Politecnico di Milano
     Advanced Network Technologies Laboratory

Evoluzione delle Reti Mesh con
Collegamenti Eterogene...
Politecnico di Milano
     Advanced Network Technologies Laboratory

The Evolution toward
heterogeneous high speed
mesh ne...
Ad hoc Networks: myth
        and reality
        Mobile Ad hoc Network (MANET)



                                       ...
“Sons” of ad hoc networks

                 AD HOC


Wireless Sensor Vehicular Area                  Wireless Mesh
Network...
The Evolution Path
        Toward WMNs
    The problem:
    In many                                          Eth
    appli...
The Evolution Path
        Toward WMNs (contd)
                      First possible solution:
                         Wir...
The Evolution Path
        Toward WMNs (contd)
 Wireless networks of
    point-to-point links
    Use of point-to-point
  ...
The “true” Wireless Mesh
        Networks
  Mesh routers (MRs)                                      Internet
             ...
Advantages of WMNs
    Not only wireless access but also wireless
    infrastructure
    The only viable solution in most ...
Applications
      Large range of application scenarios
      where creating a wired infrastructure
      is not possible ...
Evolution of WMN beyond
        WiFi MESH

  The concept of mesh
  networking is not
  dependent on the
  communication te...
From traditional IP to mesh
        networking

     The traditional IP technology is
     today the only one widely adopt...
What is the Future
        Internet?




                                                Courtesy of Dr. Arian Zwegers
   ...
All wireless technologies are
        going ‘mesh’
      Pervasive broadband applications
      require high capacity wire...
Mesh networking as a new
        paradigm for access networks

        Are we really sure that single technology
        m...
Mesh networking as a new
        paradigm for access networks
     Tradition IP networking is not really an option
     he...
New generation mesh devices
        New mesh devices will be able to be
        equipped with a large number of different
...
Experimental Projects in
        the Academic Labs
     MIT Roofnet
          First experimental project
          Low cos...
MobiMESH Project

        Started by ANTLab, Politecnico
        di Milano in 2004
        Initial goal:
            Creat...
MobiMESH Project
      MobiMESH is now a
      complete and innovative
      Wireless Mesh platform
      We continue to w...
MobiMESH
  Today MobiMESH is also a                                  MESH
  spin-off company of                           ...
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Evoluzione delle Reti Mesh con Collegamenti Eterogenei ad Alta Velocità

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Evoluzione delle Reti Mesh con Collegamenti Eterogenei ad Alta Velocità

  1. 1. Politecnico di Milano Advanced Network Technologies Laboratory Evoluzione delle Reti Mesh con Collegamenti Eterogenei ad Alta Velocità Antonio Capone Roma, 2 Dicembre 2008
  2. 2. Politecnico di Milano Advanced Network Technologies Laboratory The Evolution toward heterogeneous high speed mesh networking Antonio Capone Roma, 2 Dicembre 2008
  3. 3. Ad hoc Networks: myth and reality Mobile Ad hoc Network (MANET) relay source destination relay Huge research effort (~330.000 scientific papers published – source Google Scholar) Only few real applications Antonio Capone http://antlab.elet.polimi.it 3
  4. 4. “Sons” of ad hoc networks AD HOC Wireless Sensor Vehicular Area Wireless Mesh Networks (WSN) Networks Networks (WMN) (VANET) Antonio Capone http://antlab.elet.polimi.it 4
  5. 5. The Evolution Path Toward WMNs The problem: In many Eth applications er n creating a et wired infrastructure for wireless access networks, like traditional WLAN WiFi, is not possible or Solution: too expensive Replacing wired infrastructure with wireless links Antonio Capone http://antlab.elet.polimi.it 5
  6. 6. The Evolution Path Toward WMNs (contd) First possible solution: Wireless Distribution System Manual configuration of wireless links Can be used only with small size networks Antonio Capone http://antlab.elet.polimi.it 6
  7. 7. The Evolution Path Toward WMNs (contd) Wireless networks of point-to-point links Use of point-to-point links based on traditional technologies (e.g. SDH) or low cost ones (WiFi, Hiperlan) Solution adopted by several WISPs and Weaknesses: system integrators Very low flexibility Two possible Complex configuration architectures: like with WAN Non-meshed topologies Meshed topologies with No support for nomadic IP based routing (e.g. users OSPF) Antonio Capone http://antlab.elet.polimi.it 7
  8. 8. The “true” Wireless Mesh Networks Mesh routers (MRs) Internet Internet manage routing mesh automatically based gateway on ad hoc network technologies Devices are flexible and self-configuring mesh router All or a subset of MRs act as access points (Wi-Fi hot spot) mesh client Some devices are the Access Link gateways to the Backhaul Internet Gateway Link Antonio Capone http://antlab.elet.polimi.it 8
  9. 9. Advantages of WMNs Not only wireless access but also wireless infrastructure The only viable solution in most of the application scenarios Probably the best in all cases under the cost/flexibility perspective WMNs deployment Ease up time-to- deployment Reduced CAPEX/OPEX Antonio Capone http://antlab.elet.polimi.it 9
  10. 10. Applications Large range of application scenarios where creating a wired infrastructure is not possible or cost effective Municipal wireless networks Temporary networks Industrial networks Retrofits Surveillance Environmental monitoring Traffic control Antonio Capone http://antlab.elet.polimi.it 10
  11. 11. Evolution of WMN beyond WiFi MESH The concept of mesh networking is not dependent on the communication technology adopted It is just based on the idea of creating a flexible and easy to use network that is able to self-configure and dynamically adapt to operation conditions Antonio Capone http://antlab.elet.polimi.it 11
  12. 12. From traditional IP to mesh networking The traditional IP technology is today the only one widely adopted in all portions of the network (core and access) Also IP is independent from the GENI communication technology But the basic networking paradigm has been unchanged for 30 years A huge research effort is ongoing to Internet of design the new networking the Future technologies for the Internet of the future Antonio Capone http://antlab.elet.polimi.it 12
  13. 13. What is the Future Internet? Courtesy of Dr. Arian Zwegers European Commission Antonio Capone http://antlab.elet.polimi.it 13
  14. 14. All wireless technologies are going ‘mesh’ Pervasive broadband applications require high capacity wireless networks Small cells (100-200 m) with high transmission rate (100Mb/s-1Gb/s) The only viable option for creating this type of access networks is mesh WiMax mesh mode has been recently standardized (802.16j) LTE relay mode is being considered by standardization committees Antonio Capone http://antlab.elet.polimi.it 14
  15. 15. Mesh networking as a new paradigm for access networks Are we really sure that single technology mesh networks are the solution? Also in mesh networks we have an access part and a backbone The best technology for the access depends on several issues (terminal availability, frequency assignment policies, etc.) While for the backbone we can use all the communication technologies that allow us to provide high capacity links to the huge number of small access cells Antonio Capone http://antlab.elet.polimi.it 15
  16. 16. Mesh networking as a new paradigm for access networks Tradition IP networking is not really an option here due to the complexity of network deployment and configuration Mesh networking is the new paradigm for Mesh networking is the new paradigm for pervasive, high speed, heterogeneous pervasive, high speed, heterogeneous access network access network It’s the only approach that can today overcome the obstacles that prevent the creation of large high capacity access networks that exploits the best transmission technologies available Mobility support to nomadic/mobile users as a distinguishing feature Antonio Capone http://antlab.elet.polimi.it 16
  17. 17. New generation mesh devices New mesh devices will be able to be equipped with a large number of different interfaces and will be able to dynamically adapt to the application scenario Point-to-point BPLC wireless links WiMax Overlay virtual links LTE Ethernet Sensor networks PON ... WiFi, Hiperlan, ... Access technology (Today WiFi, tomorrow ??) Antonio Capone http://antlab.elet.polimi.it 17
  18. 18. Experimental Projects in the Academic Labs MIT Roofnet First experimental project Low cost HW Software open-source Other projects GeorgiaTech BWN-Mesh Rice University Rutgers Winlab ORBIT SUNY Stonybrook Hyacinth MobiMESH PoliMI Several academic projects have contributed to the commercial exploitation of the technology Antonio Capone http://antlab.elet.polimi.it 18
  19. 19. MobiMESH Project Started by ANTLab, Politecnico di Milano in 2004 Initial goal: Create an experimental platform for testing innovative solutions for routing, mobility management, network configuration and management MobiMESH first prototype Soon coupled with the goal of: Designing advanced mesh networking solutions and products for the market Thanks to the interest and support of VoiSmart Antonio Capone http://antlab.elet.polimi.it 19
  20. 20. MobiMESH Project MobiMESH is now a complete and innovative Wireless Mesh platform We continue to work on new services and network architectures The evolution toward the new generation of mesh networking devices is already a reality in our labs Antonio Capone http://antlab.elet.polimi.it 20
  21. 21. MobiMESH Today MobiMESH is also a MESH spin-off company of technology Politecnico di Milano made in Italy Thanks! Thanks! Questions? Questions? Partner industriale e commerciale Antonio Capone http://antlab.elet.polimi.it 21

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