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 met ....etc

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To get full information or details of Adaptive modulation Performance of wideband OFDM communications please have a look on the pages

http://seminarsprojects.net/Thread-wideband-ofdm?pid=460&mode=threaded

http://seminarsprojects.net/Thread-wideband-ofdm-full-report?pid=51435&mode=threaded

http://seminarsprojects.net/Thread-orthogonal-frequency-division-multiplexing-full-report

http://seminarsprojects.net/Thread-wideband-ofdm-full-report

if you again feel trouble on Adaptive modulation Performance of wideband OFDM communications please re ....etc

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Topic: fuzzy based call admission control in wideband cdma cellular networks

ABSTRACT
In this paper, a novel call admission control (CAC) scheme using fuzzy logic is proposed for the reverse page link transmission in wideband code division multiple access (CDMA) cellular communications. The fuzzy CAC scheme first estimates the effective bandwidths of the call request from a mobile station (MS) and its mobility information, and then makes a decision to accept or reject the connection request based on ....etc

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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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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 F ....etc

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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 IEE 802.11a in USA and H ....etc

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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 1960 s, ....etc

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Super wideband fractal antenna design

Abolfazl Azari
Member of Young Researchers Club
Isalmic Azad University of Gonabad
IRAN



Abstract

Fractals have very unique properties, therefore
in recent years, antenna designers use fractal geometry in
multi-band and broad-band antennas designing.
In this paper, I have achieved to a 40GHz super
wideband antenna with applying a fractal geometry to a
wire square loop antenna and choosing appropriate size
and location for feeding. Modelling and ....etc

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please read http://seminarsprojects.net/Thread-ofdm-on-mobile-data-communication for getting WIDEBAND OFDM seminar information ....etc

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