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公开(公告)号：US20210255836A1
公开(公告)日：2021-08-19
申请号：US17155001
申请日：2021-01-21
Applicant: California Institute of Technology
Inventor： Shuqing Chen , Michelle Effros , Victoria Kostina
IPC: G06F8/30
Abstract: Systems and methods in accordance with various embodiments of the invention perform lossless source coding. In several embodiments, a nested code structure is utilized to perform Random Access Source Coding (RASC), where the number of active encoders is initially unknown. In several embodiments, the decoder can attempt to decode using a number of Slepian-Wolf decoders corresponding to an estimated number of sources. One embodiment includes multiple source encoders configured to receive a start message and transmit a portion of a codeword selected by encoding data from a source until an end of epoch message is received. A source decoder can transmit at least one start message, and receive codeword portions transmitted by the plurality of source encoders. When a decoding rule is satisfied, the source decoder can decode data from multiple source encoders based upon received codeword portions, and cause the broadcast transmitter to transmit an end of epoch message.
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公开(公告)号：US11822902B2
公开(公告)日：2023-11-21
申请号：US17155001
申请日：2021-01-21
Applicant: California Institute of Technology
Inventor： Shuqing Chen , Michelle Effros , Victoria Kostina
Abstract: Systems and methods in accordance with various embodiments of the invention perform lossless source coding. Nested code structures are utilized to perform Random Access Source Coding (RASC), where the number of active encoders is initially unknown. Decoders can attempt to source decode using a number of Slepian-Wolf decoders corresponding to an estimated number of sources. Multiple source encoders are configured to receive start messages and transmit portions of codewords, selected by source encoding data from sources to remove redundancy, until an end of epoch message is received.
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