Communication Networks

Transmission Fundamentals

Di bawah ini adalah salah satu contoh simulasi yang dapat digunakan untuk lebih memahami konsep-konsep dasar gelombang:

Flash Interactive - Pistons and the Period of a Sine Curve (from www.intmath.com)

Here's another interactive that you can use to explore the concept of period and frequency. The frequency = 1/period. We'll see more on this below.

The piston engine is the most commonly used engine in the world. Its motion can be described using a sine curve.

Things to Do

1. Click "Start" and you will see a sine curve traced out as the piston goes up and down.
2. Now, change the value of b using the slider. If you increase b, the period for each cycle will go down and the frequency will increase. Click "Start" again to see the effect of your change.
3. Observe the number of cycles that you see between t = 0 and t = 2π. For b = 1 you see one cycle, for b = 2, you see 2 cycles, and so on. If b < 1, you do not see any complete cycles.

The units along the horizontal (time) axis are in radians. So 3.14 = π radians and 6.28 = 2π radians.



Di bawah ini contoh animasi menarik yang menjelaskan Time-division multiplexing (TDM):

(http://en.wikipedia.org/wiki/Multiplexing)

Introduction

Di bawah ini adalah slides pengantar kuliah Jaringan Nirkabel; meliputi sejarah, sistematika bab, dan ruang lingkup pembahasan. Penting untuk memberikan gambaran awal dan global tentang kuliah ini. Mohon dibaca juga aturan main dan petunjuk di bawah:



Adapun aturan kuliah kita adalah sebagai berikut:

1. Setiap kelompok memiliki tugas untuk menerjemahkan dan menjelaskan slides yang ada dengan bahasa yang lugas dan mudah difahami. Serta disertai dengan praktek, simulasi, atau pembuatan prototype (tidak hanya teori).
2. Setiap mahasiswa wajib terlibat dalam diskusi online melalui blog comments. Saya kadang kala akan memantik diskusi dengan beberapa pertanyaan/pernyataan. Tapi lebih bagus lagi kalau topik dari Anda sendiri. Waktu diskusi adalah seminggu sebelum sebuah topik/bab dipresentasikan. Setelah itu comments akan ditutup. Jangan lupa dengan nama asli (depan atau belakang), jangan nama alias karena tidak sesuai absensi.
3. Setiap mahasiswa wajib terlibat dalam diskusi offline ketika presentasi kelompok di kelas.
4. Have fun and enjoy!

Access Permissions Quiz

Access Permissions » online testing

Hosting Service

You will learn various hosting services like shared, dedicated and VPS (virtual private server). Also understand their differences, features and security issues.

Nat Firewall

Understand the basic concepts of NAT (network address translation) using Iptables firewall. And learn how to implement NAT rules for various application, such as internet connection sharing and Transparent Proxy.

Proxy Server

Learn how to configure and setup Squid Proxy Server. And understand how to implement ACL (access control list) to filter web sites and manage proxy connections.

Web Server

Learn how to configure and setup Apache Web Server, including virtual web sites and basic http authentications.

Web Mail

Learn how to configure and setup Web Mail using Squirrel Mail.

Linux Shell

Compression and Extraction

Learn how to compress and extract data using Linux command line interfaces. You will learn various compression format such as: zip, gz, bz2, tar.gz, tar.bz2, tgz, tbz2. Commands: zip, unzip, gzip, gunzip, bzip2, bunzip2, tar.

DNS Server Quiz

Linux DNS Server » Quiz Maker

Linux Partitions Quiz

Linux Partitions » ProProfs Quiz Maker

File Management Quiz

File Management » Make A Quiz

Bandwidth Monitoring

Learn how to monitor bandwidth usage in real time mode or graph it and display in web browser. Commands: bmon, bwm, bwm-ng, vnstat.

DNS Server

Learn how to install, configure and implement DNS Server using Bind9. Including primary, secondary, and virtual DNS Server. Also learn DNS Server interrogation techniques. Files: /etc/bind/named.local, /etc/bind/named.options, /etc/resolv.conf, /etc/bind/zones/.

Dovecot Server

Learn how to install and configure IMAP, POP3, IMAPS and POP3S Server using Dovecot. Including how to configure Mail Client to access those services. Files: /etc/dovecot/dovecot.conf.

Mail Server

Learn how to install, configure and build Mail Servers using Exim MTA. Including how to define Mail Servers in DNS configurations. File: /etc/exim4/update-exim4.conf.conf.

Iptables Filter Firewall

Understand the basic concepts of filter Firewall using Iptables. And learn how to implement firewall rules using command lines and scripts.