Digital Communications SystemsDigital communication is a mode of communication where the information or the thought is encoded digitally as discreet signals and electronically transferred to the recipients. Digital communication is one of the most commonly used mode of communication in the current scenario. Organizations generally rely on this mode for all their business communications.
Signals and Spectra:
Various aspects of signals and spectra which include signal classification, digital communication signal processing, autocorrelation, concepts of noise, process types and information on baseband systems.
Formatting and Baseband Modulation:
Analog signals and its formatting, corruption sources, quantization models, pulse code modulation, baseband transmissions, sampling models and correlative models.
Baseband Demodulation and Detection:
Various concepts of digital bandpass modulation, coherent detection and signalling and performance measurement and parameters.
Communication Link Analysis:
Techniques underlying the analysis of link budget, error control policies related to the analysis of link budget and noise parameters.
Waveform coding, sampling concepts that include error detection and correction, structured sequences, encoding and decoding using convolutional methods, convolution codes, reed-solomon codes, interleaving codes, concatenated codes, turbo codes, various convolution theorems and sampling techniques.
Modulation and Coding Trade-off:
Bandwidth efficiency, bandwidth modulation, digital communication system evaluation techniques, trellis coded modulation, amplifier techniques and entropy concepts.
Receiver synchronization and network synchronization concepts.
Multiplexing and Multiple Access:
Spread spectrum, LAN techniques and algorithms, INTELSAT, TDM, FDM, their similarities and differences and code division multiple access techniques.
Spread Spectrum Techniques:
Pseudo noise sequencing, jamming, frequency hopping, tracking and acquisition techniques, cellular and cipher systems and their secrecy, stream encryption and spread spectrum techniques.
Encryption and Decryption:
Concepts of public key cryptography and pretty good privacy policies.
Signal time spreading, mobile radio propagation, diversity techniques, diversity techniques, rake receivers, fading effects and decision theory techniques.
Abstraction techniques, layering techniques, protocols, random processes and interfaces.
Error Detection & Channel Coding:
Coding techniques, error detection and correction techniques, interpolation techniques and information coding techniques.