What is IPC and Why we need it? IPC is a mechanism using which two or more process running on the same machine exchange their personal data with each other. Communication between processes runni...

Vi You can use vi to edit any text file. vi copies the file to be edited into a buffer, displays the buffer, and lets you add, delete, and change text. When you save your edtis, vi copies the edi...

Operation System Linux Kernel Development, 3rd Edition Operating System Concepts Core Algorithm in Linux Kernel Linux Professional Linux Kernel Architecture Understanding Linux Kernel Linux Devi...

Hardware Support Development Tools Kernel Considerations Root Filesystem Content Storage Device Manipulation Root Filesystem Setup Setting Up the Bootloader Setting Up Networking Serv...

802.11 Frame Types Frame Type Function Message Management Establish and maintain connections Beacon, Probe, Authentication ...

Radio Waves Wireless communication involves the transmission of information over the air by radio waves, which radiate and propagate through space. Radio waves are a type of electromagnetic ...

Channel Bonding Broadening the spectrum will improve wireless transmission rates, similar to how widening a road will increase transportation capacity. 802.11a and 802.11g use channels with 2...

Roaming Overview Although WLAN uses wireless media to improve user mobility, it brings new challenges, such as ensuring that user experience is guaranteed. As high signal quality is required t...

Message Flow The Block Ack mechanism improves channel efficiency by aggregating several acknowledgments into one frame. There are two types of Block Ack mechanisms, immediate and delayed. Immedia...

Wi-Fi Protected Setup (WPS) or Wi-Fi Simple Configure (WSC) is an optional certification program based on technology designed to ease the setup of security enabled Wi-Fi networks in home and small ...