1 / 175

Trainning Wireless LAN Computer Network Lab Mei,2007

Trainning Wireless LAN Computer Network Lab Mei,2007. Garis besar pembahasan. Bab 1: Pengenalan Wireless LANs Bab 2: Dasar Radio Frequency(RF) Bab 3: Teknologi Spread Spectrum Bab 4: Infrastruktur peralatan Wireless LAN Bab 5: Antennas dan aksesoris

dahlia
Download Presentation

Trainning Wireless LAN Computer Network Lab Mei,2007

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Trainning Wireless LAN Computer Network Lab Mei,2007

  2. Garis besar pembahasan • Bab 1: Pengenalan Wireless LANs • Bab 2: Dasar Radio Frequency(RF) • Bab 3: Teknologi Spread Spectrum • Bab 4: Infrastruktur peralatan Wireless LAN • Bab 5: Antennas dan aksesoris • Bab 6: Organisasi dan standard wireless LAN

  3. Bab 7 : Arsitektur jaringan 802.11 • Bab 8 : Layer MAC dan Physical • Bab 9 : Teknologi instalasi Wireless LAN • Bab 10: Keamanan • Bab 11: Dasar penelitian • Bab 12: Lab pengadaan

  4. Aplikasi wireless LAN • Dikembangkan dalam akses atau aturan distribusi • Low-cost untuk building to building conectivity • Metode kecepatan akses • Memberikan flexibility untuk pengguna mobile(roaming) • Penggunaan SOHO • Moveable network (mobile office, hostpital,classroom) • Metropolitan Area Wireless Networks

  5. FCC • Membuat peraturan penggunaan frekuensi RF dan daya output limit untuk united state • Mendisain penggunaan parameter ISM dan UNI band, seperti: • Penggunaan band frekuensi • Power output limit • Penggunaan lisence-free band frekuensi • Tipe transmisi RF(teknologi kecepatan spektrum) • www.fcc.com

  6. IEEE • Membuat standard industri WLAN pada United State • Membuat 802.11 dan subsequent standard WLAN • Membuat standard dalam batas-batas aturan FCC • www.ieee.com

  7. Tujuan Pada bab ini diharapkan anda mampu: • Menggambarkan kebiasaan dari RF • Menjelaskan variabel involved dengan antenna dan RF • Operasi matematis untuk membangun sistem FCC compliant

  8. Radio Frekuensi • Apa itu RF...? • Refleksi (Pencerminan) • Refraksi (Pembiasan ) • Difraksi (Pembauran ) • Scaterring (Pembelokan) • Absorption (Penyerapan) • Gain dan Loss

  9. Antenna

  10. Perhitungan RFHubungan antara 10’s dan 3’s

  11. Nilai Referensi RF Math • -3 dB = half the power in mW • +3 dB = double the power in mW • -10 dB = one tenth the power in mW • +10 dB = ten times the power in mW

  12. Hubungan antara mWatt dan dB dB dapat ditunjukkan dengan nilai yang kecil Daya memerlukan nilai miliwatt yang besar

  13. Permasalahan 1 perhitungan RF

  14. Permasalahan 2 Perhitungan RF

  15. Permasalahan 3 Perhitungan RF

  16. Permasalahan 4 Perhitungan RF

  17. Permasalahan 5 Perhitungan RF

  18. Spread Spectrum

  19. Coding Dan Modulation 802.11 & 802.11b

  20. Coding Dan Modulation 802.11a

  21. Frequency Hopping Spread Spectrum • Contoh pada sistem frekuensi hopping Co-located.

  22. Urutan Langsung Spread Spectrum

  23. Access Point

  24. Menggunakan Access Points

  25. Mode Access Points

  26. Access Points Mode Repeater

  27. Access Points Mode Bridge

  28. Wireless Bridge

  29. Menggunakan Wireless Bridge

  30. Wireless Workgroup Bridges

  31. Menggunakan Wireless Workgroup Bridges

  32. PCMCIA Cards dan Converters Ethernet dan Serial Converter

  33. Wireless Adapters

  34. Wireless Gateway Area

  35. Menggunakan Wireless Gateway Area

  36. Wireless Gateway Perusahaan

  37. Dipole/Omni Antenna

  38. Hubungan Point-to-Multipoint

  39. Pola Antena radiasi Omni-directional

  40. Pola Antena radiasi High-Gain Omni-directional

  41. Antena Semi-directional

  42. Hubungan Point-to-Point Wireless Bridge

  43. Pola antena Radiasi Semi-directional

  44. Antena Highly-directional Dish

More Related