简介：Thispaperanalyzesthelock/capturebehaviorofconstantmodulusapproach(CMA)forblindmultiuserdetection.ConditionsunderwhichCMAlocksonthedesiredsignalandwhenitcapturestheinterfererarederived.

简介：为在期望的多搬运人信号隐藏的干扰，这份报纸建议新奇察觉和识别算法。算法不能仅仅由高顺序的cumulant检测单个搬运人的干扰(SCI)，而且基于光谱特性发现多搬运人信号。而且，算法能区分SCI的调整类型。算法不取决于任何优先的知识并且帮助数据，它对实际应用慈悲。分析和模拟结果证明建议算法是有效的。

简介：Electronictransactionthroughe-paymentprotocolwillgrowtremendousinthecomingyears.Inthisarticle,byconverselyusingblindsignature,theauthorsproposeafairelectronicpaymentschemeforelectroniccommerce,whichcanensuretwoparticipants’rightsimultaneouslyinelectronictransactionprocess.Thisschemeisdifferentfromotherexistingschemesanditdoesnotrequirestrongtrustrelationbetweencustomerandmerchant.Inthescheme,asemi-trustedthirdparty(S-TTP)isinvolvedtoprovideafaircommerceenvironment.TheS-TTPtakespartintheprotocolon-lineandnosecureinformationaboutthebusinessisleaked.Moreover,theparticipantsdonotneedtoregistertoS-TTP.Thisschemedoesnotrequireinterventionofathirdpartyincaseofdispute,ifoneusercheatsorsimplycrashes.

简介：Aimingtotheestimationofsourcenumbers,mixingmatrixandseparationofmixingsignalsunderunderdeterminedcase,thearticleputsforwardamethodofunderdeterminedblindsourceseparation(UBSS)withanapplicationinultra-wideband(UWB)communicationsignals.ThemethodisbasedonthesparsecharacteristicofUWBcommunicationsignalsinthetimedomain.Firstly,findingthesinglesourceareabycalculatingtheratioofobservedsamplingpoints.Thenanalgorithmcalledhough-windowedmethodwasintroducedtoestimatethenumberofsourcesandmixingmatrix.Finallytheseparationofmixingsignalsusingamethodbasedonamendedsubspaceprojection.ThesimulationresultsindicatethattheproposedmethodcanseparateUWBcommunicationsignalssuccessfully,estimatethemixingmatrixwithhigheraccuracyandseparatethemixingsignalswithhighergaincomparedwithotherconventionalalgorithms.Atthesametime,themethodreflectsthehigherstabilityandthebetternoiseimmunity.

简介：新奇接收装置在这份报纸被建议使用盲目适应多用户察觉(泥)以高速度处理多重存取的干扰(MAI)和内部标志的干扰(ISI)的存在的技术跳跃时间极端宽带(TH-UWB)系统。接收装置第一采用抑制递归的最少的广场常数模量算法(RLS-CMA)为消除MAI和ISI进行适应decorrelation，然后使用设计近似subspace与放气(PASTd)追踪发射隧道评价的算法，做联合的最大的比率(MRC)并且加噪音比率(SINR)改进信号到干扰。建议接收装置能在所有四IEEE的UWB隧道下面很快去集中的模拟结果表演当模特儿，位错误比率(BER)性能比传统的接收装置和耙子接收装置的好。

简介：这篇文章基于新组限制建议改进概括方面脑叶canceller(GSC)接收装置结构，它是合适的消除多重存取的干扰(MAI)，在直接顺序的代码部门的内部标志的干扰(ISI)多重存取(DS/CDMA)downlink多用户系统。新组限制被推出构造组窗帘适应多用户察觉者。分析显示在新限制下面的改进GSC不仅保留压制ISI并且取消从成功的有用信息为需要的用户咬了的MAI，而且罐头摘录的性质。模拟证明改进GSC过滤器能高效地取消MAI无线隧道长度是否短或长，并且比其它完成更好的性能，比较了过滤器。