List of Figures -- List of Tables -- Preface -- 1. Introduction -- 1.1 Overview of UWB -- 1.2 Advantages of UWB -- 1.3 UWB Applications -- 1.4 UWB Transmission Schemes -- 1.5 Challenges for UWB -- 2. Channel Characteristics -- 2.1 Large-Scale Models -- 2.1.1 Path Loss Models -- 2.1.2 Shadowing -- 2.2 Small-Scale Models -- 2.2.1 Tap-delay line fading model -- 2.2.2 I - K model -- 2.2.3 Saleh-Valenzuela (S-V) model -- 2.2.4 Standard UWB Channel Model -- 3. UWB: Single Band Approaches -- 3.1 Overview of Single Band Approaches -- 3.2 Modulation Techniques -- 3.2.1 Pulse Amplitude Modulation (PAM) -- 3.2.2 On-Off Keying (OOK) -- 3.2.3 Phase Shift Keying (PSK) -- 3.2.4 Pulse Position Modulation (PPM) -- 3.3 Multiple Access Techniques -- 3.3.1 Time-Hopping UWB -- 3.3.2 Direct Sequence UWB -- 3.4 Demodulation Techniques -- 3.4.1 Received Signal Model -- 3.4.2 Correlation Receiver -- 3.4.3 Rake Receiver -- 3.5 MIMO Single Band UWB -- 3.5.1 MIMO Space-Time Coded Systems -- 3.5.2 Space-Time Coded UWB Systems -- 3.6 Performance Analysis -- 3.6.1 TH-BPPM -- 3.6.2 TH-BPSK -- 3.6.3 DS-BPSK -- 3.7 Simulation Results -- 3.8 Chapter Summary -- 4. UWB: Multiband OFDM Approach -- 4.1 Overview of Multiband OFDM Approach -- 4.1.1 Fundamental Concepts -- 4.1.2 Signal Model -- 4.2 IEEE 802.15.3a WPAN Standard Proposal -- 4.2.1 OFDM Parameters -- 4.2.2 Rate-Dependent Parameters -- 4.2.3 Operating Band Frequencies -- 4.2.4 Channelization -- 4.3 Physical Layer Design -- 4.3.1 Scrambler and De-scrambler -- 4.3.2 Convolutional Encoder and Viterbi Decoder -- 4.3.3 Bit Interleaver and De-interleaver -- 4.3.4 Constellation Mapper -- 4.3.5 OFDM Modulation -- 4.4 MAC Layer Design -- 4.4.1 Network Topology -- 4.4.2 Frame Architecture -- 4.4.3 Network Operations -- 4.5 Chapter Summary -- 5. MIMO Multiband OFDM -- 5.1 MIMO-OFDM Communications -- 5.2 MIMO Multiband OFDM System Model -- 5.2.1 Transmitter Description -- 5.2.2 Channel Model -- 5.2.3 Receiver Processing -- 5.3 Performance Analysis -- 5.3.1 Independent Fading.

5.3.2 Correlated Fading -- 5.4 Simulation Results -- 5.5 Chapter Summary -- 6. Performance Characterization -- 6.1 System Model -- 6.2 Performance Analysis -- 6.2.1 Average PEP Analysis -- 6.2.2 Approximate PEP Formulation -- 6.2.3 Outage Probability -- 6.3 Analysis for MIMO Multiband OFDM Systems -- 6.3.1 MIMO Multiband OFDM System Model -- 6.3.2 Pairwise Error Probability -- 6.3.3 Example: Repetition STF Coding based on Alamouti¿́¿s Structure -- 6.4 Simulation Results -- 6.5 Chapter Summary -- 7. Performance under Practical Considerations -- 7.1 System Model -- 7.2 Average Signal-to-Noise Ratio -- 7.2.1 Expressions of Fading Term, ICI, and ISI -- 7.2.2 Variances of Fading Term, ICI, and ISI -- 7.2.3 Average Signal-to-Noise Ratio and Performance Degradation -- 7.3 Average Bit Error Rate -- 7.3.1 Overall Spreading Gain of 1 -- 7.3.2 Overall Spreading Gain of 2 -- 7.3.3 Overall Spreading Gain of 4 -- 7.4 Performance Bound -- 7.5 Numerical and Simulation Results -- 7.5.1 Numerical Results -- 7.5.2 Simulation and Numerical Results -- 7.6 Chapter Summary -- Appendix: Derivations of A1, A2, B1, and B2 -- 8. Differential Multiband OFDM -- 8.1 Differential Modulation -- 8.1.1 Single-Antenna Systems -- 8.1.2 MIMO Systems -- 8.2 Differential Scheme for Multiband OFDM Systems -- 8.2.1 System Model -- 8.2.2 Differential Encoding and Transmit Signal Structure -- 8.2.3 Multiband Differential Decoding -- 8.3 Pairwise Error Probability -- 8.4 Simulation Results -- 8.5 Chapter Summary -- 9. Power Controlled Channel Allocation -- 9.1 System Model -- 9.2 Power Controlled Channel Allocation Scheme -- 9.2.1 Generalized SNR for Different Transmission Modes -- 9.2.2 PER and Rate Constraint -- 9.2.3 Problem Formulation -- 9.2.4 Subband Assignment and Power Allocation Algorithm -- 9.2.5 Joint Rate Assignment and Resource Allocation Algorithm -- 9.3 Simulation Results -- 9.3.1 Subband Assignment and Power Allocation -- 9.3.2 Joint Rate Assignment and Resource Allocation -- 9.4 Chapter Summary.

10. Cooperative UWB Multiband OFDM -- 10.1 Cooperative Communications -- 10.2 System Model -- 10.2.1 Non-Cooperative UWB -- 10.2.2 Cooperative UWB -- 10.3 SER Analysis for Cooperative UWB -- 10.3.1 Cooperative UWB -- 10.3.2 Comparison of Cooperative and Non-Cooperative UWB -- 10.4 Optimum Power Allocation for Cooperative UWB -- 10.4.1 Power Minimization using Cooperative Communications -- 10.4.2 Coverage Enhancement using Cooperative Communications -- 10.5 Improved Cooperative UWB -- 10.6 Simulation Results -- 10.7 Chapter Summary -- References -- Index.