一级黄色片免费播放|中国黄色视频播放片|日本三级a|可以直接考播黄片影视免费一级毛片

高級搜索

留言板

尊敬的讀者、作者、審稿人, 關(guān)于本刊的投稿、審稿、編輯和出版的任何問題, 您可以本頁添加留言。我們將盡快給您答復(fù)。謝謝您的支持!

姓名
郵箱
手機(jī)號碼
標(biāo)題
留言內(nèi)容
驗證碼

高階數(shù)據(jù)調(diào)制比特軟輸出的遞歸計算方法

潘文 尤肖虎

潘文, 尤肖虎. 高階數(shù)據(jù)調(diào)制比特軟輸出的遞歸計算方法[J]. 電子與信息學(xué)報, 2006, 28(6): 1111-1114.
引用本文: 潘文, 尤肖虎. 高階數(shù)據(jù)調(diào)制比特軟輸出的遞歸計算方法[J]. 電子與信息學(xué)報, 2006, 28(6): 1111-1114.
Pan Wen, You Xiao-hu. The Recursive Calculation Method of Bit Soft Output[J]. Journal of Electronics & Information Technology, 2006, 28(6): 1111-1114.
Citation: Pan Wen, You Xiao-hu. The Recursive Calculation Method of Bit Soft Output[J]. Journal of Electronics & Information Technology, 2006, 28(6): 1111-1114.

高階數(shù)據(jù)調(diào)制比特軟輸出的遞歸計算方法

The Recursive Calculation Method of Bit Soft Output

  • 摘要: 該文設(shè)計了一種通過把低階PAM(QAM)星座圖遞歸排列形成高階調(diào)制的星座圖,這種星座圖與原信號的關(guān)系仍為Gray映射,即相鄰兩星座點的映射比特序列僅相差1bit。另外高階調(diào)制的比特軟輸出計算比較復(fù)雜,對每一種階數(shù)的調(diào)制需要各自的公式計算。研究結(jié)果表明高階調(diào)制的比特軟輸出可以通過低階調(diào)制遞歸計算得出。只需計算二進(jìn)制調(diào)制方式,就可計算出任意的高階調(diào)制的比特軟輸出。從而可降低復(fù)雜度。仿真表明上述方法簡化了高階調(diào)制軟信息的計算。
  • Goff S L, Glavieux A, Berrou C. Turbo-codes and high spectral efficiency modulation. IEEE ICC94, New Orleans, 1994: 645-649.[2]Berrou C, Glavieux A. Near optimum error correcting coding and decoding: Turbo-codes. IEEE Trans. on Commun., 1996, COM-44(10): 1261-1271.[3]Hagenauer S, Offer E, Papke L. Iterative decoding of binary block and convolutional codes. IEEE Trans. on Information Theory, 1996 42(2): 429-445.[4]Nordio A, Hernandez M A, Caire G. Low-complexity turbo equalization and multiuser decoding for TD-CDMA. IEEE Trans. on Commun., 2004 3(2): 454-465.[5]Yeo E, Nikolic B, Anantharam V. Iterative decoder architectures. IEEE Communications Magazine, 2003, 41(8): 132-140.[6]IEEE Std 802.11a/D7.0-1999, Part II: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: High Speed Physical Layer in the GHz Band.[7]Eklund C, Marks R B, Stanwood K L, Wang S. IEEE standard 802.16a: A technical overview of the wireless MANTM air interface for broadband wireless access. IEEE Communications Magazine, 2002, 40(6): 98-107.[8]Khun-Jush J.[J].et al.. Structure and performance of HIPERLAN/2 physical layer. IEEE VTC 99 Fall, Amsterdam, the Netherlands.1999,:-[9]Rappaport T S. Wireless Communications. Principles and Practice, New Jersey, Prentice Hall: 2002:1-20.[10]Korhonen J. Introduction to 3G Mobile Communications. Boston, London: 2nd Edition Artech House, 2003:7-16.[11]Colavolpe G, Ferrari G, Raheli R. Extrinsic information in iterative decoding: A unified view[J].IEEE Trans. on Comm.2001, 49(12):2088-2094[12]Tosato F, Bisaglia P. Simplified soft-output demapper for binary interleaved COFDM with application to HIPERLAN/2. 2002.ICC 2002. IEEE International Conference on Communications, New York, 2002, Vol. 2: 664-668.[13]Proakis J G. Digital Communications. 4rd edition, McGraw-Hill Inc.2001:254-283.[14]Bendetto S, Divsalar D, Montorsi G, Plooara F. Soft-output decoding algorithm in iterative decoding of turbo codes. JPL TDA Progress Report, 1996: 42-124.
  • 加載中
計量
  • 文章訪問數(shù):  2424
  • HTML全文瀏覽量:  93
  • PDF下載量:  1080
  • 被引次數(shù): 0
出版歷程
  • 收稿日期:  2004-11-08
  • 修回日期:  2005-11-11
  • 刊出日期:  2006-06-19

目錄

    /

    返回文章
    返回