Code Division Multiple Access (CDMA)

Code Division Multiple Access (CDMA)

Code division multiple access technique is an example of multiple access where several transmitters use a single channel to send information simultaneously. Its features are as follows. In CDMA every…
Space Division Multiple Access (SDMA)

Space Division Multiple Access (SDMA)

Space division multiple access or spatial division multiple access is a technique which is MIMO (multiple-input multiple-output) architecture and used mostly in wireless and satellite communication. It has the following…
MAC Protocols

MAC Protocols

The Medium Access Control (MAC) protocol is used to provide the data link layer of the Ethernet LAN system. The MAC protocol encapsulates a SDU (payload data) by adding a…
Spread Spectrum

Spread Spectrum

Spread Spectrum : Introduction When transmitted signals of certain frequencies are varied slightly in order to obtain greater bandwidth as compared to initial bandwidth is known as Spread Spectrum. Spread…
Multiplexing in Mobile Computing

Multiplexing in Mobile Computing

Multiplexing : Introduction Multiplexing is a technique in which, multiple simultaneous analog or digital signals are transmitted across a single data link. The concept behind it is very simple: Proper Resource…
Communication Technologies

Communication Technologies

Since the introduction of first commercial mobile phone in 1983 by Motorola, mobile technology has come a long way. Be it technology, protocols, services offered or speed, the changes in…
What is Mobile Computing?

What is Mobile Computing?

Mobile Computing is a technology that allows transmission of data, voice and video via a computer or any other wireless enabled device without having to be connected to a fixed…