Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Recent content by ironheart

  1. I

    How a HSDPA/UMTS Data Card works and how it is designed?

    - Data card is used for 2 interface: PCMCIA and Express (34/54) of Laptop - It ensure stable connected network and good quality of signal - Save electronic cause of used 1.5V and 3.3V - GPS world location.
  2. I

    Difference : 2G and 3G

    This is the document that you can read and reference. I think it will useful for you Free File Hosting & Video Downloads, Free File Sharing, Online Friends Network - Ziddu
  3. I

    centre carrier frequency in UMTS

    In GSM, bandwidth is 200khz and it uses TDMA technology (frequency and timeslot) and In UMTS, bandwidth is 5Mz and it used WCDMA (Scrambling code and Pilot code)
  4. I

    Network problem - he page is not loaded unless i restart PC

    If your some pages can load and other pages can not load, you should check proxy. inverse, you should scan virus or install again your system
  5. I

    Difference between Wireless and computer networks

    You should read document about wireless communication systems it is better
  6. I

    Is IP packet switched or circuit switched ?

    Is IP packet switched ? What is your meaning? PS is Packet Switch, CS is Circuit Switch
  7. I

    why circuit switching is not used in internet connection ?

    In fact, we have Voip or IP telephone that use to combine CS and PS. The rule of this technology require converting analog - digital - analog.
  8. I

    help needed - Matlab MIMO simulation

    You can find out in internet to get this code, it is very easy, to understand about code of MIMO channel. i suggest for you, you should find out BPSK, rayleigh fading, MIMO to study.
  9. I

    about space-frequency/space-time-frequency coding of OFDM

    Re: about space-frequency/space-time-frequency coding of OFD Better, you should read about alamouti code firstly because it is special statement of space time code. This is matlab code of alamouti code, you can use it for reference.
  10. I

    What is the difference between GSM and CDM?

    GSM and CDM You should read in detail about GSM or CDMA firstly, after you select topic, i think it is better for you. I give you some ideas: Handover or Power control...
  11. I

    Difference : 2G and 3G

    difference 2g and 3g here, i mean WCDMA, not CDMA
  12. I

    GSM mobile call setup Sequence

    gsm call setup procedure thank you, if you finished them please share me
  13. I

    I need the maximum power supported by the BTS in uplink

    maximum power for 3G exactly! it is maximum, there are many stituation uplink power is smaller if BTSs put at rural or mountain where number of subcriber is small. In other stituation, if BTS measure total power of users is larger, call drop is happen. Hence, normally, provider alway put <100%
  14. I

    I need the maximum power supported by the BTS in uplink

    maximum power for 3G as i said above, is value = 60W or 80W even other depend on each provider
  15. I

    I need the maximum power supported by the BTS in uplink

    maximum power for 3G For Uplink power, you can not know maximum power because in 3G, different users have different power and at the same time, total power of users = 80% or 100% maximum power of downlink, this depend on during installation.
See more

Part and Inventory Search

Back
Top