Title :
On MIMO Relay with Finite-Rate Feedback and Imperfect Channel Estimation
Author :
Yi, Byung ; Wang, Shu ; Kwon, Soon Y.
Abstract :
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.
Keywords :
MIMO communication; antenna arrays; channel estimation; radiofrequency interference; MIMO relay network throughput; codebook size; end-to-end throughput; finite-rate feedback; imperfect channel estimation; inter-beam interference; multi-antenna transceiver; quantization errors; random beamforming; relay network; Array signal processing; Channel estimation; Computer simulation; Feedback; Interference; MIMO; Quantization; Relays; Throughput; Transceivers;
Conference_Titel :
Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-1042-2
Electronic_ISBN :
978-1-4244-1043-9
DOI :
10.1109/GLOCOM.2007.737
