| Presentation | 2023-08-03 Polarization Analysis for Joint Source-Channel Coding with Side Information Yuki Nagai, Hideki Yagi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The polar codes, introduced by Ar?kan, use a technique called channel polarization and can achieve the capacity of a given memoryless channel with low computational and spatial complexity. Polar codes for source coding can also achieve the theoretical limit of performance with source polarization. Joint source and channel coding is expected to better performance than separate source and channel coding. Indeed, joint source-channel coding based on systematic polar codes can achieve the theoretical limit for the system in which the decoder can access side information of source messages if the positions of information bits are aligned in desired locations. The operation of allocating systematic bits to desired positions, called bit-swap, has been proposed. The decoding algorithm, however, becomes complex as the number of swapped bit pairs increases. In this paper, we analyze polarization after bit-swap operation to further elucidate codes' overall performance and simplify the decoding algorithm. To this end, we make clear how bit-swap operation affects polarization of the other bits. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | polar codes / systematic polar codes / joint source-channel coding / polarization |
| Paper # | IT2023-15 |
| Date of Issue | 2023-07-27 (IT) |
| Conference Information | |
| Committee | IT |
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| Conference Date | 2023/8/3(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Shonan Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Freshman session, General |
| Chair | Tetsuya Kojima(Tokyo Kosen) |
| Vice Chair | Yasuyuki Nogami(Okayama Univ.) |
| Secretary | Yasuyuki Nogami(Waseda Univ.) |
| Assistant | Tetsunao Matsuta(Saitamai Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Information Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Polarization Analysis for Joint Source-Channel Coding with Side Information |
| Sub Title (in English) | |
| Keyword(1) | polar codes |
| Keyword(2) | systematic polar codes |
| Keyword(3) | joint source-channel coding |
| Keyword(4) | polarization |
| 1st Author's Name | Yuki Nagai |
| 1st Author's Affiliation | The University of Electro-Communications(UEC) |
| 2nd Author's Name | Hideki Yagi |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC) |
| Date | 2023-08-03 |
| Paper # | IT2023-15 |
| Volume (vol) | vol.123 |
| Number (no) | IT-149 |
| Page | pp.pp.7-12(IT), |
| #Pages | 6 |
| Date of Issue | 2023-07-27 (IT) |