A novel front-end noise power and snr estimation using wavelet-packets in OFDM systems

Manzoor, R.S. and Jeoti, V. and Kamel, N. and Asif, M. (2008) A novel front-end noise power and snr estimation using wavelet-packets in OFDM systems. In: UNSPECIFIED.

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

In this paper, a noise power 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 takes into consideration the different noise power levels over the OFDM sub-carriers. The OFDM band is divided into several sub-bands using wavelet packet and noise in each sub-band is considered white. The second-order statistics of the transmitted OFDM preamble are calculated in each sub-band and the noise power is estimated. The proposed estimator is compared with Reddy's estimator for colored noise in terms of mean squared error (MSE).

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: cited By 0; Conference of International Conference on Wireless Information Networks and Systems, WINSYS 2008 ; Conference Date: 26 July 2008 Through 29 July 2008; Conference Code:74935
Uncontrolled Keywords: Acoustic intensity; Adaptive modulation; Computer networks; Delta modulation; Frequency allocation; Frequency division multiplexing; Information services; Mean square error; Modulation; Orthogonal frequency division multiplexing; Signal to noise ratio; Telecommunication systems, Colored noises; Noise power estimation; OFDM; OFDM systems; Second-order statistics; SNR; SNR estimations; Squared errors; Wavelet packets, Wireless networks
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 15:16
Last Modified: 09 Nov 2023 15:16
URI: https://khub.utp.edu.my/scholars/id/eprint/417

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