" BER (Bi# e!!o! !a#e)

pe!fo!ma"ce of diffe!e"# modla#io" %c$eme% fo! 1a!io%

STBC i" Ra4lei5$ fadi"5 c$a""el i% compa!ed ; a"al4%ed/

7/26/2019 MTECH PPT 2

8/14

RESULTS

BER performance for QPSK with STBC (3 4), Alamoti (! !),

an" Alamoti (! #)

7/26/2019 MTECH PPT 2

9/14

RESULTS

BER performance for $%PSK with STBC (3 4), Alamoti (! !),

an" Alamoti (! #)

7/26/2019 MTECH PPT 2

10/14

RESULTS

BER performance for #&%QA' with STBC (3 4), Alamoti (! !),

an" Alamoti (! #)

BER performanceof STBC &' ( )* is+etter thanAlamouti , ( , -

Alamouti , ( ./

7/26/2019 MTECH PPT 2

11/14

e!fo!ma"ce of appl4i"5 STBC i" #$e MIMO %4%#em i% i"1e%#i5a#edo1e! diffe!e"# modla#io"% i" faded e"1i!o"me"#/

T$e < 8 = %pace #ime 6lock coded MIMO $a% mo!e %pa#ial di1e!%i#4 fo!

i"c!ea%e #$e pe!fo!ma"ce %4%#em/

STBC 0i#$ lo0e! modla#io" o!de! al0a4% 5i1e lo0 BER> 0$e"compa!ed 0i#$ STBC #$a# emplo4 $i5$e! o!de! modla#io" #ec$"i?e%

%o i" - S'> SNR i% $i5$e! #$a" &S' a"d BS' fo! #$e %ame BER/

I# i% al%o a"al4@ed #$a# 64 i"c!ea%i"5 "m6e! of a"#e""a%> BERpe!fo!ma"ce 0ill 6e imp!o1ed %o diffe!e"# "m6e! of a"#e""a a# #$e

#!a"%mi##e! a"d !ecei1e! %ide ca" 6e c$o%e" %o #$a# #$e di1e!%i#4 5ai"

0ill 6e ma8imm/

CONCLUSION

7/26/2019 MTECH PPT 2

12/14

/ V Ta!ok$> N Se%$ad!i> +R Calde!6a"k> ASpace-#ime code% fo! $i5$ da#a !a#e 0i!ele%%

comm"ica#io"2 pe!fo!ma"ce c!i#e!io" a"d code co"%#!c#io"> IEEE T!a"%/ I"fo!m/T$eo!4/ 44> ==9* ()/

F/ '/ Ti0a!i ; Da1i"de! S Sai"i> ABER e!fo!ma"ce Compa!i%o" of MIMO S4%#em

0i#$ STBC a"d MRC o1e! Diffe!e"# ,adi"5 C$a""el%> IEEE T!a"%/ i!ele%%

Comm"/> 1ol/ pp/ ==-=> Ja"/ FH=/

+"a"d Si"5$ Rapoo#> Loke%$ B$a!d0a> +6$i%$ek +"a"d>

ACompa!i%o" of BER e!fo!ma"ce ; Capaci#4 +"al4%i% of MIMO S4%#em 0i#$ STBC

; MRC #o imp!o1e Li"k e!fo!ma"ce i" ,adi"5 E"1i!o"me"#> I"#e!"a#io"al Jo!"al of

Scie"#ific E"5i"ee!i"5 a"d +pplied Scie"ce> Vol/F> I%%e-> Ma4 FH*/

=/ / C$e"> / C$i> K/ Li> a"d B/ Kce#ic> E!!o! pe!fo!ma"ce of ma8imal !a#io

com6i"i"5 0i#$ #!a"%mi# a"#e""a %elec#io" i" fla# Naka5ami-m fadi"5 c$a""el%> IEEE

T!a"%/ i!ele%% Comm"/> 1ol/ > "o/ I> pp/ =F=-= Ja"/FHH/

REFERENCES

7/26/2019 MTECH PPT 2

13/14

/ '/ Ti0a!i> +/ Jai" a"d S/K/ C$a!$a#e> BER +"al4%i% of Naka5ami-m C$a""el% 0i#$diffe!e"# Modla#io" Tec$"i?e% a"d T!a"%mi# Di1e!%i#4> !oc/ of IEEE I"#e!"a#io"al

Co"fe!e"ce (ICMFCSH)> Ne0 Del$i/ =- Dec/ FHH> pp/I- + %imple #!a"%mi# di1e!%i#4 #ec$"i?e fo! 0i!ele%% comm"ica#io"%>

IEEE T!a"%/ Sel/ +!ea% Comm" // > 1ol/ *> pp/ = - => Oc#/ /

/ Ge%6e!#> D/> e# al/ (FHH e!fo!ma"ce a"al4%i% of %pace #ime codi"5

0i#$ impe!fec# c$a""el e%#ima#io"> IEEE T!a"%/ i!ele%% Comm"/> 1ol/ => pp/ F-F*>

Ja"/ FHH/

REFERENCES

7/26/2019 MTECH PPT 2

14/14

T0A12 3%4