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Rate-Compatible Codes Based on Punctured Polar Codes for Future Wireless Applications | |
项目编号 | http://gepris.dfg.de/gepris/projekt/412009386 |
Professorin Dr.-Ing. AnkeSchmeink | |
项目主持机构 | RWTH Aachen |
开始日期 | 2018 |
英文摘要 | Inthisproposal,wedesignconstructionsofrate-compatiblefamiliesofcodesbasedonpuncturingpolarcodes.Toovercomethelengthrestrictionsimposedbytheirstandardconstruction,weexplorethreenovelapproachesstrivingforoptimalsolutions,aswellasdevisingefficientheuristics.Facilitatingalow-complexityencoderanddecoderstructureisadesigngoalofparamountinterest,enablingcompetitiveperformanceinlatency-constrainedenvironments.Applicationsforthefamiliesofcodesconstructedinthisproposalarefoundinrelayscenarios,aswellashybridARQschemeswithincrementalredundancy(HARQ-IRschemes).Intheiroriginaldesign,possibleblocklengthsofpolarcodesarelimitedtointegerpowersofthedimensionunderlyingpolarizationkernel.Asaresult,itisnon-trivialtoadapttheirlengthsmoreflexibly.Onepromisingwaytodosoisgivenbypuncturing.Inordertoconstructrate-compatiblecodefamiliesbasedonpuncturingpolarcodes,thepuncturingpatternshavetosatisfycertainnestingconstraints,hencenecessitatingdevelopmentofmethodstoaccomodatefortheseadditionalconstraints.Asafirststep,ajointoptimizationstrategybasedonexploitingstructuralpropertiesofpuncturingpatternsisproposed,attemptingoptimalconstructionofpuncturedpolarcodesbyjointlyoptimizingtheindexsetandthepuncturingpattern.Furthermore,exploringefficientheurisitcsfortheconstructionofrate-compatiblecodefamiliesbasedonpuncturingpolarcodes,twonovelpuncturingapproachesareinvestigated,incorporatingtheaformentionedconstraintsofnestedpuncturingpatterns.Thefirstapproachisbasedonalgebraicdecompositionsofthepolarcodegeneratormatrix,whilethesecondadaptsthepromisingtechniqueofquasi-uniformpuncturing.Twointersectionaltaskshelptoadvancethesefindingsbyimprovingtheperformanceoftheresultingcodeconstructions.Thefirstaimsatenhancingerrorcorrectioncapabilitiesbyassistingdecodersviaadditionalconstraints,givenbydynamicfrozensymbols.Thesecondexploresatechniquetoimprovethequalityoftheindexsetselectionviaintegerlinearprogramming.Finally,webuildonourexistingresearchinthetheoryofrelayingsystems.Astheseresultsassumeperfectadaptibilityofcoderatesviaadaptingthelengthofthecodes,relayingscenariosprovideapplicationdomainsforrate-compatiblecodefamiliesofparamountinterest.Asasecondapplicationdomain,weexploretheperformanceoftherate-compatiblecodefamiliesdevelopedinHARQ-IRschemes. |
学科分类 | 1201 - 电子学与信息系统;12 - 信息科学 |
资助机构 | DE-DFG |
项目类型 | Research Grants |
国家 | DE |
语种 | 英语 |
文献类型 | 项目 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/69370 |
推荐引用方式 GB/T 7714 | Professorin Dr.-Ing. AnkeSchmeink.Rate-Compatible Codes Based on Punctured Polar Codes for Future Wireless Applications.2018. |
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