Mismatched multi-letter successive decoding for the multiple-access channel
This paper studies channel coding for the discrete memoryless multiple-access channel with a given (possibly suboptimal) decoding rule. A multi-letter successive decoding rule depending on an arbitrary non-negative decoding metric is considered, and achievable rate regions and error exponents are de...
| Autores: | ; ; |
|---|---|
| Tipo de documento: | Artigo |
| Estado: | Accepted version |
| Data de publicação: | 2018 |
| País: | España |
| Recursos: | Universitat Pompeu Fabra |
| Repositório: | Repositorio Digital de la UPF |
| OAI Identifier: | oai:repositori.upf.edu:10230/47999 |
| Acesso em linha: | http://hdl.handle.net/10230/47999 http://dx.doi.org/10.1109/TIT.2017.2781363 |
| Nível de acesso: | Acesso aberto |
| Palavra-chave: | Mismatched decoding Multiple-access channel Successive decoding Channel capacity Error exponents |
| _version_ | 1878740116210450432 |
|---|---|
| author | Scarlett, Jonathan |
| author2 | Martínez, Alfonso, 1973- Guillén i Fábregas, A. (Albert) |
| author2_role | author author |
| author_browse | Guillén i Fábregas, A. (Albert) Martínez, Alfonso, 1973- Scarlett, Jonathan |
| author_facet | Scarlett, Jonathan Martínez, Alfonso, 1973- Guillén i Fábregas, A. (Albert) |
| author_role | author |
| collection | Repositorio Digital de la UPF |
| description | This paper studies channel coding for the discrete memoryless multiple-access channel with a given (possibly suboptimal) decoding rule. A multi-letter successive decoding rule depending on an arbitrary non-negative decoding metric is considered, and achievable rate regions and error exponents are derived both for the standard MAC (independent codebooks), and for the cognitive MAC (one user knows both messages) with superposition coding. In the cognitive case, the rate region and error exponent are shown to be tight with respect to the ensemble average. The rate regions are compared with those of the commonly considered decoder that chooses the message pair maximizing the decoding metric, and numerical examples are given for which successive decoding yields a strictly higher sum rate for a given pair of input distributions. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_cda8b23cf0bf98d4384117533e8fdd9c |
| institution | Universitat Pompeu Fabra |
| instname_str | Universitat Pompeu Fabra |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:repositori.upf.edu:10230/47999 |
| publishDate | 2018 |
| publishDateSort | 2018 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| publisherStr | Institute of Electrical and Electronics Engineers (IEEE) |
| reponame_str | Repositorio Digital de la UPF |
| spelling | Mismatched multi-letter successive decoding for the multiple-access channel Scarlett, Jonathan Martínez, Alfonso, 1973- Guillén i Fábregas, A. (Albert) Mismatched decoding Multiple-access channel Successive decoding Channel capacity Error exponents This paper studies channel coding for the discrete memoryless multiple-access channel with a given (possibly suboptimal) decoding rule. A multi-letter successive decoding rule depending on an arbitrary non-negative decoding metric is considered, and achievable rate regions and error exponents are derived both for the standard MAC (independent codebooks), and for the cognitive MAC (one user knows both messages) with superposition coding. In the cognitive case, the rate region and error exponent are shown to be tight with respect to the ensemble average. The rate regions are compared with those of the commonly considered decoder that chooses the message pair maximizing the decoding metric, and numerical examples are given for which successive decoding yields a strictly higher sum rate for a given pair of input distributions. This work was supported in part by the European Research Council through ERC under Grant 259663 and Grant 725411, in part by the European Union’s 7th Framework Programme under Grant 303633, and in part by the Spanish Ministry of Economy and Competitiveness under Grant RYC-2011-08150, Grant TEC2012-38800-C03-03, and Grant TEC2016-78434-C3-1-R Institute of Electrical and Electronics Engineers (IEEE) http://hdl.handle.net/10230/47999 http://dx.doi.org/10.1109/TIT.2017.2781363 |
| spellingShingle | Mismatched multi-letter successive decoding for the multiple-access channel Scarlett, Jonathan Mismatched decoding Multiple-access channel Successive decoding Channel capacity Error exponents |
| status_str | acceptedVersion |
| title | Mismatched multi-letter successive decoding for the multiple-access channel |
| title_full | Mismatched multi-letter successive decoding for the multiple-access channel |
| title_fullStr | Mismatched multi-letter successive decoding for the multiple-access channel |
| title_full_unstemmed | Mismatched multi-letter successive decoding for the multiple-access channel |
| title_short | Mismatched multi-letter successive decoding for the multiple-access channel |
| title_sort | Mismatched multi-letter successive decoding for the multiple-access channel |
| topic | Mismatched decoding Multiple-access channel Successive decoding Channel capacity Error exponents |
| topic_facet | Mismatched decoding Multiple-access channel Successive decoding Channel capacity Error exponents |
| url | http://hdl.handle.net/10230/47999 http://dx.doi.org/10.1109/TIT.2017.2781363 |