On MIMO Relay with Finite-Rate Feedback and Imperfect Channel Estimation
| Autor: | Soon Yil Kwon, Byung K. Yi, Shu Wang |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
3G MIMO
Beamforming Computer science business.industry ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS MIMO Codebook Throughput Data_CODINGANDINFORMATIONTHEORY Precoding Multi-user MIMO Network planning and design Hardware_GENERAL Computer Science::Networking and Internet Architecture Electronic engineering business Capacity loss Relay channel Computer Science::Information Theory Communication channel Computer network |
| Zdroj: | GLOBECOM |
| Popis: | We investigate how finite-rate feedback and imperfect channel estimation impact MIMO relay network throughput and design in this paper. We start from multi-antenna transceiver with random beamforming and formulate the SNR and capacity loss due to channel estimation and quantization errors. We thereafter extend the analysis to multi-antenna relay network with multiple MIMO relay hops and discuss how the end-to-end throughput is scaled by MIMO pilot size, codebook size, relay network size and inter-beam interference. Some tradeoffs for MIMO relay network design are revealed. Computer simulations are provided to demonstrate our results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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