communication technologies survey

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


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


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


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


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


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


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


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


• 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


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


thank you!

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