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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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Page Link: advantages and dis advantages with magneto rheological suspension -
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Title: advantages and dis advantages of walking stick with heart attack detection
Page Link: advantages and dis advantages of walking stick with heart attack detection -
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Title: OFDM on Mobile Data Communication
Page Link: OFDM on Mobile Data Communication -
Posted By: shibin.sree
Created at: Monday 28th of December 2009 09:43:18 PM
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ABSTRACT
OFDM (Orthogonal Frequency Division Multiplexing) is a modulation and multiple access technique that has been explored for over 20 years. Only recently has it been finding its way into commercial communications systems. OFDM, or multitone modulation, is presently used in a number of commercial wired and wireless applications. In order for any mobile system to create a rich user experience, it must provide ubiquitous, fast and user-friendly connectivity. OFDM has several unique properties that make it especially well suited to handle ....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: High Speed OFDM Packet Access
Page Link: High Speed OFDM Packet Access -
Posted By: Computer Science Clay
Created at: Sunday 01st of March 2009 04:41:29 PM
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High Speed OFDM Packet Access
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.
· T ....etc
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Title: ofdm
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Posted By: varunknp
Created at: Thursday 07th of January 2010 06:35:54 PM
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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: 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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