A ROAD TO FUTURE BROADBAND WIRELESS ACCESS: MIMO-OFDM-BASED AIR INTERFACE

SUBMITTED BY:
S.DINESH
IIrd 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-inpu ....etc

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Abstract
Improved space time coding for multiple-input and multiple-output orthogonal frequency division multiplexing is studied for wireless systems using QPSK modulation for four transmit and four receive antennas. A 256-state code is shown to perform within 3 dB of outage capacity (and within 2 dB with perfect channel estimation), which is better than any other published result without using iterative decoding. ....etc

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dear sir , i am studing BE in kongu engineering college .i have to do the prjct on DWT based MIMO-OFDM to improve the bit error rate .i want to know the steps .pls give some steps and matlab code for mimo ofdm. ....etc

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The MIMO-OFDM System in the 4G Mobile Communication
Presented by
Deepak Narayanan.K
Roll no-17
S7 AE&I
College Of Engineering, Trivandrum
2007-11 batch



Previous Technology 1G First Generation
Analog
Simplest type to wireless data
Average between 4,800 to 9,600 bps (bits per second)

2G
Digital

Digital data can be compressed and multiplexed much more effectively than analog voice encodings

Multiplexing -multiple analog message signals or d ....etc

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Dear Sir,
Can you please provide the code for An improved dft based channel estimation algorithm for mimo ofdm systems, as i have the code but the execution results are not related with the abstract results.
thanks in advance. ....etc

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literature review to remove near far problem in MIMO OFDMA with power allocation algorithms ....etc

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Abstract

In this paper we consider the variation of eigenvalues and eigenvalue sums across the frequency bins of a MIMO OFDM system. In particular, we consider the changes in the ordered eigenvalues and the eigenvalue sum or page link gain, between two distinct frequency bins. The size of such changes has an important effect both on system performance and design. In addition these results have applications in other areas, including temporal variation, feedback delay and channel estimation. Novel results presented include distribution ....etc

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To get full information or details of mimo ofdm channel estimation using pilot carriers please have a look on the pages

http://seminarsprojects.net/Thread-mimo-ofdm-based-air-interface-full-report?pid=17760&mode=threaded

if you again feel trouble on mimo ofdm channel estimation using pilot carriers please reply in that page and ask specific fields in mimo ofdm channel estimation using pilot carriers ....etc

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i need mat lab code for an improved dft based channel estimation algorithm for mimo ofdm systems
sent me the mat lab code for an improved dft based channel estimation algorithm for mimo ofdm systems ....etc

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MIMO RADAR SIGNAL PROCESSING:MIMO as a Distributed Radar System
ABSTRACT:

Multiple-input multiple-output (MIMO) radar has been receiving increasing attention in recent years from researchers, practitioners, and funding agencies. MIMO radar is characterized by using multiple antennas to simultaneously transmit diverse (possibly linearly independent) waveforms and by utilizing multiple antennas to receive the reflected signals. Like MIMO communications, MIMO radar offers a new paradigm for signal processing research. MIMO radar possesses sig ....etc

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