Cargando…
Coherent Cooperative Relaying in Low Mobility Wireless Multiuser Networks.
Annotation
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Alemán |
| Publicado: |
Berlin :
Logos Verlag Berlin,
2010.
|
| Colección: | Series in Wireless Communications Ser.
|
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Intro; 1 Introduction; 1.1 Relaying Schemes; 1.2 Capacity Scaling; 1.3 Diversity-Multiplexing Tradeoff; 1.4 Hardware Imperfections; 1.5 Real-World Demonstrators; 1.6 Contribution and Outline; 2 System Model; 2.1 System Topology; 2.2 Channel Model; 2.3 Local Oscillator Phases and Equivalent Channels; 2.4 Traffic Patterns and Input/Output Relation; 2.5 Reference Scenario and Definition of the SNR; 2.6 Average Sum Rate; 3 Implementation Issues; 3.1 Relay Block Diagram; 3.2 LO Imperfections; 3.2.1 LO Frequency Offset; 3.2.2 Phase Noise; 3.2.3 Impact on AF Relaying; 3.3 I/Q Imbalance.
- 3.3.1 Transmitter Imbalance3.3.2 Receiver Imbalance; 3.3.3 Equivalent Baseband System Model; 3.3.4 Impact on Signal Quality; 4 Channel Estimation; 4.1 Channel Estimation and Dissemination; 4.2 Coherent Distributed Beamforming; 4.3 Channel Update Rate; 4.4 Channel Estimation Protocols; 4.4.1 Performance Measure; 4.4.2 Compound Channel Estimates and Required Number of Channel Uses; 4.4.3 Impact of Noise; 4.4.4 Performance Comparison; 5 Distributed Phase Synchronization; 5.1 Relay Phase Noise; 5.1.1 Phase Beacon at the Relays; 5.1.2 Phase Error; 5.2 Distributed Phase Synchronization Schemes.
- 5.2.1 Slave-Based Scheme5.2.2 Master-Based Scheme; 5.2.3 Comparison; 5.2.4 Phase Error; 6 Gain Allocation Schemes; 6.1 Transmit Power Constraint; 6.2 Multiuser Zero-Forcing Relaying; 6.2.1 Traffic Pattern III; 6.2.2 Traffic Pattern IV; 6.2.3 Impact of Phase Estimation Error; 6.2.4 Simulation Results; 6.3 Multiuser MMSE Relaying; 6.3.1 Linear Relaying, Generic Case; 6.3.2 Linear Relaying, Special Case; 6.3.3 Linear Distributed Antenna System, Generic Case; 6.3.4 Linear Distributed Antenna System, Special Case; 6.3.5 Impact of Phase Noise; 6.3.6 Simulation Results.
- 6.4 Impact of Relay Imperfections6.4.1 Noisy CSI; 6.4.2 Phase Noise; 6.4.3 Phase Synchronization Error; 7 The RACooN Lab; 7.1 General Description; 7.1.1 Baseband Processing; 7.1.2 System Operation; 7.1.3 Real-Time Features; 7.2 System Characteristics; 7.2.1 Transmit Power; 7.2.2 Analog Gain Control; 7.2.3 Imperfections; 7.3 Channel Measurements; 7.3.1 Measurement Scenario; 7.3.2 RACooN Setup; 7.3.3 Measurement Results; 7.4 RACooN Demonstrator; 7.4.1 System Setup; 7.4.2 Transmission Cycle; 7.4.3 Results; 8 Conclusions and Outlook.