通信工程专业英语文献翻译.doc

Multi-CodeTDMA(MC-TDMA)munications用于多媒体卫星通信的MC--TDMA(多码时分多址复用)-puterEngineering-,Montreal,Quebec,Canada,H3G1M8ABSTRACT摘要Inthispaper,binationofTDMAandCDMA,在这篇文章中,我们提出一种基于把时分多址复用和码分多址复用集合的多址接入方案。referredtoasmulti-codeTDMA(MC-TDMA).称作多码—时分多址复用TheunderlyingTDMAframestructureallowsforthetransmissionofvariablebitrate(VBR)information,-rangedependentdatatraffic,andVBRreal--TDMA,thedatapacketdelayandtheprobabilityofreal-:采用MC-TDMA的多媒体卫星通信,数据包延时和实时数据丢失的可能性可以保持很低。Theaboveadvantagesareachievedattheexpenseofsoftblocking,urswhenmanypacketsaretransmittedsimultaneously,,当很多数据包以不同的扩频码同时传输时会发生软阻塞。Similarconclusionsaredrawnforsimulationswherethechannelpropagationconditions,adjacentbeaminterference,,相邻的电波干扰和非理想功率控制等因素也会有相似的结论。,,,,这种通信方式对在通信的用户所在的位置和他们之间的距离不敏感Withtheincreasedemphasisplacedonmultimedia,现在重点放在多媒体上,anyproposedsystemmustbeabletosupportamixtureofvoice,video,,视频和数据的混合Typicalapplicationscouldincludevideoconferencing,LANinterconnection,medicalimaging,remotevideomonitoring,andthelike典型的技术包括视频会议,局域网互联,医学影像,远程视频监控和类似于这类的技术。.Asaconsequence,thesatellitesystemmustbeabletosupportalltheseservices,,卫星系统必须可以支持所有这些服务和未来可能很受欢迎的服务。Thepro