LDPC codes for interference channels in the primary decodes cognitive regime
Date
2019
Editor(s)
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Instructor
Source Title
IEEE Wireless Communications Letters
Print ISSN
2162-2337
Electronic ISSN
Publisher
Institute of Electrical and Electronics Engineers Inc.
Volume
8
Issue
4
Pages
1187 - 1190
Language
English
Type
Journal Title
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Abstract
We investigate cognitive interference channels (CICs), a variant of two-user ICs in which one of the transmitters (called the cognitive transmitter) has non-causal knowledge of the other's (private user's) message. Prompted by the information theoretical results, we design an explicit coding scheme for CIC in the primary decodes cognitive regime. We present a novel joint decoder and design low-density parity-check codes for this set-up. Simulation results demonstrate that the proposed joint decoder and the designed codes outperform the conventional maximum ratio combining type decoder and the point-to-point optimal codes, respectively.