Bookcover of A MB-PULSED-OFDM System using DWPT for UWB WPAN Environment
Booktitle:

A MB-PULSED-OFDM System using DWPT for UWB WPAN Environment

Ultrawideband Communication

LAP LAMBERT Academic Publishing (2012-11-04 )

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ISBN-13:

978-3-659-16361-6

ISBN-10:
3659163619
EAN:
9783659163616
Book language:
English
Blurb/Shorttext:
Multiband Orthogonal Frequency Division Multiplexing (MB-OFDM) approach using UWB signals with short duration of pulses provide unique advantages in short-range high data rate WPAN physical layer applications, which include easy penetration through obstacles, high precision ranging and low processing power. Non-pulsed MB-OFDM system suffers from the frequency selectivity of the fading channels. MB-pulsed-OFDM is used eliminate heavy error correction coding for dense multipath frequency selective channel model. The IFFT module in the pulsed-OFDM transmitter is much less complex than the IFFT module in the normal OFDM because MB-pulsed-OFDM uses 32 subcarriers while normal MB-OFDM uses 128 sub-carriers. Each subcarrier has large side-lobes, requiring careful filtering and sufficient guard interval bands in a traditional MB-OFDM UWB system. Again Fourier based MB-OFDM signals only overlap in frequency domain. To overcome these aforementioned problems associated with MB-OFDM UWB system, a finer and adjustable resolution of frequencies at high frequency is presented as wavelet basbased transform technique i.e. discrete wavelet packets transform (DWPT) instead of using FFT.jai jagannath
Publishing house:
LAP LAMBERT Academic Publishing
Website:
https://www.lap-publishing.com/
By (author) :
Choudhury Sasmita Das
Number of pages:
80
Published on:
2012-11-04
Stock:
Available
Category:
Technology
Price:
49.00 €
Keywords:
UWB, MB-OFDM, DWPT MB-OFDM, DWPT MB-pulsed-OFDM

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