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66819

Enhancement of Matched filter BER performance in DS-UWB systems using a new channel estimation technique

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Last updated: 25 Dec 2024

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Abstract

One of the major challenges in ultra wideband (UWB) receivers is to recover the signal energy dispersed over too many multi path components, while preserving the receiver complexity as low as possible. To this achieve this, channel estimators based receivers are employed to enhance its Bit Error Rate (BER) performance. In this paper the problem of channel estimation for Direct Sequence ultra wideband (DS UWB) is investigated. Firstly, a modification of the received signal model is introduced. A new channel estimation algorithm is proposed .The proposed algorithm is cost effective, very simple and is independent of the number of paths of the UWB channel. Monte-Carlo simulation is used to calculate the Mean Square Error (MSE) of the proposed estimator by averaging the estimation error of a 1000 generated channel realizations for each of the four different IEEE 802.15.3a UWB channel models. The Mean Squared Error (MSE) of the proposed estimator is compared with that of the time domain Maximum Likelihood (ML) estimator. Simulation results show that The MSE performance of the proposed estimator is competitive to that of the ML even in the case of non perfect orthogonal spreading codes and approaches the behavior of the ML as the length of the spreading code increases.

DOI

10.21608/mjeer.2011.66819

Keywords

DS UWB, Rake receiver, mono cycle

Authors

First Name

Mohamed Salah

Last Name

elDin

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Affiliation

Dept. of Communications Eng., Higher Institute of Engineering, Al Shorouk Academy

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First Name

M. M.

Last Name

Zahra

MiddleName

-

Affiliation

Dept. of Electrical Engineering, Faculty of Engineering, Al Azhar University

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First Name

Shawky

Last Name

Abdel Fattah

MiddleName

-

Affiliation

Dept. of Electrical Engineering, Faculty of Engineering, Al Azhar University

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Volume

21

Article Issue

2

Related Issue

9621

Issue Date

2011-06-01

Receive Date

2011-06-07

Publish Date

2011-06-01

Page Start

147

Page End

166

Print ISSN

1687-1189

Online ISSN

2682-3535

Link

https://mjeer.journals.ekb.eg/article_66819.html

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https://mjeer.journals.ekb.eg/service?article_code=66819

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4

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Original Article

Type Code

1,088

Publication Type

Journal

Publication Title

Menoufia Journal of Electronic Engineering Research

Publication Link

https://mjeer.journals.ekb.eg/

MainTitle

Enhancement of Matched filter BER performance in DS-UWB systems using a new channel estimation technique

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Article

Created At

22 Jan 2023