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					      Helsinki University of Technology

Department of Electrical and Communication Engineering


 ‘’Using Powerline Communications in
     Control and Data Networking’’
                      by
                Samdani M. Golam




  Supervisor & Instructor: Prof. Timo O. Korhonen

           Master’s Thesis Presentation
           16th February, 2006, Espoo.
Acknowledgements

   Prof. Timo O. Korhonen
   Liu Er
   Omar Mukhter
   Other Colleagues and Friends.




This thesis work has been done in the project ’LED-PLC General Lighting
System’ at Communication Laboratory, HUT, sponsored by TEKES and
Several Companies.




Date: 16th February, 2006.                                 Samdani M Golam
                                      Masters Thesis Presentation, Communication Laboratory, HUT.
Agenda
   Introduction
   PLC Technology
   PLC Applications
   Technical Issues for PLC System
   Regulation & Standards
   Test Setup 1: PLC-LED General Lighting System
   Test Setup 2: Comparison of PLC & Ethernet Channel
   Test Setup 3: Bluetooth Extension to PLC


Date: 16th February, 2006.                        Samdani M Golam
                             Masters Thesis Presentation, Communication Laboratory, HUT.
     Introduction
   Powerline Communication (PLC),
    also known as Broadband Over
    Powerline (BPL) is a technique for
    sending high speed data through
    existing powerline as transmission
    medium.

   PLC creates a high speed data
    communications network using the
    medium and low voltage electric
    distribution grids which connects
    consumers to the Internet through
    any electric socket in the
    consumers home.

   Powerline is the worlds largest
    existing wired infrastructure.

     Date: 16th February, 2006.                               Samdani M Golam
                                         Masters Thesis Presentation, Communication Laboratory, HUT.
Introduction…
      The idea of sending data through the power distribution network is not new

-      First technique to make use of PLC for control message by the methods
       ‘Ripple Control’ in the early 1950s.

-      Earlier technology used low frequency and data rate was very low.

-      Recent development has been achieved bit rate of several Mbps.




    Date: 16th February, 2006.                                  Samdani M Golam
                                           Masters Thesis Presentation, Communication Laboratory, HUT.
   PLC Technology

               PLC System



 In-House                     Access


•Uses the Building's electrical
wiring to network computers and
devices within a building.



     •This technology employs the outside distribution powerlines (i.e.
     medium-voltage or low-voltage) overhead or underground. One system
     uses Orthogonal Frequency Division Multiplexing (OFDM) to distribute
     the PLC/BPL signal over a width bandwidth using many narrow-band
     sub-carriers. At the injector side, data from the backbone network is
                                                                         Samdani
    Date: 16th February, the OFDM signal format and then coupled onto one M Golam
     converted into 2006.
                                                    Masters Thesis Presentation, Communication Laboratory, HUT.
     phase of the MV powerline.
PLC Applications
    Broadband Services

   High Speed Internet Access
   Voice Over IP
   Video Streaming
   Home Networking
   Home Automation
   Home Security Systems
   Telemedicine Applications

    Utility Applications

   Automatic Meter Reading
   Internal Communications
   Demand Side Management
   Load monitoring
   Security Monitoring



Date: 16th February, 2006.                            Samdani M Golam
                                 Masters Thesis Presentation, Communication Laboratory, HUT.
Technical issues for PLC system
    Impedance mismatch in receiver side
    Channel attenuation
    Noise ( Background noise, Impulsive noise)
    Electromagnetic compatibility (EMC) issues
    - Potential radio interference
    - Outdoor powerlines are excellent radiators of frequencies used in BPL systems, so they behave
      as transmitting ( and receiving) antennas.
    - Complex work to be done in order to establish accepted rules by which BPL can be operated In a
      safety way and without
      interference.

                                       Zt          Coupling          PLC          Coupling
                                                    Circuit         Channel        Circuit
 General powerline
  communication                                                                                          Zl
     system
                                 Transmitter                                                       Receiver


Date: 16th February, 2006.                                              Samdani M Golam
                                                   Masters Thesis Presentation, Communication Laboratory, HUT.
Regulation & Standards
USA
 FCC part 15: Primary forum for
  resolving radio interference claims.
  Throughout 2004, FCC adopted rules
  to facilitate the deployment of BPL.

Europe:
  ECC: Report 24(May 2003)
  MPT 1570: UK standard
  NB30: German standard


Standards
  HomePlug 1.0: from HomePlug power
   alliances.
  IEEE P1901: Standards for BPL
   network (still working)




Date: 16th February, 2006.                                    Samdani M Golam
                                         Masters Thesis Presentation, Communication Laboratory, HUT.
Test setup 1: PLC-LED General
Lighting System

                                Ethernet i/f


        P
        L
        C
                                                           Embedded
        C                                                  Application
        h
        a
        n
        n
        e
        l


                         Ethernet i/f                           Serial i/f




Date: 16th February, 2006.                                          Samdani M Golam
                                               Masters Thesis Presentation, Communication Laboratory, HUT.
Test setup 1: Equipments and
working principle.
   PLC modem
        ITRAN PLNET13 Development Kit/ Phonex Neverwire 14
        Data rate up to 2.5/ 14 Mbps
   Microcontroller Board
        Wiznet EVB8051
        Embedded TCP/IP Ethernet Interface( WI3100)
   Embedded Application
      Receiving Control Information in Client Mode, Connected to Server Through
       Ethernet Interface.
      Controlling the LED matrix Through Serial Interface
   GUI Application
        Running in Server Mode
        Sending LED Control Information as per Operator Input.
   LED Matrix


Date: 16th February, 2006.                                       Samdani M Golam
                                            Masters Thesis Presentation, Communication Laboratory, HUT.
Test Setup 2: Comparison of PLC and
Ethernet Channel
   PLC and Ethernet Channels Comparison
   Custom-developed SW designed for PLC
    channel performance measurements
   measurement between 2 nodes : client
    server architecture
   Accuracy up to order of nanosecond
   Sends & receives data packets in a loop,
    and calculates average Round Trip Time
    (RTT)
   Dump the results into files automatically
   Data can be further analyzed using Matlab
    etc.
   Window size indicates nr. of times same
    packet is sent to calculate an avg. value of
    RTT

Date: 16th February, 2006.                                              Samdani M Golam
                                                   Masters Thesis Presentation, Communication Laboratory, HUT.
Test Setup 2: Results




                             Ethernet channel

Date: 16th February, 2006.                                Samdani M Golam
                                     Masters Thesis Presentation, Communication Laboratory, HUT.
Test Setup 2: Results




                             PLC Channel

Date: 16th February, 2006.                          Samdani M Golam
                               Masters Thesis Presentation, Communication Laboratory, HUT.
Test Setup 3: Bluetooth Extension to
PLC network.
   PLC modems
                                                         BT
   2 Laptop                                          Interface
        TCP/IP Com
   Embedded Application
                                                              Serial
        running on Laptop                                  Interface
                                                                                            PL
        Internetworking BT device and                                                      C
         PLC modem                                                         Ethernet         Int
                                                                           Interface        er-
   Nokia mobile                                                                            fac
        Symbian-based GUI to control                                                       e
                                                             Parallel
         the matrix                                         Interface

   LED-control Application
        Running on Laptop to control
         LED matrix via serial interface
   Blueottoth serial module
   LED Matrix


Date: 16th February, 2006.                                      Samdani M Golam
                                           Masters Thesis Presentation, Communication Laboratory, HUT.
Publications

   Recent Development of EMC Regulation in Power-Line
    Communications. WPMC'04, Abano Therme, Italy 13.-
    15. Sept., 2004. pp. 202-206.

   Development of High-rate Control System for LED-based
    General Lighting Application. ISPLC'05, Vancouver
    Canada, April 6-8, 2005.




Date: 16th February, 2006.                        Samdani M Golam
                             Masters Thesis Presentation, Communication Laboratory, HUT.
                             Any Question?


                              Thank You!


Date: 16th February, 2006.                              Samdani M Golam
                                   Masters Thesis Presentation, Communication Laboratory, HUT.

				
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