透過您的圖書館登入
IP:18.119.110.116
  • 學位論文

區段編碼調變的一項新設計

A New Design of Block Coded Modulation

指導教授 : 馬尚智

摘要


區段碼調變結合了區段編碼及信號空間的子集分割,是一種有效利用頻寬的編碼。相較於籬柵編碼調變TCM,區段編碼調變更容易建立編碼。多階層編碼技術為一種有效的方法去建構區段調變碼,然而線性區段碼的籬柵生成複雜度以及解碼複雜度將隨著碼長的增加而增加。本篇論文將提出一種新的區段編碼調變的編碼設計方法,具有較長的編碼長度,較高之編碼增益與較低之複雜度。

並列摘要


BCM is a method of combining block codes and set partition of an expanded signal set to construct bandwidth-efficient codes Multilevel coding technique is a powerful method for constructing BCM codes. However , the difficulty and complexity of trellis of a linear block code will increase exponentially with the block length. We will propose a novel design of block coded modulation which has longer length、higher coding gains and lower complexity.

參考文獻


[14] 詹益坤,二元籬柵之反覆曲折平方建構, 中原大學, 2005
[15] 林慧美,多階層渦輪乘積編碼調變技術,中原大學,2004
[1] H. Imai and S. Hirakawa, "A new multilevel coding method using error correcting codes," IEEE Trans. Inform. Theory, vol. IT-23, pp. 371-377, 1977.
[2] L. Bahl, J. Cocke, F. Jelinek, and J. Raviv. "Optimal decoding of linear codes for minimizing symbol error rate," IEEE Trans. Inform. Theory, vol. IT-20, pp. 284- 287, Mar. 1974.
[3] J.K. Wolf, "Efficient maximum likelihood decoding of linear block codes using a trellis," IEEE Trans. Inform. Theory, vol. IT-24, pp. 76-81, January 1978.

延伸閱讀