Joint Source-Channel Polar-Coded Modulation
- Resource Type
- Conference
- Authors
- Wu, Bolin; Dai, Jincheng; Niu, Kai
- Source
- 2022 IEEE International Symposium on Information Theory (ISIT) Information Theory (ISIT), 2022 IEEE International Symposium on. :2356-2361 Jun, 2022
- Subject
- Communication, Networking and Broadcast Technologies
Spectral efficiency
Error analysis
Simulation
Redundancy
Modulation
Encoding
Decoding
- Language
- ISSN
- 2157-8117
In this paper, we investigate the joint design and optimization of source-channel polar coding with 2 m -ary transmission. A joint framework is proposed which includes a source polar code to compress the redundant source, followed by a set of component polar codes over a 2 m -ary modulation to protect the source against errors and achieve increased spectral efficiency. We prove that our scheme suffices to achieve the theoretical limit of source-channel separation theorem. For finite-length cases, a joint decoder that exploits both the residual redundancy and channel characteristics is also derived to further reduce the error rate. Simulation results verify the effectiveness of the scheme.