Wireless Next Generation Network by Prof by po2347

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									Wireless Next Generation
        Network
    Prof. Dr. Norsheila Fisal
          MIMOS UTM CoE
     Universiti Teknologi Malaysia
             Skudai 81310
         Johor Darul Takzim
                  Outline of presentation

• NGN
• Beyond 3G
• Technology convergence
• Introduction to Personal Networks
• Personalising and adapting to the user and
  the user’s situation
• Security issues in Personal Networks
• Key technologies enablers
• Future Wireless Internet
Definition of NGN
The Evolution of NGN
Protocol of NGN(IP+SIP)
Powerful Service
NGN Solution (IP based)
           Future Wireless Communication


2G - driven by voice
3G - driven by video and TV
4G - driven by
  low cost high speed data
  service & application ubiquity (pervasive
  computing)
  personalization & synchronization
  machine-to-machine transmissions (sensors)
Convergence of technologies
Towards Pervasive Computing
                           Beyond 3G?

   B3G is defined as the integration of existing
   systems to interwork with each other and
   with a new interface.
   Pers stands for Personalization




Convergence is really what 4G is all about!!
                           Multiple Convergence Concept
                           Satellites and
                           broadcasting
                 HAPS

                                                        PANs and BANs




                                                                 Personalization,
                        •Global Interactive
                        Global interactive                       context, location,
                        •communication system                    presence, security,
                                                                 and identity
                                  (4G)
                                  •(4G)




                                                              FWA and wired
                                                              communications
Cellular-based
                                            WLANs, such as
systems, such as 2G,
                                            IEEE 802.11a,
3G, and beyond 3G
                                            HIPERLAN 2, and
                                            MMAC
Terminal Convergence



  4G   The flying screen concept
       brings together the familiar
       screens of
         • TV
         • PC (Internet)
         • Mobile Phone
       into a single wireless device
         • anywhere
         • any time
         • any content
                                                                  Networks Convergence
Overview of hetererogeneous networks
                                                                                        4G
                                    Satellites
                                    Satellites                          fully IP-based integrated system
                High Altitude Platforms (HAPS)
                High Altitude Platforms (HAPS)                        of systems and network of networks
                            Cellular Networks

                   Cellular Networks
                      (GSM, UMTS etc)

                              Broadband Fixed
                              Broadband Fixed
                                   Wireless
                                   Wireless
                                                                                       All-IP
                              Access (BFWA)
                              Access (BFWA)

                                   WPANs/
                                   WPANs/

                                     WSNs
                                                          WLANs
                              WSNs                        WLANs                      HAPS               Satellites

                                            20 m 20 m
                                                                                       Wired Backbone
                                                 100 m


                                            100 m
                                                 ~1 km
                                                 ~1 km                                         GPRS
                                                                                      GSM                  BFWA
                                                                                                UMTS
                                                                             WLANs
                                                 Few km
                                                 Few km                                     WPANs
                                                 Few km


                                                  Few km


     Definition of a heterogeneous network: A network
     connecting computers and other devices with
     different operating systems and protocols
                                    Vision of personalized services

Client-to-client/
CC/PP
Peer-to-peer
                    GUP
                    General Advanced
                    User    User Profiles
                    profile & Preferences   Adaptive          Personal
                                            Profiles          Proactive
                                                              Services
                                                   Service                 Context
                                                  Discovery                Learning
Presence      Intelligent
               Location                      Sensor     Bio-Sensors           Smart Dust
Location                    Environment     Networks
                              Sensors
                                                                            Semantic
                                                                            Content
                                                                           Processing
                                                        Service
                                       QoS             Adaptation
                             Content Adaptation
                             Filtering

                Adaptive
   Media       Presentation
Transcoding


 2002               2004             2006              2008         2010      >>
                                                                  PAN, PN and PN Federation

                        Personal Area Network (PAN):
                        Grouping of devices within close
                        vicinity of the user Remote personal devices
           PAN
                   Personal Network
                                                       Home network
                                                                                     Personal Networks (PN):
                                                                                     System approach to Personal Networks
Local foreign devices
                                Interconnecting structure
                                                                                     satisfying users’ needs
                                       S,
                          (Internet, UMT WLAN, Ad Hoc,                Corporate
                                                                       network
        Smart building


                                                                                         PN3
                                                                    Vehicular area
                                                                      network

                        P-PAN                               PAN
                                                                                                               Home network
                                                                                      Home network
                 PrivatePAN (P-PAN)
                            (P-PAN)
                                                            Remote foreign devices

                         Introducing PN Federation:                                            Interconnecting structure
                                                                                                                      Corporate
                                                                                                                       network
                         Grouping of PNs with the objective of
                         achieving a specific common goal, incl.                                                     Vehicular area
                                                                                                                       network
                         temporary ad-hoc groupings, e.g.                                                            PN1
                                                                                             PN2
                         Distributed Work.
                                              PN applications




smart@home               health.care                          nomadic@work
• Office environment     • Doctors, nurses, patients at       • Journalists/mass media
• Smart shopping            hospitals in cooperating          • Students work situation
• Family members and     networks                             • Researchers in cooperating
  friends sharing PN’s   • Ambulance and medical staff on       projects
                           the move
                         • Surveying of recovering patients
                    PN federation applications

                                           PN3



  Interconnecting
  structure
                             PN1




                                   PN2           PN4




Sharing resources            Emergency situation
                                  Personal Network System
The integrated architectural
description
in terms of three abstraction levels:
  – Service
    Service discovery and
    management in P-PAN and PN

 – Network
   Formation and maintenance of
   P-PAN and PN, and Naming
   and
   addressing.

 – Connectivity
   Heterogeneous radio domains
   with layer 2 connectivity
                                 Personal Network System

The Higher Layer Perception
   - Gives the rise to the
   connectivity layer

Data Channel Perception
   - Control and data channels

MAC Control Channel
  Perception
  - Radio Resource
  Management etc.

Physical Perception
   - Layer 1
                           Convergence
         Mapping the PN concept onto the OSI
                   reference model:
 Application      Application     Application          Service
 Presentation
  Session
  Transport       TCP/ UDP        TCP/ UDP
                                                       Network
  Network            IP              IP
                                    LLC
  Data link        Data link
                                    MAC               Connectivity
  Physical         Physical         PHY


OSI Reference      Internet
                                PN Architecture   Abstraction Levels
  Model          Architecture
           Layerless communication
         Less Layers
        Lesser Layers
      Less Lesser Layers



    Layerless Communication
Transparent Layer Communication
               or
      Cross Layer Design
                     Cross Layer Communication

• Avoid Layering Concept
  – Exploit the dependency between protocol layers to
    obtain performance gains
  – Direct communication between protocols at
    nonadjacent layers or sharing variables between layer
     Optimization          Abstraction

• Cross-layer Design for Wireless Mobile Network
  – Create new interfaces between layers, redefine the
    layer boundaries, design protocol at a layer based on
    the details of how another layer is designed, joint tuning
    of parameters across layers, or create complete new
    abstraction
Cross Layer Design Proposals
                    Adapting to the context of the user




              Ctx. Mgmt. Framework                Context Aware
                                                    Services,
Context             Retrieving
                                                   Applications
Sources             Processing                     and network
                    Storing                        components
                    Exchanging
                    Serving




 Discovering, maintain and providing context information is
   a key issue in achieving true context awareness
                               Adapting security levels
Security level is influenced by its context, e.g.




 Device capability and resources, which may be limited
 What implications will it have, if the data is being stolen, tampered with etc.?
  ◦ Type of application used
  ◦ What data is transferred
 What means of communication am I using?
                     To be or not to be trusted

Trust comes in many forms!
  And plays an important role in (federated) PN’s




                                  Do we trust this guy?
                        Ensuring privacy

• Big brother is watching???
  – Or is it my neighbour?


• How do we achieve system and service
  level adaptation while ensuring privacy?
                          Evolution of Mobile Technology
                 New                     Key Solutions
              Requirements                     Flexible
                                            spectrum usage
                Increased Capacity and
                      Low latency




                                                                 Adaptive system
                                               Advanced
Traditional




                                                TX & RX
 Wireless




                    Increased high             schemes
                  data rate coverage         and Advanced
                                               Antennas

                  Low deployment
                cost (many scenarios)       Ad-hoc solutions
                                           and optimized radio
                                               interfaces
                   Personalization

                                             Mobile terminal
                                           convergence; open
                                           service platforms;
                                           Security solutions
                Enablers for 4G

Efficient Spectrum Usage & Sharing
(Cognitive Radio)
OFDM and MIMO (SDR/SR)
IP Mobility (IPv6, SIP)
Fixed Mobile Convergence (IMS)
Chaching Technologies (Multihop Ad Hoc)
Coverage for multiple technologies
(Convergence) :
◦ Parent (Cellular 3G, WiMax)
◦ Discontinuous pico/femto cell
                   Future Internet

The Future Internet, which is anticipated to provide
futuristic functionalities beyond the limitation of the
current network. We see a growing demand for
following features:
  Scalability, security, mobility, Quality of Service
  (QoS), robustness, heterogeneity, economic
  incentives, etc.
Also, the Future Internet will be more deeply
integrated and composed with new emerging
technologies and services
  E.g., Intermittent network, DTN (Delay-Tolerant
  Network), vehicular/airborne network, programmable
  and cognitive networks
FUTURE WIRELESS NETWORK
Internet vs Future internet
                 Network Virtualization

De-ossifying the current Internet
 Multiple virtual networks co-exist on top of a shared
 substrate.
 Different virtual networks provide alternate end-to-end
 packet delivery systems and may use different
 protocols and packet formats.
Easily programmable
 Can experiment on any level (physical to apps)
Internet vs DTN
                  New Design Goal

•   Scalability
•   Security
•   Mobility
•   Heterogeneity
•   Quality of Service
•   Customizability
•   Robustness
•   Economics
                          Network Architecture

Data Oriented Network Architecture
– Data dissemination rather than p2p conversation
Autonomic Communication
– Manageability
Bio-Inspired Network
– Use biological concept for network,
     • Service generation with natural selection/ evolution
     • Security with immune system
Opportunistic Communication
– Send packet according to the link condition
– Store & forward (eg. DTN)
I3
– Mobility
– Internet indirection infrastructure
                       Diverse E2E Communication

Original E2E
   Concerned with end-to-end services and protocols
   implemented in hosts, such as transport protocols and
   implementation architecture for high performance.
    • e.g., presentation layer design, application-layer framing, high
      performance host interfaces, and efficient protocol implementation
      techniques.
EME (End-Middle-End)
   While still end-to-end in many ways, connection establishment
   in the Internet today involves state and functionality in the
   middle in the form of NATs, firewalls, proxies and so on.
    The current Internet architecture does not reflect this resulting
   in a mismatch between design and practice.
   There are some signaling based solutions to connection
   establishment
               Current Research


Cognitive Network
◦ Cognitive Mesh Networking (WiFi, WiMax)
◦ Autonomous Network (WSN)
Cognitive Radio (UWB, WiMax)
◦   Multiband OFDM MIMO UWB
◦   Cooperative Sensing
◦   Distributed MAC
◦   Adaptive/Joint Coding
◦   Software Defined Radio (SDR)/Software Radio
    (SR)
                           Current research

Wireless Sensor Network
  WBSN
  Multimedia WSN
  WSN Satellite Networking
Internet Multimedia System (IMS)
  Location Tracking
  SIP and soft-switching
IPv6 WSN (6loWPAN)
  Routing & Mobility
Intelligent Transport System (ITS)
THANK YOU

								
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