Digital communications principles and systems

This book aims to provide post graduate students and practising engineers with a thorough understanding in the core principles and design issues of digital communications to meet the industry demand for in-depth expertise in digital transmission techniques. This book describes the engineering concep...

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Bibliographic Details
Main Author:	Otung, Ifiok (Author)
Format:	Book
Language:	English
Published:	London, UK The Institution of Engineering and Technology 2014
Series:	IET telecommunications series 58
Subjects:	Digital communications Digital communications > Equipment and supplies > Design and construction
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Table of Contents:

Machine generated contents note: 1.Overview of digital communication
In Chapter One
1.1.Introduction
1.2.Building blocks of a digital communication system
1.2.1.Transmitter and receiver
1.2.2.Analogue and digital communication systems
1.2.3.Information source .2.4.Information sink
1.2.5.Channel
1.3.Signal processing tasks
1.3.1.Source coding
1.3.2.Multiplexing
1.3.3.Channel coding
1.3.4.Line coding
1.3.5.Carrier modulation
1.3.6.Spread spectrum
1.3.7.Synchronisation
1.3.8.Filtering operations
1.4.Why digital communication?
1.4.1.The digital revolution
1.4.2.Advantages of digital over analogue communication
1.4.3.Disadvantages of digital communication
1.5.Summary
2.Linear channels and systems
In Chapter Two
2.1.Introduction
2.2.Linearity and system classifications
2.3.Time-domain characterisation of LTI systems
2.4.Frequency-domain characterisation of LTI systems
2.5.Output spectral density of LTI systems
2.6.LTI system bandwidth
2.6.1.3-dB and null-bandwidths
2.6.2.Noise-equivalent bandwidth
2.7.Distortionless transmission
2.8.Multipath distortion
2.9.Terrestrial mobile radio channel
2.10.Summary
2.11.References
3.Non-linear systems
In Chapter Three
3.1.Introduction
3.2.Memoryless non-linear systems
3.3.Non-linear systems with memory
3.4.Simulation of non-linear systems
3.5.Intermodulation distortion
3.6.Summary
3.7.Reference
4.Sampling of base band and band pass signals
In Chapter Four
4.1.Introduction
4.2.The sampling concept and theorem
4.3.Sampling a sinusoidal signal
4.4.Base band signal sampling and alias distortion
4.5.Band pass signal sampling
4.6.Mathematical basis of sampling
4.7.Non-instantaneous sampling and aperture effect
4.8.Anti-alias filter
4.9.Summary
4.10.Reference
5.Quantisation and PCM
In Chapter Five
5.1.Introduction
5.2.Concept and classes of quantisation
5.3.Uniform quantisation
5.3.1.Quantisation design parameters and trade-offs
5.3.2.Shortcomings of uniform quantisation
5.4.Non-uniform quantisation
5.4.1.Ideal log-companding
5.4.2.A-law companding
5.4.3.μ-Law companding
5.4.4.Specification of companding
5.4.5.Companding gain and penalty
5.5.PCM
5.5.1.A-law and μ-law PCM
5.5.2.SQNR of A-law and μ-law PCM
5.6.Lossy compression
5.6.1.Waveform coders
5.6.2.Vocoder
5.6.3.Hybrid coder
5.7.Summary
5.8.References
6.Source coding and lossless data compression
In Chapter Six
6.1.Introduction
6.2.Classes and features of data compression
6.3.Information content and entropy
6.4.Prefix and non-prefix variable-length codes
6.4.1.Source coding theorem and code efficiency
6.4.2.The code space concept
6.5.Huffman coding
6.5.1.Encoding process
6.5.2.Decoding process
6.5.3.Weaknesses of Huffman coding
6.6.Lempel-Ziv coding
6.6.1.Run-length encoding (RLE)
6.6.2.Lempel-Ziv encoding process
6.6.3.Lempel-Ziv decoding process
6.6.4.Strengths and drawbacks of Lempel-Ziv
6.7.Arithmetic coding
6.7.1.Arithmetic encoding process
6.7.2.Arithmetic decoding
6.7.3.Arithmetic precision issue
6.7.4.Adaptive model
6.7.5.Weaknesses of arithmetic coding
6.8.Summary
6.9.References
7.Line codes
In Chapter Seven
7.1.Introduction
7.2.Classes and efficiency of line codes
7.3.Power spectral density of line codes
7.3.1.Autocorrelation and spectral density
7.3.2.PSD of random binary waveforms
7.3.3.PSD of general line code waveforms
7.4.Basic line codes
7.4.1.Nonreturn to zero (NRZ) line codes
7.4.2.Return to zero (RZ) line codes
7.4.3.Biphase line codes
7.5.Advanced codes
7.5.1.Run length limited (RLL) line codes
7.5.2.Block line codes
7.6.Summary
7.7.Reference
8.Transmission through band limited AWGN channels
In Chapter Eight
8.1.Introduction
8.2.ISI and bandwidth constraint on symbol rate
8.2.1.Nyquist filtering
8.2.2.Raised cosine filtering
8.2.3.Square root raised cosine filtering
8.2.4.Duobinary signalling
8.3.Noise constraint on bit rate
8.3.1.Characterisation of a discrete memoryless channel
8.3.2.Mutual information and channel capacity
8.3.3.Channel coding theorem and information capacity law
8.4.The matched filter
8.4.1.Heuristic approach
8.4.2.Mathematical basis
8.4.3.Matched filter as a correlator
8.5.Eye diagram
8.6.Summary
8.7.References
9.Transmitted digital signals
In Chapter Nine
9.1.Introduction
9.2.Geometric representation of signals
9.2.1.Orthogonality of signals
9.2.2.Signal space
9.3.Symbols in digital transmission systems
9.3.1.Base band systems
9.3.2.Modulated systems
9.4.Complex representation of signals
9.4.1.The Hilbert transform
9.4.2.Canonical and envelope representations
9.4.3.Application to noise
9.5.Signal correlation
9.5.1.Correlation of M-ary ASK symbols
9.5.2.Correlation of M-ary PSK symbols
9.5.3.Correlation of M-ary FSK symbols
9.5.4.Impact of symbol correlation
9.6.Coherent detection
9.6.1.Correlation receiver
9.6.2.Noise rejection in M-ary FSK
9.7.Digital modulators
9.7.1.M-ary ASK modulator
9.7.2.M-ary PSK modulator
9.7.3.M-ary QAM modulator
9.7.4.M-ary FSK modulator
9.8.Summary
9.9.References
10.Noise impact in digital transmission
In Chapter Ten
10.1.Introduction
10.2.Random signals
10.2.1.Random process
10.2.2.Random signal parameters
10.2.3.Stationarity and ergodicity
10.2.4.Additive white Gaussian noise
10.3.System noise quantification
10.3.1.Noise temperature and noise factor
10.3.2.Overall system noise temperature
10.3.3.Carrier-to-noise ratio
10.4.Basic analysis of noise impact
10.5.BER of binary transmission systems
10.5.1.PSK and bipolar base band
10.5.2.ASK and unipolar base band
10.5.3.FSK
10.5.4.Identical symbols
10.6.BER of M-ary transmission systems
10.6.1.Gray coding and BER
10.6.2.M-ary ASK
10.6.3.M-ary PSK
10.6.4.M-ary QAM
10.6.5.M-ary FSK
10.7.Summary
10.8.Reference
11.Error control coding
In Chapter Eleven
11.1.Introduction
11.2.General terminologies and classes
11.3.ARQ techniques
11.3.1.Stop and wait ARQ
11.3.2.Go-back-N ARQ
11.3.3.Continuous ARQ with selective repeat
11.3.4.Sliding window flow control
11.4.Effectiveness of error control codes
11.4.1.Error detection
1.4.2.Error correction
11.4.3.Interleaving and concatenation
1.5.Linear block codes
11.5.1.General concepts
11.5.2.Cyclic codes
11.5.3.Reed-Solomon code
11.6.Summary
11.7.Reference
12.Digital transmission link analysis and design
In Chapter Twelve
12.1.Introduction
12.2.Link analysis
12.3.Link design

Digital communications principles and systems

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