book

RF and Digital Signal Processing for Software-Defined Radio

by Tony J. Rouphael

March 2009

Intermediate to advanced

400 pages

9h 13m

English

Newnes

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1.1. The Need for Software-Defined Radio1.2. The Software-Defined Radio Concept1.3. Software Requirements and Reconfigurability1.4. Aim and Organization of the Book
2.1. Amplitude Modulation2.2. Frequency and Phase Modulation2.3. Common Pulse-Shaping Functions
3.1. Channel Capacity Interpreted3.2. PSK Modulation3.3. FSK Modulation3.4. Continuous Phase Modulation (CPM)3.5. Gaussian MSK (GMSK)3.6. On-Off Keying (OOK)3.7. Quadrature Amplitude Modulation (QAM)3.8. Orthogonal Frequency Division Multiplexing (OFDM)3.9. Spread Spectrum Modulation3.10. Appendix

4.1. High-Level Requirements4.2. Link Budget Analysis4.3. Cascaded Noise Figure Analysis
5.1. 1-dB Compression Point Due to Memoryless Nonlinearities5.2. Signal Desensitization and Blocking5.3. Intermodulation Distortion5.4. Cascaded Input-Referred Intercept Points5.5. Cross Modulation Distortion5.6. Harmonics5.7. Phase Noise and Reciprocal Mixing5.8. Spurious Signals5.9. Appendix
6.1. Receiver Selectivity6.2. Receiver Dynamic Range6.3. AM/AM and AM/PM6.4. Frequency Bands, Accuracy, and Tuning6.5. Modulation Accuracy: EVM and Waveform Quality Factor6.6. Adjacent Channel Leakage Ratio (ACLR)6.7. Transmitter Broadband NoiseUncited References
7.1. Sampling of Lowpass Signals7.2. Sampling of Bandpass Signals7.3. The AGC Algorithm7.4. Appendix
8.1. Nyquist Converters8.2. Overview of Nyquist Sampling Converter Architectures8.3. Appendix
9.1. The Concept of ΔΣ Modulation9.2. Comparison between Continuous-Time and Discrete-Time ΔΣ Modulation9.3. SQNR Performance of ΔΣ Modulators9.4. Bandpass ΔΣ Modulators9.5. Common Architectures of ΔΣ Modulators9.6. Further Nonidealities in ΔΣ Modulators
10.1. Basics of Sample Rate Conversion10.2. Filter Design and Implementation10.3. Arbitrary Sampling Rate ConversionUncited References
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Content preview from RF and Digital Signal Processing for Software-Defined Radio

Chapter 3. Common Digital Modulation Methods

When designing a wireless communication system, there is always a tradeoff between bandwidth efficiency and power efficiency when it comes to selecting the appropriate modulation scheme. GSM, for example, uses GMSK which, as will be discussed later on, is a constant envelope modulation scheme that can operate in conjunction with highly efficient power amplifiers. This is true despite the variations introduced to the modulated signal due to filtering. GSM occupies 200 kHz of bandwidth and offers a raw data rate of 22.8 Kbps. Enhanced Data-rate for GSM Evolution (EDGE), on the other hand, occupies the same bandwidth as GSM but offers a raw data rate of 300 Kbps. The reason for the increased data rate ...