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Title: Studies on DWT-OFDM and FFT-OFDM Systems
Page Link: Studies on DWT-OFDM and FFT-OFDM Systems -
Posted By: seminar surveyer
Created at: Friday 15th of October 2010 02:44:15 PM
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Prepared by:
Khaizuran Abdullah
Zahir M. Hussain


Abstract

Comparative studies on DWT-OFDM and FFTOFDM systems are presented. The model for DWT-OFDM includes zero-padding and vector transpose for transmitting the OFDM signal. MATLAB simulation commands are also described. The discrete wavelet transform-OFDM (DWT-OFDM) has to satisfy the orthonormal bases and the perfect reconstruction properties to be considered as wavelet transform. Different wavelet families have been used and compared with the conventional ....etc

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Title: download ofdm seminars report
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Title: MIMO-OFDM-BASED AIR INTERFACE full report
Page Link: MIMO-OFDM-BASED AIR INTERFACE full report -
Posted By: computer science topics
Created at: Monday 07th of June 2010 10:57:31 PM
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A ROAD TO FUTURE BROADBAND WIRELESS ACCESS: MIMO-OFDM-BASED AIR INTERFACE

SUBMITTED BY:
S.DINESH
IIIrd YEAR
R.ASHOK KUMAR




ABSTRACT :

Orthogonal frequency-division multiplexing is a popular method for high-data-rate wireless transmission. OFDM may be combined with multiple antennas at both the access point and mobile terminal to increase diversity gain and/or enhance system capacity on a time-varying multipath fading channel, resulting in a multiple-inp ....etc

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Title: WIDEBAND OFDM
Page Link: WIDEBAND OFDM -
Posted By: computer science crazy
Created at: Monday 22nd of September 2008 02:13:47 AM
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Orthogonal frequency Division Multiplexing (OFDM) is multicarrier transmission technique. OFDM is a communication technique that divides the communication channel into a number of equally spaced frequency bands. A sub carriers a portion of the users information in each band. Each sub carriers is orthogonal (Independent of each other) with every other sub carrier. OFDM efficiently squeezes multiple modulated carriers tightly together reducing the required bandwidth.OFDM was invested in 1960?s, only recently it has recognized as an excellent meth ....etc

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Title: Simulation of OFDM and Bandwidth efficient Wireless OFDM
Page Link: Simulation of OFDM and Bandwidth efficient Wireless OFDM -
Posted By: seminar surveyer
Created at: Wednesday 29th of December 2010 02:57:19 PM
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By
JOSHI G




Abstract

The demand for high-speed mobile wireless communications is rapidly growing.
OFDM technology promises to be a key technique for achieving the high data capacity and spectral efficiency requirements for wireless communication systems of the near future. This work presents an investigation into methods for maximizing the spectral efficiency of Orthogonal Frequency Division Multiplexing (OFDM) systems. The current standards such as IEEE 802.11a in USA and ....etc

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Title: Channel Tracking in Wireless OFDM Systems full report
Page Link: Channel Tracking in Wireless OFDM Systems full report -
Posted By: seminar topics
Created at: Wednesday 31st of March 2010 02:55:02 PM
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Abstract”
In the presented paper, the principle of frequency domain channel estimation for wireless OFDM systems will be shown. A well known noise reduction technique will be adapted to HIPERLAN/2 and IEEE802.11a standards, and its positive effects will be demonstrated by simulation results. Channel tracking has not been considered by the WLAN standards named above, although it is well known that time-variant indoor radio channels can change their characteristics within one PHY burst. This paper presents some techniques for decision ....etc

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Title: seminar report on ofdm
Page Link: seminar report on ofdm -
Posted By: maestro19
Created at: Thursday 08th of November 2012 01:35:31 AM
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Title: wideband ofdm full report
Page Link: wideband ofdm full report -
Posted By: computer science technology
Created at: Friday 22nd of January 2010 09:02:26 PM
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ABSTRACT
Orthogonal frequency Division Multiplexing (OFDM) is
multicarrier transmission technique. OFDM is a communication technique
that divides the communication channel into a number of equally spaced
frequency bands. A sub carriers a portion of the users information in
each band. Each sub carriers is orthogonal (Independent of each other)
with every other sub carrier. OFDM efficiently squeezes multiple
modulated carriers tightly together reducing the required bandwidth.
OFDM was invested in 1960â„ ....etc

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Title: High Speed OFDM Packet Access HSOPA
Page Link: High Speed OFDM Packet Access HSOPA -
Posted By: computer science crazy
Created at: Tuesday 24th of February 2009 04:03:39 AM
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High Speed OFDM Packet Access (HSOPA) also called as super 3G can be said as the successor of HSDPA and HSUPA technologies specified in 3GPP releases 5 and 6. This expected fraction of 3GPP s Long Term Evolution (LTE) upgrade path for UMTS systems has given a totally different air interface system with that of the W-CDMA. The characteristics of HSOPA includes -: · Utilizes 1.25 MHz to 20 MHz bandwidth compared with the 5MHz usage of W-CDMA. · The upload and downlink transfer rates is 50 Mbps and 100Mbps and has a spectral effici ....etc

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Title: OFDM full report
Page Link: OFDM full report -
Posted By: smart paper boy
Created at: Saturday 18th of June 2011 02:05:54 PM
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ABSTRACT
OFDM (orthogonal frequency-division multiplexing) is one of the key digital communication technologies of the current decade. The first part of this paper presents the fundamentals of OFDM and its benefits in the presence of multipath propagation in a tutorial-like fashion. The second part details on some of the most important aspects of OFDM transceiver implementation: concept of receiver channel filtering and A/D conversion, radio impairment compensation (I/Q mismatch), and OFDM demodulator (FFT) design.
....etc

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