University of California

King Fahd University of Petroleum and Minerals

Mansour A Aldajani

Ali H Sayed

The facilities optimization method utilizes Coulomb's law to model placement of facilities relative to a population using the facilities. The natural phenomenon of electrical charge attraction and repulsion can be used to model a wide variety of facility layout and planning problems. The physical phenomenon of charge interaction is simulated and used to effectively find a solution for a facilities supply-demand problem. Utilizing the charge model, problem solutions are naturally reached and are self-adjusting in response to parameter changes in the problem. A methodology for static, dynamic, elastic or inelastic demand is provided. The charge simulation approach supports any distance metric. The method always provides a solution regardless of the initial conditions used. The method provides high flexibility in choosing arbitrary demand and supply patterns.

Facilities optimization method

The present invention provides a method for predicting channel power fading in a wireless communications system. This prediction method estimates the channel power fading via oversampling of the received and transmitted powers. The prediction method is then combined with several proposed structures for closed loop power control. The resulting structures result in improved performance in wireless communications systems.

Reducing power control errors in wireless communication system

An adaptive multi-bit delta and sigma-delta modulation and demodulation technique, wherein a one-bit modulator generates a binary output signal from an analog input signal and a multi-bit adapter for generating a scaling signal for scaling a step-size of the sigma-delta modulator.

Adaptive multi-bit delta and sigma-delta modulation

An adaptive sigma-delta modulation and demodulation technique, wherein a quantizer step-size is adapted based on estimates of an input signal to the quantizer, rather than on estimates of an input signal to the modulator.

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Dhahran, Saudi Arabia

Mansour A Aldajani