communication technologies survey
TRANSCRIPT
TECHNOLOGIES & INNOVATIONS SURVEY VNTELECOM 2011 1 | NOV. 2011
Te c h n o l o g i e s - I n n o v a t i o n s - R e s e a r c h 2 0 1 1
VnTe lecom Seminar | Par i s | 26 Nov. 2011
Organ izat ion Board | Contact : Van M inh Nguyen
Communication Technologies Survey
TECHNOLOGIES & INNOVATIONS SURVEY VNTELECOM 2011 2 | NOV. 2011
LTE-
Advanced
Small cell
networks
Green
Networks
DIDO (Distributed Input,
Distributed Output)
Distributed
Computing
eHealth
Nano
Sensor
Network
Internet of
Things
Semantic
Web
(Web3.0)
LiFi -
Wireless ICT
Technologies
Services
Innovations
Research
TECHNOLOGIES & INNOVATIONS SURVEY VNTELECOM 2011 3 | NOV. 2011
LTE-Advanced in 3GPP Standards Evolution
WCDMA (Release 99)
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
1.28Mcps TDD (Release 4)
HSDPA (Release 5)
HSUPA & MBMS (Release 6)
HSPA+ (Release 7)
Long Term Evolution (Release 8)
LTE Enhancement (R9)
LTE-Advanced (R10)
R11
ITU-R M.1457
IMT-2000
Recommendation
ITU-R M.[IMT.RSPEC]
IMT-Advanced Recommendation
3G
3.9G
Approved at ITU-R WP5D
meeting in Oct. 2010 as a
IMT-Advanced technology
T. Nakamura (3GPP TSG-RAN Chairman), “3GPP Radio Access Networks LTE-Advanced Status”, 3GPP LTE Asia, 6th Sept. 2011
TECHNOLOGIES & INNOVATIONS SURVEY VNTELECOM 2011 4 | NOV. 2011
LTE-Advanced Key Features
Contains all features of LTE Rel-8&9 and
additional features for further evolution
Backwards compatible with LTE Release 8&9
Smooth and flexible system migration from LTE
Integration Targets
Peak Data Rates: 1 Gbps for DL, 500 Mbps for UL
Peak Spectral Efficiency: 30 bps/Hz for DL, 15
bps/Hz for UL
Cell-edge User Throughput [bps/Hz/cell/user]:
0.12 for DL 4x4 MIMO, and 0.07 for UL 2x4 MIMO
Control Plane Latency: <10 ms for an active UE to
get synchronized, and < 50 ms for an idle UE to
enter active mode
Mobility and Coverage: identical to LTE with
additional requirements for indoor deployments
Spectrum: high flexibility & spectrum aggregation
with transmission bandwidths up to 100 MHz
Performance Targets (3GPP TR 36.913)
Aggregate several component carriers to extend the
bandwidth up to 100 MHz
High data rates, leverage of fragmented spectrums
Wider Bandwidth (Carrier Aggregation)
Extension to up to 8-layer Tx in DL, & 4-layer Tx in UL
Enhancements of multi-user MIMO
Improvement of peak data rates and capacity
Extended MIMO Transmission
Coordinates the transmission and reception between
one UE and several eNBs
Improves cell-edge throughput, leverages interference
Coordinated Multiple Point Tx & Rx (CoMP)
Relaying node is connected to NW through a wireless
backhaul, and appears as a Rel-8 eNB to a Rel-8 UE
Improve coverage & facilitate service area extension
Relay
TECHNOLOGIES & INNOVATIONS SURVEY VNTELECOM 2011 5 | NOV. 2011
Carrier Aggregation
• Transceiver design, high computational
complexity due to increased FFT
• Efficient UL power control for the
frequency-dependent path loss
• Dynamic spectrum aggregation, cross
carrier sched., data stream aggregation
Extended MIMO Transmission
• Accurate channel estimation with
reduced overheads (> 14% in LTE),
• Feedbacks & Reference Signal design
• Codebook design for closed-loop
operation, Physical size limitation @ UE
CoMP
• Efficient multi-cell channel estimation
• Coordination between ENBs: Coordinated
scheduling/beamforming for control and data
Relay
• Routing, Backhauling of the relay node
• Resource sharing: eNB <-> Relay, Relay <-> UE
• Transparent to the UE design
Interference cancellation
• Interference coordination at the network side
(stochastic control, graph coloring)
• Interference cancellation at the UE (successive
interference cancellation in the equalizer)
Self-organizing network
• Mobility optimization, Mobility load balancing
• Coverage optim, Minimization of driver-tests
• Common channel parameters optimization
Research
Challenges
TECHNOLOGIES & INNOVATIONS SURVEY VNTELECOM 2011 6 | NOV. 2011
Nanosensor
Networks
• Nano-machines: “a device consisting of nano-scale components, able to perform
a specific task at nano-level, e.g. communicating, computing, sensing.”
• Networked nano-machines are able to doing more complex tasks (in body SN)
Conception
• Biomedical applications: health monitoring, immune system supports,
drug delivery systems, genetic engineering
• Consumer good applications, Military applications, Self-organizing & self-
control systems, Environmental applications
Applications
Many topics: new network protocols, physical channel model, simulation frameworks
Prof. Ian F. Akyildiz, website of the Nanonetworking of Broadband Wireless Networking Labs http://www.ece.gatech.edu/research/labs/bwn/nanos/publications.html
Enabling
technologies
• Graphene-based: wireless graphene-enabled
nano-antennas in terahertz band
• Graphene: 2-dimensional lattice of carbon atoms,
(Nobel prize to A. K. Geim and K. S. Novoselov)
• Molecular-based communication: transmission &
reception of information encoded in molecules
Reference
Research
TECHNOLOGIES & INNOVATIONS SURVEY VNTELECOM 2011 7 | NOV. 2011
Distrib
ute
d C
om
pu
tin
g
• Concept: end-users access to software applications
hosted on remote servers without need of local installation
• Example: Google App Engine, Amazon Web Services,
Saleforce.com for Customer Relation Management
solutions, Microsoft-hosted Azure Services Platform
providing operation systems
• Features: Software as a Service, Ubiquitous access
Cloud
computing
• Concept: a “virtual super computer” aggregating geographically
distributed resources to perform a common task
• Example: 80,000 CPU cores are shared within EGEE
(Enabling Grids for E-sciencE) [ITU-T Tech. Watch Rep., Mar. 09]
• Features: Platform as a Service, Virtualization
Grid
computing
• Concept: organizations subscribe to an external computing services provider & pay
only for the services used. Savi costs by avoiding high idle time of in-house servers
• Example: Amazon provides customized virtual computers according to users’ needs
• Features: Service-oriented Architecture, Cost-effectiveness
Utility
computing
• Tasks: middleware, resource interconnection, portability, interoperability, network &
memory management.
• Bodies: ITU-T, Open Grid Forum, Distributed Management Task Force, Optical
Internetworking Forum, etc.
Standardiza
tion
TECHNOLOGIES & INNOVATIONS SURVEY VNTELECOM 2011 8 | NOV. 2011
LiFi - Wireless Data From Every Light Bulb
Electromagnetic Spectrum
Radio Infrared Visible X-rays Ultraviolet Gamma
Frequency
x 10000
How does it work?
• If the LED is on -> transmit 1, if it's off ->
transmit 0
• Encode data in the light by varying the rate at
which the LEDs flicker on and off to give
different strings of 1s and 0s
• Parallel data transmission using arrays of LEDs
or using mixtures of red, green and blue
LEDs to alter the light's frequency
14 billion light bulbs worldwide
Perspectives
• Performance: reached data rates of over
800Mbps (Heinrich Hertz Institute)
• Applications:
• Replace Wi-Fi for data transmission
• Use in WPAN
• VL-NFC, RFID
TECHNOLOGIES & INNOVATIONS SURVEY VNTELECOM 2011 9 | NOV. 2011
• Shannon’s law (hard limit) “the data capacity, in bits per second, is a function of the
bandwidth, the signal strength, and the noise in the channel”
DIDO –A way to break Shannon’s law
Claude Shannon
Steve Perlman
• Claim to break the Shannon’s law by DIDO (Distributed Input , Distributed Output)
• This new technology can transmit data at speeds that are about 10 times the limits
determined by Shannon’s Law, (could hit x 100 or eventually x 1,000 times )
Classic approach: use the same spectrum New approach: use the full data rate of shared
spectrum simultaneously
TECHNOLOGIES & INNOVATIONS SURVEY VNTELECOM 2011 10 | NOV. 2011
E-Health
“e-health is an emerging field in the intersection of medical informatics, public health & business, referring
to health services & information delivered or enhanced through the Internet and related technologies. In a
broader sense, the term characterizes not only a technical development, but also a state-of-mind, a way of
thinking, an attitude, and a commitment for networked, global thinking, to improve health care locally,
regionally, & worldwide by using information and communication technologies.”
(What is e-health?, Journal of Medical Internet Research, doi:10.2196/jmir.3.2.e20)
“e-health is an emerging field in the intersection of medical informatics, public health & business, referring to
health services & information delivered or enhanced through the Internet and related technologies. In a
broader sense, the term characterizes not only a technical development, but also a state-of-mind, a way of
thinking, an attitude, and a commitment for networked, global thinking, to improve health care locally,
regionally, & worldwide by using information and communication technologies.”
(What is e-health?, Journal of Medical Internet Research, doi:10.2196/jmir.3.2.e20)
Google (eHealth)
About 17,700,000 results
(0.14 seconds)
Communication bandwidth
Realtime multimedia applications
e-Health Tele-medicine
Products: e.g. instruments ensuring the constant health monitoring of patients
Systems: such as computer-assisted surgery systems
Services: e.g. operating surgical & intensive care units ensuring continuous monitoring, computer-
assisted prescription services, & information services including individual electronic health records.
Added-values
TECHNOLOGIES & INNOVATIONS SURVEY VNTELECOM 2011 11 | NOV. 2011
thank you!
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