Cargando…
Nonlinear Digital Encoders for Data Communications.
This book presents digital encoders for data communications. After an introduction on data communications and different sequences, the authors present the frey encoder as a digital filter followed by the trellis-coded and parallel turbo trellis-coded modulation schemes using nonlinear digital encode...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Hoboken :
Wiley,
2014.
©2014 |
| Colección: | FOCUS Series.
|
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Cover; Title Page; Contents; Preface; Introduction; Chapter 1. Applications of Nonlinear Digital Encoders; 1.1. Secure communications using nonlinear digital encoders; 1.1.1. The general nonlinear digital encoder scheme; 1.1.2. Quasi-chaotic sequence properties; 1.1.3. An example of simple nonlinear digital encoder: the Frey chaotic encoder; 1.1.4. Simulation results revealing the quasi-chaotic properties for the sequences generated using the Frey encoder; 1.2. Chaotic spreading sequences for direct-sequence code division multiple access.
- 1.3. Sequence synchronization in discrete-time nonlinear systems1.3.1. An example of sequence synchronization using the inverse system; 1.3.2. The dead-beat synchronization method; 1.3.3. A communication scheme using the dead-beat synchronization; Chapter 2. Presentation of the Frey Nonlinear Encoder as a Digital Filter; 2.1. The mathematical analysis of the Frey encoder; 2.2. The definitions and properties of the unsigned and 2's complement signed sample operators; 2.3. The properties of the LCIRC nonlinear function used in the Frey encoder scheme.
- 2.4. The simulation of the Frey sequence generator block in Simulink: some practical considerations2.4.1. The transmitter chaotic sequence generator; 2.4.2. The receiver chaotic sequence generator and the dead-beatsynchronization with the transmitter block; 2.4.3. The Simulink implementations for the blocks used in the Frey chaoticcodec; Chapter 3. Trellis-Coded Modulation Schemes Using Nonlinear Digital Encoders; 3.1. The presentation of the Frey nonlinear encoder as a convolutional encoder.
- 3.2. Frey encoder trellis design optimization methods for pulse amplitude
- trellis-coded modulation (TCM) schemes3.2.1. Increasing the coding gain by reducing the representation code wordlength in the input; 3.2.2. Equivalence between a nonlinear and a linear encoder in a particularcase; 3.2.3. Generalized optimum encoder for a PAM-TCM transmission; 3.2.4. Increasing the coding gain by increasing the number of outputs; 3.3. Optimum nonlinear encoders for phase shift keying
- TCM schemes; 3.3.1. Rate-1/2 optimum encoder for a QPSK-TCM transmission.
- 3.3.2. Generalized optimum encoder for a PSK-TCM transmission3.4. Optimum nonlinear encoders for quadrature amplitude modulation
- TCM schemes; 3.5. Performance analysis of TCM data communications using modified nonlinear digital encoders: simulation results; Chapter 4. Parallel Turbo Trellis-Coded Modulation Schemes Using Nonlinear Digital Encoders; 4.1. Recursive convolutional-left circulate (RC-LCIRC) encoder in a turbo trellis-coded modulation (TTCM) scheme; 4.2. New recursive and systematic convolutional nonlinear encoders for parallel TTCM schemes.