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Future Internet in Korea. Yanghee Choi Seoul National University, Future Internet Forum. Internet in Korea. Wireline subscribers : 23.3 million (Oct. 2007) Cellular : 43 million Internet Users : 34.4 M (75.5%) IPv4 addresses : 58.8 M High speed Internet subscribers : 14.7 M (Nov.2007)

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Future internet in korea

Future Internet in Korea

Yanghee Choi

Seoul National University,

Future Internet Forum


Internet in korea

Internet in Korea

  • Wireline subscribers : 23.3 million (Oct. 2007)

  • Cellular : 43 million

  • Internet Users : 34.4 M (75.5%)

  • IPv4 addresses : 58.8 M

  • High speed Internet subscribers : 14.7 M(Nov.2007)

    • xDSL 31.8%

    • cable modem 34.9%

    • apartment LAN 28%

    • FTTH 5.3%

    • 90.8% of all households

2008 Yanghee Choi


R d projects

R&D projects

  • Fundamental Technologies for Future Internet

    • 2007 – 2009 (3 years)

    • 1.2 BWon/year

  • Future Internet related Innovative Research

    • From 2008

    • 3-5 year projects for universities (0.2-0.5 BWon/year)

      • Robust Mobility Management

      • Network Monitoring and Measurement at micro-level

      • Personalized Service Architecture

      • Security for Survivable Networks

  • IT Research Center on Future Internet (2008-2011)

2008 Yanghee Choi


Fundamental technologies for future internet project details

Fundamental Technologies for Future InternetProject details

  • R&D Planning (through Future Internet Forum)

    • Identify long-term R&D topics

    • Predict the future technologies

    • Promote collaborations

  • Work on selected research topics (universities)

    • Architecture

    • Wireless

    • Services

  • Participation to Standard Activities

    • IETF, ITU, IEEE, forum etc.

2008 Yanghee Choi


Research topics 2008

Research Topics - 2008

2008 Yanghee Choi


Research items

Research items

  • Testbeds

    • Virtualized WirelessMesh (KAIST)

    • Cognitive Radio (SNU)

    • Virtualized Femtocell (SNU)

    • Context-aware (ICU)

    • Mobility (KU)

    • Measurement (KAIST)

  • Pioneering concepts

    • Content-driven (SNU)

    • Cross-layer (POSTECH)

    • Micro-management (KAIST)

    • Hard security (SNU)

    • Disruption Tolerant Network (SNU)

2008 Yanghee Choi


Architecture 1 5

Architecture (1/5)

  • Wireless Testbed (Seoul National University)

  • Goal

    • Develop a general testbed for cellular networks

  • Cell-lab

    • Uses WCDMA as access technology

    • Virtualization of base station by base station head

    • Users can access remotely to the mobile station and base station through Internet


Architecture 2 5

Architecture (2/5)

  • Transport Architecture in Optical Core Network (Seoul National University)

  • Goal

    • Design a flow-based transport architecture in optical network

  • Hierarchical TDM & WDM Optical Transport Architecture

    • Dispersing a load of core edge (ingress/egress) node to metro nodes

    • Switching at Optical layer is expanded into MAN


Architecture 3 5

Key Distribution Center

(KDC)

Broadcasting Message :

Architecture (3/5)

  • Security Architecture (Seoul National University)

  • Goal

    • Develop an efficient multicast key management scheme

  • Balance the logical key hierarchy to reduce network overhead for rekeying

    • Analyze average number of rekeying message considering user mobility


Architecture 4 5

Architecture (4/5)

  • DTN Interworking Architecture (Seoul National University)

  • Goal

    • Develop a programmable emergency network architecture

  • Propose a DTN-based emergency network framework to monitor disaster areas


Architecture 5 5

Architecture (5/5)

  • Measurement System (KAIST)

  • Goal

    • Design and implementation of a measurement system for Future Internet

  • Improve Delay Estimation with Path Stitching

a

d

?

1. Given user query:

Path and end-to-end delay

between a and d

2. AS path inference:

3. Path segments:

4. Path stitching:

5. Path trimming:

Query processing

A B C D

c1 c2

a1 a2 a3 a4

b1 b2 b3 b4

d1 d2 d3

a2 a3 a4

d1 d2


Wireless 1 4

Wireless (1/4)

  • Cognitive Radio System (Seoul National University)

  • Goal

    • Propose a new PHY/MAC for Cognitive Radio System

  • Analyze centralized/distributed cognitive radio MAC

  • Analyze spectrum sharing based on overlay/underlay access

Overlay Spectrum Access

Distributed CR MAC


Wireless 2 4

Ab0

Ab0

Ba18

Ba18

Ba6

Ba6

Aa20

Aa20

Aa5

Aa5

Aa13

Aa13

Wireless (2/4)

  • Indirection Multicast System (Seoul National University)

  • Goal

    • Propose an indirection-based multicast in Future Internet

  • Propose a hierarchical indirection multicast (HIM)

    • Reflect physical network hierarchy on the logical identifier

source

Aggregation


Wireless 3 4

Application

A

A

Application

Transport

T

T

App. Adaptor

Common Code Base

Common Code Base

Network

N

N

Protocol Stack

Logical Link

L

L

User MAC

MAC

M

M

Scheduler

Physical

P

P

H/W Adaptor

Propagation

OS (Linux)

Scheduler

D/D

OS (Linux)

MAC

GloMoSim Simulator

Testbed Node

Wireless (3/4)

  • Wireless Mesh Network (KAIST)

  • Goal

    • Develop multi-hop wireless access system architecture and protocols for Future Internet Testbed

  • Develop a code set that can be shared both simulator and testbed node


Wireless 4 4

Wireless (4/4)

  • QoS Support in Wireless Access (KAIST)

  • Goal

    • Develop a resource sharing scheme to guarantee QoS in multi-hop wireless network

  • Propose a fair rate-allocation scheme

  • Propose an assured forwarding service in multi-hop network

Simple Mesh Topology

Measure Fairness of TCP traffic


Services 1 3

DACON user

DACON host

DACON portal

DACON border portal

Peer Link

Internal Link

External Link

Services (1/3)

  • Content-Oriented Network (Seoul National University)

  • Goal

    • Develop a content-oriented network architecture and services

  • Propose an user-assisted content-oriented overlay networking architecture

    • Make user-deployable devices (e.g. AP, home BS, etc) form a novel network for a content distribution service


Services 2 3

Services (2/3)

  • Interaction Protocol for context-aware Services (ICU)

  • Goal

    • Develop context-aware interaction protocol in mobile ad hoc network

  • Propose an immediate context-aware network architecture

    • Common discovery layer, Profile matching

User Profile

Potential Group

Profile

Application

User Profile

Potential Group

Profile

User Similarity

Application

User Similarity

Weighted Sum

Potential Group

Similarity


Services 3 3

Services (3/3)

  • Object/Service Discovery (ICU)

  • Goal

    • Develop a semantic resource discovery in MANET/SensorNet environment

  • Propose a Multiple Distributed Indices (MDI) to enhance locality preserving

    • Supporting high-dimensional Range Query in MANET/SensorNet

Query Size vs. Average Cost

Distributed Indexing for Multidimensional data


Future internet forum

Established in 2006 to promote R&D collaborations in Future networking

Building research communities

http://fif.kr

Workshops, seminars, publications

Research Council

General guidelines, technical documents

Working groups

Architecture

Wireless

Service

Testbed

Policy

Future Internet Forum

2008 Yanghee Choi


Fi future internet events

FI (Future Internet) Events

  • International Conferences

    • “Internet of the Future”, July 20-22, 2006, Seoul, Korea

    • International Future Internet Workshop 2007, July 9-10, 2007, Seoul National University

    • International Conference on Future Internet 2008, June 18-20, Seoul, Korea

  • Future Internet Camp

    • Aug. 20-22, 2007, Jeju Island

    • Feb. 18-22, Seoul National University (with AsiaFI school)

    • Aug. 25-28, Jeju Island (with AsiaFI school)

2008 Yanghee Choi


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