System and method for preamble detection in MIMO narrowband power line communications
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United States of America Patent
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Aug 16, 2016
Grant Date -
Mar 31, 2016
app pub date -
Dec 29, 2014
filing date -
Sep 30, 2014
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Abstract
A PLC network system and method operative with OFDM for generating MIMO frames with suitable preamble portions configured to provide backward compatibility with legacy PLC devices and facilitate different receiver tasks such as frame detection and symbol timing, channel estimation and automatic gain control (AGC), including robust preamble detection in the presence of impulsive noise and frequency-selective channels of the PLC network. A PLC device may include a delayed correlation detector and a cross-correlation detector operating in concert to facilitate preamble detection in one implementation.
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