11-11-0272-00-00ah-outdoor-path-loss-models-for-802-11ah

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doc.: IEEE 802.11-11/0272r0

Submission

February 2011

Ron Porat, Broadcom

Outdoor Path Loss Models for 802.11ah

ate: 2011-02-25!uthors:

Slide 1



doc.: IEEE 802.11-11/0272r0

Submission

February 2011

Ron Porat, Broadcom

"u##ary

• Following the discussion in [! on channel models, we add here additional

outdoor "ath loss models #or $acro, $icro, Pico%&ot'one(Rela)* de"lo)ments based on +PP ./ assum"tions and S.2+1 channel models

• t is antici"ated that some o# the scenarios "ro"osed #or 302411ah #it better

&ot'one de"lo)ments and some ma) #it better $acro de"lo)ments

Slide 2



doc.: IEEE 802.11-11/0272r0

Submission

$eca% - L&E Macro Path Loss Models

• $acro cell "ro"agation model #or urban area is a""licable #or scenarios in urban and

suburban areas outside the high rise core where the buildings are o# nearl) uni#orm height

which is assumed to be 12m

• h is the antenna height aboe roo# to" leels and assumed 15m (we "lot "ath loss with 2mantenna as well*

• R is in [6m! and # in [$&'!

• 7ith ./ assum"tions we get 1'.()(7.*+lo,10d at 2&' and where d is the distance in

meters

• Fre8uenc) de"endenc) is seen in the term and contributes 94+dB to the "ath loss

di##erence between 2&' and :00$&'4

• n the #ollowing, we concentrate on "ath loss at 2&' since most ./ models assume

that #re8uenc)4

+

10 10 10- 0 (1 10 h* log (R* 13 log (h* 21 log (#* 30dB−

= × − × × − × + × +

February 2011

Ron Porat, BroadcomSlide +

1021 log (#*×



doc.: IEEE 802.11-11/0272r0

Submission

L&E Mcro-cell syste# s#ulato %ara#eters &able !.2.1.1- 13

February 2011

Ron Porat, BroadcomSlide



doc.: IEEE 802.11-11/0272r0

Submission

Other Path Loss Models

• S. 2+1 - .his "ath loss model #or $acro and $icro de"lo)ments is used in

the S$ channel model [+!

; .he $acro model is based on &ata model and assuming 2&' #re8uenc) we get

('.2)('+lo,10d where d is the distance in meters

; .he $icro model is based on 7al#ish-6egami model and "roides <S and S

models4 .he <S "ath loss model #or 2&' is ('.7)(8+lo,10d. .he S model#or 2&' is ('.7)2*+lo,10d

• 302411n "ath loss model assumes one brea6"oint with S "ro"agation u" to

that "oint and an e="onent (.' a#ter

• ./->danced newer Pico "ath loss model [2! is (0.*)(*.7+lo,10d

February 2011

Ron Porat, BroadcomSlide 5



doc.: IEEE 802.11-11/0272r0

Submission

"u##ary of Outdoor Path Loss Models at 2456

• <ote that ost 2+1 ?rban $acro, the new ./-> Pico and ./ $acro with 2m

antenna height e=hibit similar "ath loss

February 2011

Ron Porat, BroadcomSlide @

101

102

103

-180

-160

-140

-120

-100

-80

-60

-40Path Loss Comparison at 2GHz

Tx-Rx distance [meters]

d B

LTE Macro - 15m

LTE Macro - 2m

LTE Pico

COST231 Urban Macro

COST231 Urban Micro NLOS

LTE Micro Outdoor to Outdoor

11n model with bp=5m



doc.: IEEE 802.11-11/0272r0

Submission

L&E-! Path Loss Models

• ./ Rel410 [2! (./->danced* added newer low "ower &ot'one de"lo)ment

o"tions and introduced newer "ath loss models that are "artiall) based on

measurements conducted b) hina $obile [5![@! and include a <S #ormula

and S #ormula4 ; nitiall) the two com"onents were added together with a weight based on a "robabilit) #unction

but later on changed to be treated se"aratel)4

• For consistenc) [@!, the $acro model was changed to include a S model and

the <S model was adAusted

• &ot'one ?rban $odel

; PS(d*141C204:log10(d*

; P <S(d*+24:C+945log10(d*

; Prob(d*045-min(045,5e="(-15@%d**Cmin(045, 5e="(-d%+0**

• $acro ?rban $odel

; PS(d*+043C242Dlog10(d*

; P <S(d*249C243Dlog10(d*

; Prob(d*min(1,13%d*D(1-e="(-d%@+**Ce="(-d%@+*

February 2011


[ ]( ) ( ) ( ) ( )[ ] ( )d PLd Probd PLd Probmd PL NLOS LOS

⋅−+⋅= 1



doc.: IEEE 802.11-11/0272r0

Submission

L&E-! 5ot6oe Path Loss Models at 2456

February 2011


101

102

103

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1


LOS probability

LTE-A Hotzone

LTE-A Macro

101

102

103

-160

-140

-120

-100

-80

-60

-40


d B

Path Loss Comparison at 2GHz

LTE Macro

LTE-A Hotzone NLOS

LTE-A Hotzone LOSLTE-A Hotzone Combined

LTE-A Macro NLOS

LTE-A Macro LOS

LTE-A Pico



doc.: IEEE 802.11-11/0272r0

Submission

oclusos

• Seeral outdoor "ath loss models are shown with some ariation4

• 7e note that ost2+1 $acro ?rban, ost2+1 $icro ?rban, ./ &ot'one

<S, ./ Pico and ./ $acro with antenna height 2m are er) similar and

models #rom this set can be chosen4

• n addition, a lin6 budget calculation or s)stem simulation should include the

#ollowing com"onentsE

; >dAustment #or di##erent #re8uencies

; Shadow #ading with 10dB std

; Penetration loss #or indoor clients

February 2011

Ron Porat, BroadcomSlide :



doc.: IEEE 802.11-11/0272r0

Submission

$efereces

[1! +PP .R 25431 - Ph)sical la)er as"ects #or eoled ?niersal .errestrial Radio >ccess(?.R>* ; >nne= >42 s)stem simulation scenario

[2! +PP .R +@431 - Further adancements #or /-?.R> "h)sical la)er as"ects, >nne= >42-s)stem simulation scenario

[+! +PP .R 254::@ - .echnical S"eci#ication rou" Radio >ccess <etwor6 S"atial channel

model #or $ulti"le n"ut $ulti"le ut"ut ($$* simulations

[! 11-11-0251-00-00ah-outdoor-channelGmodels-#or-302-11ah4""t

[5! +PP .S-R>< 71 H5@bis, R1-0:15@@, hina $obile, Ioda#one - Rela) to ?/ channel

model #or ./->danced

[@! +PP .S-R>< 71 H53, R1-0:+290, hina $obile - onsideration on e<B-?/ channel

model

February 2011


11-11-0272-00-00ah-outdoor-path-loss-models-for-802-11ah

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