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Low complexity MMSE based channel estimation technique for LTE OFDMA systems

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journal contribution
posted on 2010-11-01, 00:00 authored by M Rana, Abbas KouzaniAbbas Kouzani
Long term evolution (LTE) is designed for high speed data rate, higher spectral efficiency, and lower latency as well as high-capacity voice support. LTE uses single carrierfrequency division multiple access (SC-FDMA) scheme for the uplink transmission and orthogonal frequency division multiple access (OFDMA) in downlink. The one of the most important challenges for a terminal implementation are channel estimation (CE) and equalization. In this paper, a minimum mean square error (MMSE) based channel estimator is proposed for an OFDMA systems that can avoid the ill-conditioned least square (LS) problem with lower computational complexity. This channel estimation technique uses knowledge of channel properties to estimate the unknown channel transfer function at non-pilot subcarriers.

History

Journal

International journal of computer science and information security

Volume

8

Pagination

52 - 56

Location

Pittsburgh, Pa.

Open access

  • Yes

ISSN

1947-5500

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2010, The Authors

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