Acta Metallurgica Sinica(English letters) ›› 2009, Vol. 16 ›› Issue (3): 30-32.doi: 10.1016/S1005-8885(08)60223-X

• Wireless • 上一篇    下一篇

High spectrum efficiency channel encoding method

杨春萍, LI Dao-ben   

  1. School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102208, China
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-06-30
  • 通讯作者: 杨春萍

High spectrum efficiency channel encoding method

YANG Chun-ping, LI Dao-ben   

  1. School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102208, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-30
  • Contact: YANG Chun-ping

摘要:

A novel high spectrum efficiency channel encoding method called overlapped code division multiplexing (OvCDM) is presented. It is a convolutional encoding method with code rate greater than 1. Compared with traditional coded modulation (CM) technologies, OvCDM emphasizes the constrain relation between encoded codes. It is actually a blind modulation. The simulation results in the additive white Gaussian noise (AWGN) channel indicate that OvCDM can significantly improve spectrum efficiency of mobile communications systems. Meanwhile, the proposed OvCDM can ensure high decoding performance.

关键词:

spectrum;efficiency,;convolutional;encoding,;code;rate,;AWGN,;OvCDM

Abstract:

A novel high spectrum efficiency channel encoding method called overlapped code division multiplexing (OvCDM) is presented. It is a convolutional encoding method with code rate greater than 1. Compared with traditional coded modulation (CM) technologies, OvCDM emphasizes the constrain relation between encoded codes. It is actually a blind modulation. The simulation results in the additive white Gaussian noise (AWGN) channel indicate that OvCDM can significantly improve spectrum efficiency of mobile communications systems. Meanwhile, the proposed OvCDM can ensure high decoding performance.

Key words:

spectrum efficiency;convolutional encoding;code rate;AWGN;OvCDM