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MMSE Estimation and Analysis of Maximum Harvested Energy in Green Cooperative Wireless System with Multiple Relays
Parameter estimation is an important problem in practical wireless systems. In this paper, I address the problem of estimating the maximum energy harvested among multiple energy harvesting (EH) relays in a double-hop EH-relay-assisted cooperative wireless system. In the system considered, multiple E...
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Format: | Conference Proceeding |
Language: | English |
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Online Access: | Request full text |
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Summary: | Parameter estimation is an important problem in practical wireless systems. In this paper, I address the problem of estimating the maximum energy harvested among multiple energy harvesting (EH) relays in a double-hop EH-relay-assisted cooperative wireless system. In the system considered, multiple EH relays harvest energy from radio frequency (RF) signals they receive from the RF source over Rayleigh fading channels. I formally state the maximum harvested energy estimation problem in the presence of additive white noise. I derive analytical expressions for the exact minimum mean squared error (MMSE) estimator and MMSE. Further, I obtain an expression for the number of measurements for a special scenario where MMSE and Cramer-Rao lower bound (CRLB) are equal. The analysis is useful for further investigating order statistics of harvested energies and application in green cooperative Internet of Things-enabled wireless systems. |
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ISSN: | 2153-1684 |
DOI: | 10.1109/ANTS56424.2022.10227722 |