基于TCM的UEP16QAM和64QAM方案
16QAM AND 64QAM SCHEMES WITH UNEQUAL ERROR PROTECTION BASED ON TRELLIS CODED MODULATION
-
摘要: 本文提出基于格狀編碼調(diào)制(TCM)的非均勻星座不等差錯(cuò)保護(hù)(UEP)16QAM(正交幅度調(diào)制)和64QAM方案,與通常的均勻星座M狀態(tài)QAM(MQAM)相比,UEP MQAM方案的重要數(shù)據(jù)和不重要數(shù)據(jù)均可獲得數(shù)個(gè)分貝的編碼增益。Abstract: Nonuniformly spaced 16QAM(Quadrature Amplitude Modulation) and 64QAM schemes with unequal error protection(UEP) that are designed using Trellis Coded Modulation (TCM) are proposed in this paper. Compared with conventional uniformly spaced MQAM, both the important data and the less important data of UEP MQAM can obtain several decibels of coding gain.
-
Digital Video Broadcasting(DVB)；Framing Structure,Channel Coding and Modulation for Digital Terrestrial Television(DVB-T)．European Telecommunication Standard, Final Draft prETS300744．1996，11[2]Morimoto M，Okada M，Komaki S．A hicrarchical image transmission systems for multimedia mobile communication．IEICE Trans．Commun., 1997, E80(5)：779-781[3]Fazel K, Ruf J M．Combined multilevel coding and multiresolution modulation．In：Proc of IEEE ICC，Houston，Texas：1993，1081-1085．[4]Ramchandran K, Ortega A，Uz M K，et al Multiresolution broadcasting for digital HDTV using sourcde／channel coding. IEEE J of SAC，1993，11(1)：6-22[5]Wei L F Coded modulation with unequal error protection, IEEE Trans.on Commun.,1993，4l(10)：1439-1449．[6]Ungerboeck G Trellis-coded modulation with redundant signals sets Part I：Introduction and Part II：Srate of the art．IEEE Commun．Mag., 1987，25(2)：5-2l[7]Prokis J G 數(shù)字通信．北京：電子工業(yè)出版社，1998：511-526. -
計(jì)量
- 文章訪問數(shù): 2417
- HTML全文瀏覽量: 157
- PDF下載量: 537
- 被引次數(shù): 0
下載:
