Advances in Wireless Networks Towards a Ubiquitous World
Transcript of Advances in Wireless Networks Towards a Ubiquitous World
Feb.Feb. 8,8, 20020066
ProfProf. Yasushi Yamao. Yasushi Yamao
UECUEC--AWCCAWCC
Advances in Wireless NetworksAdvances in Wireless NetworksTTowards a Ubiquitous Worldowards a Ubiquitous World
IEICE Lecture Meeting in Bandung
ContentsContents
Current market trends
Evolution scenario from 3G to 4G
“Mobile Ubiquitous”A synergistic combination of mobile communication systems and a ubiquitous environment.
1
Mobile Phone Penetration RateMobile Phone Penetration Rate
2Penetration rate (%)
70.6% Dec. 2005
0 20 40 60 80 100
China
Japan
France
Germany
U. K.
Sweden
Finland
Italy
U. S. A.
Dec. 2003Dec. 2001
Mobile Internet Migration in JapanMobile Internet Migration in Japan
3
86.8 %
(Millions)
Mobile Internetex. -mode
Total number of mobile subscribers
Num
ber o
f sub
scrib
ers
0
10
20
30
40
50
60
70
80
90
100
1999 2000 2001 2002 2003 2004 2005
Mobile Internet Migration in the WorldMobile Internet Migration in the World
4
From "2005 White Paper: Information and Communications in Japan"by the Japanese government.
0 20 40 60 80 100Japan
Korea
U.S.A.
Austria
Finland
Holland
Hong Kong
Australia
France
U. K.
Spain
China
Denmark
Penetration rate (%)
3G Deployment in Japan3G Deployment in Japan
Nationwide deployment (Population coverage of 99%) was achieved at the end of March 2004.
Are
a co
vera
ge b
y D
oCoM
o (%
)
5
0102030405060708090
100
May/2001 March/2002 March/2003 March/2004
Start of Monitor Service
Increase of 3G Increase of 3G SubscribersSubscribers in Japanin Japan
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Num
ber o
f sub
scrib
ers
(Millions)
0
10
20
30
40
50
60
70
80
90
100
1 3 6 9 12 3 6 9 12 3 6 9 12
2003 2004 2005 (Year)
3G47.7 %(End of Dec.)
3G
2G
Migrati
on
Advances in Mobile CommunicationAdvances in Mobile Communication
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1G1GAnalog
VoiceVoice
Fast DataFast Data&& MultimediaMultimedia
IMT-2000
Slow DataSlow Data
Digital
~ 64kbps384kbps~14Mbps
1980's 1990's 2000's 2010's
Global standard
NTT ('79)AMPS ('83)TACS ('85)etc.
PDC ('93)GSM ('92)IS95 ('95)etc.
2G2G 3G3G 4G
100Mbps~1Gbps
BroadbandBroadband&& UbiquitousUbiquitous
WW--CDMACDMACDMA2000CDMA2000TDTD--CDMACDMA
Enhancement of Data SpeedEnhancement of Data Speed
8
Dat
a sp
eed
(bps
)
92 99 00 01
10M
1M
100k
10k
2G & 2.5GW-CDMA
約14M
2-3M
Peak
3G & 3.5GAverage
MAX. 2M
2ndG band (800MHz PDC)
3rdG band (2GHz)
1k93 94 95 96 97 98 02 03 04 05
384k
2.4k
PDC
9.6k
PDC
28.8k
PDCPacket
32k
PHS
64k
PHS
2ndG band (1.9GHz PHS)
HSDPA
Year06
High-SpeedDown linkPacket Access
Adaptive modulation and encoding
Time
Dat
a sp
eed
14Mbps
User BUser A
0111
1011
1001 000
1 0011
1010 100
00000 001
0
1110 110
0 0100
0110
1111 110
10101011
1
1011
1001 000
1 0011
1010 100
00000 001
0
1110 110
0 0100
0110
1111 110
10101
User A stateUser B state
16QAMR=0.89
QPSKR=0.5
16QAMR=0,84
Packet speed changes from 384 kbps to14 Mbps for each user.
14 Mbps2 Mbps
384 kbps
TimeB
it R
ate
Tx P
ower
14 Mbps
384 kbpsAAA
B BC CBB D
HADPAHADPA (High(High--Speed Downlink Packet Access)Speed Downlink Packet Access)
Goal;
Technologies;
• Low bit-cost by more efficient use of down link radio resource.• Increase peak and average user throughput.
• Adaptive modulation and encoding,Hybrid-ARQ
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HSDPA Terminals (Prototype)HSDPA Terminals (Prototype)
10Courtesy of NTT DoCoMo
DoCoMo developed prototype terminals with maximum down link speed of 3.6 Mbps.
New Broadband Packet Wireless Access Technology willremarkably enhance system performance.
IMT-2000
1 10 1000.1
Mob
ility
Nationwide
Indoor/ FWA
Premises
Citywide
Data rate (Mbit/s)
Millimeter-waveLAN
Nomadic WirelessAccess ((W-LAN))
2G3G
• High-speed• High-capacity• Short delay• Low bit cost• IP-based?
4G3.5G
4G Enhancement in Transmission 4G Enhancement in Transmission
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1000
Two Streams with Overlapping GoalTwo Streams with Overlapping GoalM
obili
ty
Global
Nationwide
Indoor/ FWA
Premises
Citywide
Information Speed (Mbit/s)
Cellar and Wireless LAN technologies will target a similar field.
122002 c NTT DoCoMo
10 1000.1
NomadicWireless Access
2G3G 3.5G
CellularCellular
Millimeter-waveLANWLANWLAN
4GWiMAX
100Mb/s
100M-1Gb/s
1
1Gbps Wireless Access1Gbps Wireless Access
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MIMO (Multiple-Input Multiple-Output)
Spectrum efficiency target: 10bit/Hz Demultiplexing method is the key.
1. IP Convergence in Layer 3 may enable Seamless Serviceamong heterogeneous NWs.
- Unified Mobility Management (Both macro- and micro-mobility)is key technology.
- Security Measures will be more important considering connection to private NWs.
FixedpublicNW
Mobilepublic NW
OfficeLAN
HomeLAN
AP
PHYlayer
Midlayer
Mobility
FixedpublicNW
MobilepublicNW
OfficeprivateLAN
HomeLAN
IP layer
CommonAP1
CommonAP2
CommonAP3
IP Network IP Network TechnologTechnology y ImpactImpact
142002 c NTT DoCoMo
4G Evolution Scenario4G Evolution Scenario
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PDCPDC-P
ATM -> IP3G RAN -> IP RAN
3G, 3.5G, 4GWLAN, Non-cellular
2G 3G 4G
Services
Systems
i-modeFOMA
Mobile UbiquitousMobile multimediaMobile Internet
E-mailWeb Access Visual mail
TV conferenceVideo phone Object-related application
Application based on real world info.
UbiquitousCollaboration
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MultiSphere Model (Ref. WWRF report)
Level : PAN (Personal Area Network),Wearable Devices Terminals
Level : Immediate Environment (Ubiquitous)
Level : Instant Partners(Ad hoc Networking)
Level : Radio Accesses (Global)3G, 4G Mobile Network
Level : CyberWorld (Internet)
(Figure:WWRF 2001)
Vision of Future Wireless CommunicationVision of Future Wireless Communication
Wireless technologies connect everything !
Ubiquitous: NonUbiquitous: Non--Human CommunicationsHuman Communications
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Human Human toto HumanHumanEE--mailmailMM mailMM mail
VoiceVoice
ii--modemodeNet browsingNet browsing
ITSITSGPSGPS
TeleTele--meteringmeteringRemote Remote operationoperation
MobileMobilenetworknetwork
PDC/PDCPDC/PDC--P/PHS/P/PHS/WW--CDMACDMA
Mobile multimediaMobile multimedia
MMDMMD
Human Human toto MachineMachine Machine Machine toto MachineMachine1
2 34
5 67
8 9* 0 # TagTag
RFRF--IDID
PAN/HANPAN/HAN
Ad-hoc NW2
Mobile Ubiquitous ModelMobile Ubiquitous Model
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Mobile terminal can "network" with various ubiquitous elements.
(Devices, networks)
Mobile terminalas Ubiquitousgateway
4G Broadbandradio accessas Mobile highway
Global mobile network/Internet
Heterogynousubiquitous elements
Up to 100 Mbps
Ad-hoc NW1
Tag/RF-ID
Devices for remoteoperation
Personal / home areaNW & devices
Human com. I/F
Ubi
quito
us
gate
way
I/F
Internet service4G
acc
ess
I/FU1U2U3U4U5
AP
AP
AP
AP
Other mobile terminals
Ubiquitous Element (1) Ubiquitous Element (1) --PAN/HANPAN/HAN--
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Personal Area Network (PAN) Home (or Room) Area Network (HAN)
Household appliance
PC
Electronic moneyAudio/ visual devices
Clothing with sensor
Logically reconfigurable terminal – enhancing its function with surrounding devices available at that time.
Ubiquitous Element Ubiquitous Element (2) (2)
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Size: 37 x 35.7 x 5 mmWeight: 13 g
* DoCoMo Packet service by PDC-P system
Vending machines
Video monitors
Delivery vehicles
--Device for RemoteDevice for RemoteOperationOperation--
Dopa* ubiquitous module can be installed in any machineor product and adds a packet communication function.
Ubiquitous Element (3) Ubiquitous Element (3) --BarcodeBarcode--
New mobile phones can capture and decode two-dimensional (2D) barcodes. If necessary, they access the URL indicated in the code and obtain detailed information.
Dr. Yasushi Yamao
ex. Business card,Goods,
2D BarcodeF. name: Yasushi L. name: YamaoSex: MaleTitle: PhDAffiliation: DoCoMoE-mail: XXX@XXXHobby: ?
Personal Data
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Ubiquitous Element (4) Ubiquitous Element (4) --Sensor NWSensor NW--
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Sensor networks (Weather, earthquake, environmental change, etc.)
Sensor NW
AP
AP
AP
AP
Global mobile network/Internet
1 2 34 5 67 8 9* 0 #
1 2 34 5 67 8 9* 0 #
1 2 34 5 67 8 9* 0 #
SummarySummary
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• Survey current market trends and present an evolution scenario from 3G to 4G
• Proposed “Mobile Ubiquitous” and described its value.
Thank you for your attention!