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A novel noise power and SNR estimation in WiMAX systems

R.S., Manzoor and V., Jeoti and N.S., Kamel and M., Asif (2008) A novel noise power and SNR estimation in WiMAX systems. In: International Symposium on Information Technology 2008, ITSim, 26 August 2008 through 29 August 2008, Kuala Lumpur.

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Abstract

In this paper, a novel noise power and SNR estimator based on one OFDM preamble is proposed. The estimator, unlike others, performs noise power estimation at the front-end of the receiver. The proposed estimator is compared with previously published SNR estimators - none of which are front end estimator. The estimator makes use of two identical halves property of time synchronization preamble used in WiMAX systems [IEEE802.16, 2004] and relies on autocorrelation of the same. SUIChannels are used for simulations in this work. The current estimator is compare with Reddy estimator and Subspace based estimator in terms of normalized mean square error (NMSE) and estimated SNR .It is observed that current estimator gives SNR estimates better than Reddy and subspace estimators. Complexity of the system is decreased because current estimator makes use of one OFDM preamble. © 2008 IEEE.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Frequency allocation; Frequency division multiplexing; Information technology; Interoperability; Orthogonal frequency division multiplexing; Signal to noise ratio; Current estimators; Front ends; Noise powers; Normalized mean square errors; SNR estimations; Subspace based; Subspace estimators; Time synchronizations; WiMAX systems; Acoustic intensity
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments / MOR / COE:Departments > Electrical & Electronic Engineering
ID Code:450
Deposited By: Assoc Prof Dr Nidal Kamel
Deposited On:09 Mar 2010 02:00
Last Modified:19 Jan 2017 08:26

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