AGC and quantization effects in a zero-forcing MIMO wireless system

Boyd M. Murray*, Iain B. Collings

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

27 Citations (Scopus)

Abstract

This paper considers automatic gain control (AGC) and quantization for multiple-input multiple-output (MIMO) wireless systems. We examine the effect of clipping and quantization on capacity and bit error rate (BER). We find that even quite low resolution quantizers can perform close to the capacity of ideal unquantized systems. Results are presented for BPSK and M-ary QAM, and for 2×2, 3×3, and 4×4 MIMO configurations. We find that in each case less than 6 quantizer bits are required to achieve 98% of unquantized capacity for SNRs above 15dB.

Original languageEnglish
Title of host publication2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Proceedings
Place of PublicationPiscataway, N.J.
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1802-1806
Number of pages5
Volume4
ISBN (Print)0780393929, 9780780393929
Publication statusPublished - 2006
Externally publishedYes
Event2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Melbourne, Australia
Duration: 7 May 200610 Jul 2006

Other

Other2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring
CountryAustralia
CityMelbourne
Period7/05/0610/07/06

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