Maximizing the Cutoff Rate in a Quantized MIMO Wireless System with AGC

Murray, BM; Reisenfeld, S

Maximizing the Cutoff Rate in a Quantized MIMO Wireless System with AGC

Murray, BM Reisenfeld, S

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Publication Type:: Conference
Issue Date:: 2007-03-12T22:05:30Z

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Field	Value	Language
dc.contributor.author	Murray, BM
dc.contributor.author	Reisenfeld, S
dc.date.accessioned	2007-03-12T22:05:30Z
dc.date.accessioned	2012-12-15T02:29:31Z
dc.date.available	2007-03-12T22:05:30Z
dc.date.available	2012-12-15T02:29:31Z
dc.date.issued	2007-03-12T22:05:30Z
dc.identifier.uri	http://hdl.handle.net/10453/19586
dc.description.abstract	We investigate the effects of quantization and AGC (Automatic Gain Control) in MIMO (Multiple Input Multiple Output) wireless systems. We derive the cutoff rate equations for a deterministic MIMO channel with quantization at the receiver inputs and demonstrate by numerical simulation the dependence of the cutoff rate on the receiver AGC settings. Then we propose a fast AGC algorithm to maximize the cutoff rate for each channel realization and use it in numerical simulations to evaluate the quantized MIMO system performance in a Rayleigh channel. We find that even quite low resolution quantizers yield cutoff We find that even quite low resolution quantizers yield cutoff rates very close to those of equivalent unquantized systems when the fast AGC algorithm is applied. Results are presented for BPSK and QPSK modulations for a 2£2 MIMO configuration in deterministic and Rayleigh channels.	en_AU
dc.format.extent	304117 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en_AU
dc.relation.replaces	http://hdl.handle.net/2100/73
dc.title	Maximizing the Cutoff Rate in a Quantized MIMO Wireless System with AGC	en_AU
dc.type	Conference
utslib.copyright.status	open_access

Abstract:

We investigate the effects of quantization and AGC (Automatic Gain Control) in MIMO (Multiple Input Multiple Output) wireless systems. We derive the cutoff rate equations for a deterministic MIMO channel with quantization at the receiver inputs and demonstrate by numerical simulation the dependence of the cutoff rate on the receiver AGC settings. Then we propose a fast AGC algorithm to maximize the cutoff rate for each channel realization and use it in numerical simulations to evaluate the quantized MIMO system performance in a Rayleigh channel. We find that even quite low resolution quantizers yield cutoff We find that even quite low resolution quantizers yield cutoff rates very close to those of equivalent unquantized systems when the fast AGC algorithm is applied. Results are presented for BPSK and QPSK modulations for a 2£2 MIMO configuration in deterministic and Rayleigh channels.

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http://hdl.handle.net/10453/19586