Matlab based communication projects

To convey a signal from the transmitter to receiver communication channel is required. The daily information transmission is supported mostly by digital communication system such as telephone channels, satellite channels, microwave radio etc.

Characterizing of gathered idea source and source encoding has a reasonable beginning in introduction of digital communication systems design and analysis electrical communication system elements

  • Receiver
  • Channel
  • Transmitter
  • Output Transducer
  • Input Transducer

In many areas digital communication has its uses Digital-to-Analog converter (DAC) is needed for the transmitter where as Analog-to-Digital converter (ADC) is required for receiver. We could use phase-shift keying (PSK) for deep space communication where power efficiency plays a vital part.

The functional task which is carried out at the transmitter and the receiver must add message signal discretization and expand at transmitter and message signal synthesis or outburst  the receiver are done in digital communication system.

Electromagnetic wave propagation through space is used for communication. Components of digital communication system.

  • Digital modulator
  • Channel encoder
  • Channel decoder
  • Source decoder
  • Digital demodulator

Seven groups of transforming digital communication

  • Spreading
  • Synchronization
  • Encryption
  • Channel coding
  • Modulation / Demodulation
  • Formatting and source coding
  • Multiple accesses & Multiplexing

To predict channel distortion an adaptive filter is used in communication system.

The amount of data that can be transformed reliably over a band specified channel when many amplitude levels are used, which must be consider Nyquist concept.

To achieve many user oriented task several transmission protocols in wireless manner are used, such as

  • Zigbee
  • LMDS
  • WiMax
  • Wireless local loop
  • Bluetooth
  • Wireless Local Area Networks

To determine the wave length in meters for frequency divide 300 by frequency in megahertz so as to calculate radio wavelength.

To simulate communications systems matlab is used. Channel coding, source coding channel models, interleaving, modulation, synchronization, MIMO and equalization are used in algorithms for designing the physical layer of communication systems. Combination of letters and digits, starting with a letter are contained in legal variable.