Design of Low Complexity OFDM Schemes and Position Location Algorithm for Wireless Systems

Design of Low Complexity OFDM Schemes and Position Location Algorithm for Wireless Systems

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Finally, we propose an enhanced directional beacon based position locator for UWB systems. We perform detailed mathematical analysis that quantifies the dependence of the algorithm on the variance of noise and the beam pattern. We evaluate the effect of beampattern on the accuracy of position estimate and use Dolph-Chebyshev method to design an optimal beampattern. We also implement the position location algorithm using software radio and directional antenna equipped with stepper motor. We use advanced signal processing algorithms to overcome the shortcomings of low-cost hardware. We demonstrate the ability to obtain mobile node position estimates with sub-meter accuracy by transmitting a narrowband signal of 1 KHz bandwidth in the 2.4 GHz band.Now, the block diagonal structure of BfD^psa#39; can help decouple the original TV- dimensional ML problem of (3.26) into Q ... argmin||ui-HjBips)bi||2 for i = l, --, Q. ( 3.70) Remark 6 The proposed decoupling algorithm can reduce the complexity of aanbsp;...


Title:Design of Low Complexity OFDM Schemes and Position Location Algorithm for Wireless Systems
Author:Syed Faisal Ali Shah
Publisher:ProQuest - 2008
ISBN-13:

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