Network coding method and system through consideration of channel state difference of receivers
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United States of America Patent
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Nov 13, 2012
Grant Date -
Jul 28, 2011
app pub date -
Feb 19, 2010
filing date -
Jan 28, 2010
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a network coding method and system for receivers having a different channel state that may demodulate and extract a single coded packet using a different demodulation scheme according to a channel state of each receiver. The disclosed network coding method may use a different demodulation scheme to be suitable for a channel state of each receiver by applying a packet encoding scheme combined with a modulation scheme. When two receivers receive a network coded packet, a receiver having a poor channel state may receive a relatively small amount of information from the single packet compared to the other receiver having a relatively excellent channel state, but may enhance the reliability of packet reception. The other receiver having the relatively excellent channel state may decrease the reliability of packet reception, but may receive a relatively large amount of information.
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