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Systems and Methods for Transmitting Data Using Parallel Decode Capacity Optimized Symbol ConstellationsTransmitters are described that use non-uniformly spaced symbol constellations that have increased capacity compared to conventional constellations. In many embodiments, a transmitter includes a coder configured to receive bits and output encoded bits, a mapper configured to map said encoded bits to symbols in a non-uniform symbol constellation selected from a plurality of symbol constellations, and a modulator configured to generate a signal for transmission via the communication channel using symbols generated by the mapper. In a variety of embodiments, wherein the non-uniform symbol constellation comprises a set of non-uniformly spaced constellation points, and the location points in the non-uniform symbol constellation are chosen to optimize parallel decode capacity of the non-uniform symbol constellation subject to at least one optimization constraint. In many embodiments, the non-uniform symbol constellation is a quadrature amplitude modulation constellation or a phase shift keyed constellation.
Document ID
20190000763
Acquisition Source
Jet Propulsion Laboratory
Document Type
Other - Patent
Authors
Barsoum, Maged F.
Jones, Christopher R.
Date Acquired
February 14, 2019
Publication Date
December 4, 2018
Subject Category
Communications And Radar
Funding Number(s)
CONTRACT_GRANT: NAS7-03001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-10,149,179
Patent Application
US-Patent-Appl-SN-15/682,475
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