講演抄録/キーワード |
講演名 |
2015-09-04 09:50
Write-Once Memory Codes for the AMAC with Efficient Threshold Decoding ○Erick Christian Garcia Alvarez・Ryota Sekiya・Brian Michael Kurkoski(JAIST) IT2015-36 |
抄録 |
(和) |
Write-once memories (WOM) codes applied to the discrete memoryless asymmetric multiple access channel (AMAC) provides complexity reduction at the decoder. Comparing with joint iterative decoding, the proposed method confers system benefits such as independent decoding for each user, avoiding increases in decoding latency, and benefits for systems that are computationally constrained. The research is divided in two main parts; I) The theoretical part: any achievable rate pair for a two-write WOM code is an achievable rate pair for the two-user AMAC channel. WOM codes can achieve the AMAC sum-rate capacity, at one specific rate pair, but are suboptimal in general. II) The finite-length part: we consider finite-length WOM codes in order to establish performance under a posteriori probability decoding. |
(英) |
Write-once memories (WOM) codes applied to the discrete memoryless asymmetric multiple access channel (AMAC) provides complexity reduction at the decoder. Comparing with joint iterative decoding, the proposed method confers system benefits such as independent decoding for each user, avoiding increases in decoding latency, and benefits for systems that are computationally constrained. The research is divided in two main parts; I) The theoretical part: any achievable rate pair for a two-write WOM code is an achievable rate pair for the two-user AMAC channel. WOM codes can achieve the AMAC sum-rate capacity, at one specific rate pair, but are suboptimal in general. II) The finite-length part: we consider finite-length WOM codes in order to establish performance under a posteriori probability decoding. |
キーワード |
(和) |
Asymmetric MAC / WOM code / achievable rate region / posteriori probability / / / / |
(英) |
Asymmetric MAC / WOM code / achievable rate region / posteriori probability / / / / |
文献情報 |
信学技報, vol. 115, no. 214, IT2015-36, pp. 13-18, 2015年9月. |
資料番号 |
IT2015-36 |
発行日 |
2015-08-28 (IT) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
IT2015-36 |