Method and system for providing low density parity check (LDPC) coding for scrambled coded multiple access (SCMA)

US20100122143A1Inactive Publication Date: 2010-05-13HUGHES NETWORK SYST
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
HUGHES NETWORK SYST
Publication Date
2010-05-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

A multiple access scheme is described. One or more encoders are configured to encode a plurality of bit streams using Low Density Parity Check (LDPC) coding. The bit streams correspond to a respective plurality of terminals. The plurality of bit streams are converted to provide a multiple access scheme for the terminals.
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Description

RELATED APPLICATIONS

[0001] This application is a continuation in part of U.S. patent application (Ser. No. 12 / 056,144) filed Mar. 26, 2008, entitled “Method and System for Providing Scrambled Coded Multiple Access (SCMA),” the entirety of which is incorporated herein by reference, which is related to, and claims the benefit of the earlier filing date under 35 U.S.C. §119(e) of, U.S. Provisional Patent Application (Ser. No. 60 / 908,340) filed Mar. 27, 2007 (Attorney Docket: 115426-1147), entitled “Efficient VSAT Transmission Using Low-Rate Turbo Codes and Scrambled Coded Multiple Access (SCMA) Techniques”; the entirety of which is incorporated herein by reference.BACKGROUND INFORMATION

[0002] Multiple access schemes are employed by modern radio systems to allow multiple users to share a limited amount of bandwidth, while maintaining acceptable system performance. Common multiple access schemes include Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), and Co...

Claims

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