Near-capacity iterative detection of co-channel interference for a high-efficiency multibeam satellite system
AssigneeHughes Network Systems, LLC
InventorsBassel F. Beidas, Rohit Iyer Seshadri
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Abstract
A communications apparatus to receive a composite signal including a desired signal and interferer signals, where the desired signal may include desired symbols and the interferer signals may include interferer symbols. The system may include N frameworks, each framework may include a detector to partition the desired symbols and the interferer symbols based on an interference severity into a dominant group and a non-dominant group, and to generate A Posteriori Probabilities (APP) of the desired symbols and the interferer symbols. The detector of each of the N frameworks generates the APP based on a feedback of a priori probabilities from each of the N frameworks.
Claims20
A communications apparatus comprising:
- a composite signal comprising a desired signal and interferer signals, wherein the desired signal comprises desired symbols and the interferer signals comprise interferer symbols;
- and
- N frameworks, each framework comprising
- a detector to partition the desired symbols and the interferer symbols based on an interference severity into a dominant group and a non-dominant group, and to generate A Posteriori Probabilities (APP) of the desired symbols and the interferer symbols,
- wherein the detector of each of the N frameworks generates the APP based on a feedback of a priori probabilities from each of the N frameworks.
A computer implemented method comprising:
- providing a composite signal comprising a desired signal and interferer signals, wherein the desired signal comprises desired symbols and the interferer signals comprise interferer symbols;
- and
- iteratively computing, N frameworks, each framework comprising
- partitioning the desired symbols and the interferer symbols based on an interference severity into a dominant group and a non-dominant group, and
- generating A Posteriori Probabilities (APP) of the desired symbols and the interferer symbols,
- wherein the detector of each of the N frameworks generates the APP based on a feedback of a priori probabilities from each of the N frameworks.
Dependencies are inferred from the claim text.