Digital Signal Processing in Communications Systems or Wireless Internet Telecommunications

Digital Signal Processing in Communications Systems

Author: Marvin E Frerking

A great deal of modern communications equipment is being converted from analog to digital technology. This timely book explains many of the important concepts related to digital signal processing in easy-to-understand discussions of communications techniques, data transmission, filters, and hardware. Readers are given practical information on how to apply theory and algorithms to the design of radio receivers and transmitters. Among the areas discussed are analog to digital conversion - with emphasis on noise and distortion performance; manipulation of complex signals - positive and negative frequencies, plus Hilbert transformers; digital filters - guidelines for performance in communications, plus decimation and interpolation; hardware - multiplier accumulators, fast Fourier transform processors, digital signal processors, data flow techniques in equipment, and hardware simulation and testing; and speech processing - linear predictive coding (LPC), code excited linear predictive coding (CELP), and how to digitize speech at low data rates. Development of algorithms for oscillators, detectors, modulators, automatic gain control circuits, and other devices is clearly explained. Specific algorithms are provided for AM modulation, frequency modulation, FM detection, threshold extension, audio compression, automatic gain control, and squelch circuitry. Explanations of basic concepts of digital signal processing and data transmission are accompanied by reviews of signal representations, sampling, convolution, and z-transforms. Extensive real-world examples contribute to expertise in many facets of incorporating digital technology into devices. This hands-on treatment of DSP will help communications engineers upgrade their skills in digital signal processing and make a smooth transition into the design of more advanced systems. It also meets the needs of students who want to bolster their knowledge in communications.

Table of Contents:

	Preface
	Acknowledgment
	Symbols and Abbreviations
1	Introduction	1
2	Digital Signal Processing Concepts	6
3	Analog-to-Digital Conversion	72
4	Processing Complex Signals	113
5	Digital Filters	152
6	Digital Algorithms for Communication Systems	212
7	Digital Receiver/Exciter Design	305
8	Data Transmission	392
9	Speech Processing	490
10	DSP Hardware	548
	Appendix A - Derivation of Aperture Jitter Effects	577
	Appendix B - Derivation of Constants for IIR Oscillator	581
	Appendix C - Derivation of Equations for Function Table	585
	Appendix D - Error Rate for Differentially Encoded Phase Shift Keying	592
	Appendix E - Derivation of Error Rate for Incoherent FSK Data Transmission	597
	Appendix F - Cordic Algorithm	600
	Appendix G - Noise in a Sigma-Delta Modulator	604
	References	613
	Index	618

Book about: Style :les Leçons dans la Clarté et la Grâce

Wireless Internet Telecommunications (Artech House Mobile Communications Series)

Author: K Daniel Wong

Internet and wireless technologies are converging towards an exciting future that we've only begun to realize. For professionals who have a background in the Internet or in mobile telephony — but not in both — this integrated "how it works" guide offers a practical understanding of wireless Internet communications, the technology components involved, and how they fit and work together. It provides a unified picture of important protocols for multimedia transport and session control, and explains what's being done to tackle tough challenges in QoS control, mobility management, and security in the wireless environment. With enhancements to the next generation of the Internet protocol expected to provide greater support for wireless IP networks, the next Internet revolution may be just around the corner. This book provides professionals with what they need to know about the techniques and architectures that will get us there.

 

Market

Network architects; system engineers; and network software engineers; as well as university students in electrical engineering and computer science courses.

 

Contents

Overview - Introduction. Components of the Internet. Wireless Networks. Relevant Internet Technologies - Multimedia Transport. Session Control. Quality of Service. Security. Mobility. IPv6. Services, Applications and Other Miscellaneous Topics. IMS in UMTS - Evolution from GSM to UMTS. The IP Multimedia Sub-System (IMS). Looking Ahead - Future Possibilities. Conclusions. Glossary. References.

 

 

 

About the Author

K. Daniel Wong is a research scientist at Telcordia Technologies in New Jersey, where he is involved in research, development, design, and prototyping in wireless communications systems, including 3G cellular and WLAN; mobility management; broadband fixed wireless access; and Internet security. He received his Ph.D. in electrical engineering from Stanford University.