1. Introduction.
Definition and Purpose. Basic Limitations of the Conventional
Approach. Spread Spectrum Principles. Organization of the Book.
2. Random and Pseudorandom Signal Generation.
Purpose. Pseudorandom Sequences. Maximal Length Linear Shift
Register Sequences. Randomness Properties of MLSR Sequences.
Conclusion. Generating Pseudorandom Signals (Pseudonoise) from
Pseudorandom Sequences. First- and Second-Order Statistics of
Demodulator Output in Multiple Access Interference. Statistics for
QPSK Modulation by Pseudorandom Sequences. Examples. Bound for
Bandlimited Spectrum. Error Probability for BPSK or QPSK with
Constant Signals in Additive Gaussian Noise and Interference.
Appendix 2A: Optimum Receiver Filter for Bandlimited Spectrum.
3. Synchronization of Pseudorandom Signals.
Purpose. Acquisition of Pseudorandom Signal Timing. Hypothesis
Testing for BPSK Spreading. Hypothesis Testing for QPSK Spreading.
Effect of Frequency Error. Additional Degradation When N is Much
Less Than One Period. Detection and False Alarm Probabilities.
Fixed Signals in Gaussian Noise (L=1). Fixed Signals in Gaussian
Noise with Postdetection Integration (L>1). Rayleigh Fading
Signals (L>/=1). The Search Procedure and Acquisition Time.
Single-Pass Serial Search (Simplified). Single-Pass Serial Search
(Complete). Multiple Dwell Serial Search. Time Tracking of
Pseudorandom Signals. Early-Late Gate Measurement Statistics. Time
Tracking Loop. Carrier Synchronization. Appendix 3A: Likelihood
Functions and Probability Expressions. Bayes and Neyman-Pearson
Hypothesis Testing. Coherent Reception in Additive White Gaussian
Noise. Noncoherent Reception in AWGN for Unfaded Signals.
Noncoherent Reception of Multiple Independent Observations of
Unfaded Signals in AWGN. Noncoherent Reception of Rayleigh-Faded
Signals in AWGN.
4. Modulation and Demodulation of Spread Spectrum Signals in
Multipath and Multiple Access Interference.
Purpose. Chernoff and Battacharyya Bounds. Bounds for Gaussian
Noise Channel. Chernoff Bound for Time-Synchronous Multiple Access
Interference with BPSK Spreading. Chernoff Bound for
Time-Synchronous Multiple Access Interference with QPSK Spreading.
Improving the Chernoff Bound by a Factor of 2. Multipath
Propagation: Signal Structure and Exploitation. Pilot-Aided
Coherent Multipath Demodulation. Chernoff Bounds on Error
Probability for Coherent Demodulation with Known Path Parameters.
Rayleigh and Rician Fading Multipath Components. Noncoherent
Reception. Quasi-optimum Noncoherent Multipath Reception for M-ary
Orthogonal Modulation. Performance Bounds. Search Performance for
Noncoherent Orthogonal M-ary Demodulators. Power Measurement and
Control for Noncoherent Orthogonal M-ary Demodulators. Power
Control Loop Performance. Power Control Implications. Appendix 4A:
Chernoff Bound with Imperfect Parameter Estimates.
5. Coding and Interleaving.
Purpose. Interleaving to Achieve Diversity. Forward Error Control
Coding - Another Means to Exploit Redundancy. Convolutional Code
Structure. Maximum Likelihood Decoder - Viterbi Algorithm.
Generalization of the Preceding Example. Convolutional Code
Performance Evaluation. Error Probability for Tailed-off Block. Bit
Error Probability. Generalizations of Error Probability
Computation. Catastrophic Codes. Generalization to Arbitrary
Memoryless Channels - Coherent and Noncoherent. Error Bounds for
Binary-Input, Output-Symmetric Channels with Integer Metrics. A
Near-Optimal Class of Codes for Coherent Spread Spectrum Multiple
Access. Implementation. Decoder Implementation. Generating Function
and Performance. Performance Comparison and Applicability.
Orthogonal Convolutional Codes for Noncoherent Demodulation of
Rayleigh Fading Signals. Implementation. Performance for L-Path
Rayleigh Fading. Conclusions and Caveats. Appendix 5A: Improved
Bounds for Symmetric Memoryless Channels and the AWGN Channel.
Appendix 5B: Upper Bound on Free Distance of Rate 1/n Convolutional
Codes.
6. Capacity, Coverage, and Control of Spread Spectrum Multiple
Access Networks.
General. Reverse Link Power Control. Multiple Cell Pilot Tracking
and Soft Handoff. Other-Cell Interference. Propagation Model.
Single-Cell Reception - Hard Handoff. Soft Handoff Reception by the
Better of the Two Nearest Cells. Soft Handoff Reception by the Best
of Multiple Cells. Cell Coverage Issues with Hard and Soft Handoff.
Hard Handoff. Soft Handoff. Erlang Capacity of Reverse Links.
Erlang Capacity for Conventional Assigned-Slot Multiple Access.
Spread Spectrum Multiple Access Outage - Single Cell and Perfect
Power Control. Outage with Multiple-Cell Interference. Outage with
Imperfect Power Control. An Approximate Explicit Formula for
Capacity with Imperfect Power Control. Designing for Minimum
Transmitted Power. Capacity Requirements for Initial Accesses.
Erlang Capacity of Forward Links. Forward Link Power Allocation.
Soft Handoff Impact on Forward Link. Orthogonal Signals for
Same-Cell Users. Interference Reduction with Multisectored and
Distributed Antennas. Interference Cancellation. Epilogue.
References and Bibliography.
Index.
Andrew J. Viterbi is a pioneer of wireless digital communications technology. He is best known as the creator of the digital decoding technique used in direct-broadcast satellite television receivers and in wireless cellular telephones, as well as numerous other applications. He is co-founder, Chief Technical Officer, and Vice Chairman of QUALCOMM Incorporated, developer of mobile satellite and wireless land communication systems employing CDMA technology. Dr. Viterbi has received numerous awards, including the Christopher Columbus Medal, the IEEE Alexander Graham Bell Award, the Marconi International Fellowship Award, the IEEE Information Society Shannon Lecturer Award, and awards from the NEC C&C Foundation and the Eduard Rhein Foundation. 0201633744AB04062001
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