Data Centers

An Efficient Multiple Access Scheme for Voltage Control in Smart Grid Using WiMAX

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Executive Summary

An efficient WiMAX-based multiple access scheme for the state updating in voltage control is introduced. The scheme, called sample-contention scheme, addresses the problem of optimally bringing deviated voltage to a predefined reference level with minimum communication resources by taking advantage of the sparseness of voltage disturbance. An n-sample interval is defined, in which randomly selected voltage monitors broadcast their voltage states and help other unselected ones prioritize transmissions of voltage-state-report using the Maximum Likelihood Estimation (MLE). By analyzing the successful transmission in contention access interval (m-contend), a contention based multiple access is devised.

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