basic examples - step1-4
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Basic Examples - Step1-4TRANSCRIPT
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Basic examples of settingBasic examples of setting
simulationssimulations
European Communications Office
Jean-Philippe Kermoal (ECO)
October 2010
EUROPEAN
COMMUNICATIONSOFFICE
Nansensgade 19
DK-1366 CopenhagenDenmark
Telephone: + 45 33 89 63 00
Telefax: + 45 33 89 63 30
E-mail:[email protected]
Web Site:http:!!!.ero.dk
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OutlineOutline
' Step 1 o" is the *+SS calculate*,
' Step 2 first interference probabilitcalculation
' Step . Probabilit of interference' Step / here *oes the interference come from,
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Step 1Step 1
!o" is t#e $RSS calculate$%!o" is t#e $RSS calculate$%
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Define Victim receiver (Vr)Operating frequencyReceiver bandwidthAntenna Characteristics
Interference criteriaNise f!r
Define "anted transmitter ("t)#$ pwerAntenna characteristics
%sitin the "t vs Vr
&u wi!! !earn frm 'tep hw t
Ca!cu!ate the dR''
#est prpagatin mde!
*aunch simu!atin
+$tract dR'' vectrs
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SEAMCAT scena&ioSEAMCAT scena&io
WantedTransmitte
r(Wt)
VictimReceive
r(Vr)
WantedReceiver
(Wr)
Interfering
Transmitter(It)
dRSS
iRSS
Victim link
Interferinglink
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'ictim (in)'ictim (in)
WantedTransmitte
r(Wt)
VictimReceiver
(Vr)
dRSS
Victimlink
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*efine 'ictim f&e+uenc,*efine 'ictim f&e+uenc,
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*efine 'ictim Recei-e& .'R/*efine 'ictim Recei-e& .'R/
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*efine 0ante$ T&ansmitte&*efine 0ante$ T&ansmitte&
.0t/.0t/
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Position of t#e 0t .12/Position of t#e 0t .12/
Uncorrelated cases mode
User-defned Radius
Correlated cases mode
Correlated distance (origin = Wt)
Noise limited Network
Trac limited Network
Wt rlocation
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Position of t#e 0t .22/Position of t#e 0t .22/
WantedTransmitte
r(Wt)
VictimReceive
r
(Vr)
dRSS
Victimlink (0,0)
(2 km,2km)
Delta X = 2km
D
el
ta
Y
=
2k
m
!
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Calculation of t#e $RSSCalculation of t#e $RSS
' *+SS 5 Pe67e67r-8
'*+SS 5 .0(*9m)64 (*9i)64 (*9i)-101:& (*9)
' *+SS 5 -&.:&*9m
( )fd
hhL
rxtx log201000
log105.32 22
+
+
+=
' 8 5 .2:&610lo%(3)620lo%(1000))
' 8 5 101:& *9
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Testing p&opagation mo$elTesting p&opagation mo$el
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(aunc# simulation(aunc# simulation
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Ext&act $RSSExt&act $RSS
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Output $ispla,Output $ispla,
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Step 2Step 2
M, fi&st inte&fe&ence p&o3a3ilit,M, fi&st inte&fe&ence p&o3a3ilit,
calculationcalculation
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&u wi!! !earn frm 'tep , hw t
%sitin the Vr vs It (ie Victim !in- vs Interfering !in-)Ca!cu!ate the iR''
Ca!cu!ate the prbabi!ity f
interference
Define Interfering transmitter (It)#$ pwerAntenna Characteristics'et the emissin bandwidth
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Inte&fe&ing (in)Inte&fe&ing (in)
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Inte&fe&ing F&e+uenc,Inte&fe&ing F&e+uenc,
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*efine Inte&fe&ing*efine Inte&fe&ing
T&ansmitte& .It/T&ansmitte& .It/
' P(*9m$9ref) 5 Pe (*9m)6Att(*9c$9ref)
' .. (*9m$200K;) 5 .. 6 0 (*9c$9ref)
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Position of t#e '& -& It .12/Position of t#e '& -& It .12/
Uncorrelated cases mode
None(nacti!einter"erers)
#t $r
Correlated cases mode
#t $Wt Wt $r
Wr$Wt
Uni"orm densit% (nacti!einter"erers)
Closest(single inter"erer)
r #tlocation
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Position of t#e '& -& It .22/Position of t#e '& -& It .22/
VictimReceive
r(Vr)
WantedReceive
r(Wr)
Interfering
Transmitter(It)
WantedTransmitt
er(Wt)
dRSS
iRSS
Victimlink
Interfering link
Delta X = "km
Delt
aY
=
"km
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Calculation of t#e iRSSCalculation of t#e iRSS
' i+SS 5 Pe67e67r-8
' i+SS 5 ..(*9m)611 (*9i)64 (*9i)-(.2:&610lo%(.2)620lo%(1000))
' i+SS 5 -&/:&*9m
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Step 4Step 4
P&o3a3ilit, of inte&fe&enceP&o3a3ilit, of inte&fe&ence
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&u wi!! !earn frm 'tep . hw t
Cmpatibi!ity ca!cu!atin mde
+$tract the %rbabi!ity f Interference in
#rans!atin ca!cu!atin mde
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P&o3a3ilit, of inte&fe&enceP&o3a3ilit, of inte&fe&ence
' !he probabilit of interference coul* be calculate* b the
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Compati3ilit, calculationCompati3ilit, calculation
mo$emo$e
' the C$< (i:e: *+SS$i+SS) can be *eri?e* *+SS$i+SS 5 -&.:&-(-&/:&) 5 1*9
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T&anslation calculationT&anslation calculation
mo$emo$e
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Step 5Step 5
0#e&e $oes t#e inte&fe&ence0#e&e $oes t#e inte&fe&ence
come f&om%come f&om%
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&u wi!! !earn frm 'tep / hw t
Ca!cu!ate the iR'' unwanted
Ca!cu!ate the iR'' b!c-inguser-defined modeSensitivity modeProtection ratio mode
+$tract prbabi!ity f interference
(ie unwanted vs b!c-ing)
0dify the 1nwanted +missin 0as-
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Un"ante$ Emission mas)Un"ante$ Emission mas)
' P 5 .. 6(@2.(*9c$9ref)) 5 10 (*9m$200#;)
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Calculate iRSS un"ante$Calculate iRSS un"ante$' i+SS un"ante* calculate the interferin% po"er
recei?e* b the ictim recei?er "it#in its3an$"i$t#
In t#is example t#e&e is no 3an$"i$t#co&&ection facto& to 3e applie$ to t#e calculationof t#e iRSS un"ante$ since t#e '& 3an$"i$t#an$ t#e It &efe&ence 3an$"i$t# #a-e t#e same-alue .i6e6 277 8!9/6
Unwanted&
fVr fIt
#nter"eringemission maskR #and$idt%
' i+SSun"ante* 5 P67e67r-8
' i+SSun"ante* 5 10(*9m$200#;)61164-
(.2:&610lo%(.2)620lo%(1000))' i+SSun"ante* 5 -:&*9m
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Calculate iRSS 3loc)ing .15/Calculate iRSS 3loc)ing .15/
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Calculate iRSS 3loc)ing .25/Calculate iRSS 3loc)ing .25/
' Bser-*efine* mo*e i+SS bloc#in% (fit) 5 Pe67e67r-8-Att (fit)
i+SS bloc#in% 5 ..(*9m)61164-(.2:&610lo%(.2)620lo%(1000))-/0(*9)
i+SS bloc#in% 5 -4/:&*9m
' !he
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Calculate iRSS 3loc)ing .45/Calculate iRSS 3loc)ing .45/
' Sensiti?it mo*e Attenuation(") 5 #$o%k(") *9mD @ sens&r*9mD 6 C'N+()*9D
Sensiti?it5 >oise loor 6 C$(>6
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Calculate iRSS 3loc)ing .55/Calculate iRSS 3loc)ing .55/
' Protection +atio Attenuation(") 5 #$o%k(") *9mD 6 C'N+()*9D 6 .*9
Attenuation(") 5 /0 61 6. 5 &4 *9
i+SS bloc#in% (fit) 5 Pe67e67r-8-Att (fit)
i+SS bloc#in% 5 -&/:&-&4 5 -11.:& *9m
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P&o3a3ilit, of inte&fe&enceP&o3a3ilit, of inte&fe&ence
.12/.12/
' or the un"ante* mo*e= the C$< can be *eri?e* as *+SS$i+SS un"ante* 5 -&.:&-(-:&) 5 2/*9
' Since the resultin% C$< is abo?e the protection criteria (14 *9)= theprobabilit of interference is 0
' 65 -:&-(-100)5 22:&(since ): Since the ()$> "hich is obtaine* is abo?e theprotection criteria (.*9)= the probabilit of interference is 1
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P&o3a3ilit, of inte&fe&enceP&o3a3ilit, of inte&fe&ence
.22/.22/
' or the bloc#in% mo*e= the C$< can be *eri?e* as *+SS$i+SS bloc#in% 5 -&.:&-(-11.:&) 5 0*9
' Since the resultin% C$< is abo?e the protection criteria (14 *9)= theprobabilit of interference is 0
' 65 -11.:&-(-100)5 -1.:&:Since the ()$> "hich is obtaine* is belo" the protectioncriteria (.*9)= the probabilit of interference is 0
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T#an) ,ou : An, ;uestions%T#an) ,ou : An, ;uestions%