Pusan National University - bungae.kaist.ac.krbungae.kaist.ac.kr/seminar/Material/2007/07_SRF/0602_김석찬.pdf · MIMO-EVDO R.A OFDMA 802.16e EVDO R.0 OFDMA WiBro Wi-Fi OFDM WiMAX

Suk Chan KimCommunication Systems Laboratory,

Dept. Electronics Engineering, PNU

Pusan National University

Dept. Electronics Engineering, PNU Email: [email protected]

mailto:[email protected]

• Introduction

• IEEE 802.16j Overview• IEEE 802.16j Overview

• Technical Issues• Technical Issues

• Performance Evaluation

Pusan National University 2


3.5 G~3.99G3G

HSPA+3GPP LTEHSDPA

WCDMA

EVDO R.BR.B

802.16eMIMO-

EVDO R.A

MIMO-OFDMA

R.A

802.16e

EVDO R.0

802.16eOFDMA

WiBro

Wi-FiOFDM

WiMAX


802.16802.16--2004 Fixed Applications2004 Fixed Applications(Licensed/Unlicensed(Licensed/Unlicensed-- NonNon--LOS: < 11GHz LOS: < 11GHz

& LOS: 10& LOS: 10--66GHz)66GHz)

IEEE 802.20WMAN 802.16

WLAN IEEE

& LOS: 10& LOS: 10--66GHz)66GHz)

WLAN IEEE 802.11UWB, BLUETOOTH

Global IEEE 802.15 802.16e Fixed and Mobile 802.16e Fixed and Mobile

(Licensed : Non(Licensed : Non--LOS: < 6GHz)LOS: < 6GHz)Global Wireless

Standards

(Licensed : Non(Licensed : Non--LOS: < 6GHz)LOS: < 6GHz)

802.16j MMR Mobile Multi-hop RelayMobile Multi-hop Relay

March 2006

802.16m WiMAX 2 IMT - AdvancedIMT - Advanced

Nov 2006



• Uniform broadband experience• Uniform broadband experience– Overcome user throughput dependency on distance-to-BS

• Mobile multihop relay (MMR):• Mobile multihop relay (MMR):– The system function that enables mobile stations to communicate

with a base station through intermediate relay stationswith a base station through intermediate relay stations

• MMR-base station (MMR-BS):– A base station that is compliant with IEEE Std 802.16j and IEEE – A base station that is compliant with IEEE Std 802.16j and IEEE

Std 802.16e


• Capability of RS (Relay Station)• Capability of RS (Relay Station)– Enhance Throughput & Extend Coverage– Simple implementation, low cost– Simple implementation, low cost– Compatible with IEEE 802.16e– Not just amplify-and-forward (AF), or decode-and-forward (DF)

• Relay station (RS) Type:– Fixed relay station (FRS):– Nomadic relay station (NRS):– Nomadic relay station (NRS):– Mobile relay station (MRS):



• The usage modelsI. Fixed Infrastructure Usage ModelII. In-Building Coverage Usage ModelII. In-Building Coverage Usage ModelIII. Temporary Coverage Usage ModelIII. Temporary Coverage Usage ModelIV. Coverage on Mobile Vehicle Usage Model


I. Fixed Infrastructure Usage ModelI. Fixed Infrastructure Usage Model


II. In-Building Coverage Usage ModelII. In-Building Coverage Usage Model


III. Temporary Coverage Usage ModelIII. Temporary Coverage Usage Model


IV. Coverage on Mobile Vehicle Usage ModelIV. Coverage on Mobile Vehicle Usage Model



Frame k Frame k+1

TTG RTG

DL Sub-frame UL Sub-frame

MR-BS MS/RS UL Relay Zone

UL Access Zone

Ranging

Optional Transparent Zone

Prea

mbl

e

FCH

DL MAP

BS

Fram

e UL MAP

Optional R-MAP

Ranging subchannel

P

UL MAPM

R-B

Frame k

DL Sub-frame UL Sub-frame

Frame k+1

MR-BS MS/RS Optional Transparent Zone

UL Access Zone

UL Relay Zone

zatio

n

Receiving

Recei

TTG RTGm

e

Receiving

Zone Zone Zone

Syn

chro

niz Recei

ving

ReceivingR

S Fr

am

Relay RTG Relay RTG



Click to add text

MR-BS → MR-BSMR-BS1 MR-BS2

MR-BS → MR-BS

RS → MR-BS MR-BS → RSRS → MR-BS

MR-BS → RS RS

RS RS RSRS → RS

MR-BS → RS

RS → RS

RS

RS → RS RS → RS


• Original signal is received by several RSs, and • Original signal is received by several RSs, and forwarded to the destination through different paths

• Allowing a set of multiple signal sources to transmit correlated datacorrelated data

– Achieve cooperative diversity gain to improve the performance of the relay networkrelay network


• Cooperative source diversity– Multiple signal sources simultaneously transmit the same signal using

the same time-frequency resource


• Cooperative transmit diversity• Cooperative transmit diversity– Uses space-time block codes across different physical signal sources– This method is based on the use of transmit diversity using STBCs– This method is based on the use of transmit diversity using STBCs

– The received signal from different sources are different, each signal source different, each signal source playing the role of different transmit antenna in the transmit antenna in the conventional STC


• Cooperative hybrid diversity– The two cooperative relaying schemes can be combined– The two cooperative relaying schemes can be combined– If the number of signal sources are greater than the number M in a Mx1

STBC scheme, multiple signal source transmit the same STBC encoded STBC scheme, multiple signal source transmit the same STBC encoded signal


• Better BER performance


• Link robustness

VS

One path survivedNot Survived One path survivedNot Survived


• BW request• BW request• Network Entry• Network Entry• Security• Construction & transmission of MAC PDUs• Measurement & reporting• Measurement & reporting• Mobility management• Mobility management• Routing, path, connection & service flow management• RRM, scheduling & interference control• HARQ• HARQ



MultiMulti--hop Relay System Evaluation Methodologyhop Relay System Evaluation MethodologyMultiMulti--hop Relay System Evaluation Methodologyhop Relay System Evaluation Methodology

• Simulation Overview


Category DescriptionCategory DescriptionMacro-cell suburban, ART to BRT for hilly

Type AMacro-cell suburban, ART to BRT for hilly

terrain with moderate-to-heavy tree densities.

LOS/NLOS

Type B Macro-cell suburban, ART to BRT for intermediate path-loss condition. LOS/NLOS

Type C Macro-cell suburban, ART to BRT for flat terrain with light tree densities. LOS/NLOS

Type D Macro-cell suburban, ART to ART LOSType E Macro-cell, urban, ART to BRT NLOSType E Macro-cell, urban, ART to BRT NLOS

Type F Urban or suburban, BRT to BRT.LOS

NLOSType F Urban or suburban, BRT to BRT.

NLOSType G Indoor Office LOS/NLOSType H Macro-cell, urban, ART to ART LOSType J Outdoor to indoor NLOS


Type J Outdoor to indoor NLOS

• The level of shadow fading (in dB) is usually simulated by dropping a normal distributed random simulated by dropping a normal distributed random variable, this refers to typical log-normal shadow fading modelfading model

• Standard deviation of the shadowing• Standard deviation of the shadowing– The typical values based on WINNER models of the standard deviation

for lognormal shadowing for lognormal shadowing


• Throughput Enhancement• Throughput Enhancement1.8

2 WiBro 1500

WiBro 1.2

1.4

1.6

WiBro0.6

0.8

1

0 0.5 1 1.50

0.2

0.4

1.8

2 WiBro 1 RS : 600/1500, Trans

0 0.5 1 1.50

1.2

1.4

1.6

WiBroMMR

0.6

0.8

1MMR

0 0.5 1 1.50

0.2

0.4


0 0.5 1 1.5

• Coverage Extension• Coverage Extension1.8

2 WiBro 1500

WiBro 1.2

1.4

1.6

WiBro0.6

0.8

1

0 0.5 1 1.50

0.2

0.4

1.8

2 WiBro 2 RS : 800,1200,1600/2000

0 0.5 1 1.50

WiBroMMR

1.2

1.4

1.6

MMR0.6

0.8

1

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 20

0.2

0.4


• Cooperative relay under SUI 2(LOS) • Cooperative relay under SUI 4(NLOS) • Cooperative relay under SUI 2(LOS) with correlated shadow model

• Cooperative relay under SUI 4(NLOS) with correlated shadow model

100 100 100 Single0deg30deg60deg90deg

100

10-1

BLE

R

90deg120deg150deg180deg

10-1

BLE

R

BLE

R

BLE

R

Single0deg30deg

10-210-2

30deg60deg90deg120deg150deg

0 2 4 6 8 10 12 14 16 18 20Es/No

0 5 10 15 20 25 30

Es/No

180deg


Suk Chan KimPusan National University, Electronic, Electrical and Communication Engineering Electronic, Electrical and Communication Engineering Communication Systems Laboratory,Email: [email protected]

Pusan National University

mailto:[email protected]

Documents

Pusan National University - bungae.kaist.ac.krbungae.kaist.ac.kr/seminar/Material/2007/07_SRF/0602_김석찬.pdf · MIMO-EVDO R.A OFDMA 802.16e EVDO R.0 OFDMA WiBro Wi-Fi OFDM WiMAX