Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023882507> ?p ?o ?g. }
Showing items 1 to 60 of
60
with 100 items per page.
- W2023882507 endingPage "947" @default.
- W2023882507 startingPage "939" @default.
- W2023882507 abstract "IEEE 802.11n 무선 랜 표준의 채널 부호화 방법 중 하나인 LDPC(Low-Density Parity-Check) 부호는 오류정정 성능이 매우 우수하나 복호기 회로의 복잡도가 커서 복호성능과 하드웨어 복잡도 사이의 trade-off 관계를 고려한 설계가 중요하다. 본 논문에서는 최소합 알고리듬(Min-Sum Algorithm; MSA) 기반 LDPC 복호기에서 LLR(Log-Likelihood Ratio) 근사화가 복호성능에 미치는 영향을 분석하고, 이를 통해 LDPC 복호기의 최적 설계조건을 도출하였다. IEEE 802.11n 무선 랜 표준의 블록길이 1,944 비트, 부호화율 1/2의 LDPC 패리티 검사 행렬과 최소합 기반의 반복복호 알고리듬을 적용하여 LLR 근사화에 따른 비트오율(BER) 성능을 분석하였다. <TEX>$BER=10^{-3}$</TEX>에 대해 LLR 비트 폭 (6,4)와 (7,5)의 <TEX>$E_b/N_o$</TEX>는 0.62 dB의 차이를 보였으며, 최대 반복복호 횟수 6과 7에 대한 <TEX>$E_b/N_o$</TEX>의 차이는 약 0.3 dB로 나타났다. 시뮬레이션 결과로부터, LLR 근사화 비트 폭이 (7,5)이고 반복복호 횟수가 7인 경우에 가장 우수한 비트오율 성능을 나타내었다. The LDPC(Low-Density Parity-Check) code, which is one of the channel encoding methods in IEEE 802.11n wireless LAN standard, has superior error-correcting capabilities. Since the hardware complexity of LDPC decoder is high, it is very important to take into account the trade-offs between hardware complexity and decoding performance. In this paper, the effects of LLR(Log-Likelihood Ratio) approximation on the performance of MSA(Min-Sum Algorithm)-based LDPC decoder are analyzed, and some optimal design conditions are derived. The parity check matrix with block length of 1,944 bits and code rate of 1/2 in IEEE 802.11n WLAN standard is used. In the case of <TEX>$BER=10^{-3}$</TEX>, the <TEX>$E_b/N_o$</TEX> difference between LLR bit-widths (6,4) and (7,5) is 0.62 dB, and <TEX>$E_b/N_o$</TEX> difference for iteration cycles 6 and 7 is 0.3 dB. The simulation results show that optimal BER performance can be achieved by LLR bit-width of (7,5) and iteration cycle of 7." @default.
- W2023882507 created "2016-06-24" @default.
- W2023882507 creator A5057346076 @default.
- W2023882507 creator A5064560302 @default.
- W2023882507 creator A5074162481 @default.
- W2023882507 date "2010-04-30" @default.
- W2023882507 modified "2023-09-27" @default.
- W2023882507 title "An analysis of optimal design conditions of LDPC decoder for IEEE 802.11n Wireless LAN Standard" @default.
- W2023882507 cites W2123530431 @default.
- W2023882507 cites W2137813581 @default.
- W2023882507 cites W2139164285 @default.
- W2023882507 cites W2169732368 @default.
- W2023882507 cites W4256648168 @default.
- W2023882507 doi "https://doi.org/10.6109/jkiice.2010.14.4.939" @default.
- W2023882507 hasPublicationYear "2010" @default.
- W2023882507 type Work @default.
- W2023882507 sameAs 2023882507 @default.
- W2023882507 citedByCount "0" @default.
- W2023882507 crossrefType "journal-article" @default.
- W2023882507 hasAuthorship W2023882507A5057346076 @default.
- W2023882507 hasAuthorship W2023882507A5064560302 @default.
- W2023882507 hasAuthorship W2023882507A5074162481 @default.
- W2023882507 hasBestOaLocation W20238825071 @default.
- W2023882507 hasConcept C11413529 @default.
- W2023882507 hasConcept C185588885 @default.
- W2023882507 hasConcept C33923547 @default.
- W2023882507 hasConcept C41008148 @default.
- W2023882507 hasConcept C56296756 @default.
- W2023882507 hasConcept C57273362 @default.
- W2023882507 hasConcept C67692717 @default.
- W2023882507 hasConcept C95925971 @default.
- W2023882507 hasConceptScore W2023882507C11413529 @default.
- W2023882507 hasConceptScore W2023882507C185588885 @default.
- W2023882507 hasConceptScore W2023882507C33923547 @default.
- W2023882507 hasConceptScore W2023882507C41008148 @default.
- W2023882507 hasConceptScore W2023882507C56296756 @default.
- W2023882507 hasConceptScore W2023882507C57273362 @default.
- W2023882507 hasConceptScore W2023882507C67692717 @default.
- W2023882507 hasConceptScore W2023882507C95925971 @default.
- W2023882507 hasIssue "4" @default.
- W2023882507 hasLocation W20238825071 @default.
- W2023882507 hasOpenAccess W2023882507 @default.
- W2023882507 hasPrimaryLocation W20238825071 @default.
- W2023882507 hasRelatedWork W1545952418 @default.
- W2023882507 hasRelatedWork W1979851451 @default.
- W2023882507 hasRelatedWork W2010303399 @default.
- W2023882507 hasRelatedWork W2037969397 @default.
- W2023882507 hasRelatedWork W2084088975 @default.
- W2023882507 hasRelatedWork W2098849519 @default.
- W2023882507 hasRelatedWork W2519651411 @default.
- W2023882507 hasRelatedWork W3139565810 @default.
- W2023882507 hasRelatedWork W4311537295 @default.
- W2023882507 hasRelatedWork W577979151 @default.
- W2023882507 hasVolume "14" @default.
- W2023882507 isParatext "false" @default.
- W2023882507 isRetracted "false" @default.
- W2023882507 magId "2023882507" @default.
- W2023882507 workType "article" @default.