ZTE

ZTE Communications ›› 2010, Vol. 8 ›› Issue (1): 21-25.

• Special Topic • Previous Articles     Next Articles

Distributed Space- Time Coding in LTE System

Wei Guo, Zhang Chao, Wang Lei   

  1. Wireless Information Network Lab, University of Science and Technology of China, Hefei 230027, P. R. China
  • Online:2010-03-25 Published:2020-02-26
  • About author:Wei Guo is a professor of University of Science and Technology of China, director of Key Laboratory of MOE-Microsoft Multimedia Computing and Communication, director of Wireless Information Network Lab, and a member of Major Project Expert Team of National Broadband Wireless Communication System. His research interests include wireless communication technology, mobile communication network and signal processing.

    Zhang Chao is a doctoral student at University of Science and Technology of China. His research interests include cooperative communications and ultra broadband technology. He has published more than 20 papers.

    Wang Lei is a doctoral student at University of Science and Technology of China. His research interests include cooperative communications and channel coding technology. He has published more than 10 papers.
  • Supported by:
    This work was supported by the National Basic Research Program of China (“973” Program) under Grant No. 2007CB310602.

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Abstract: Relay is considered as one of the candidate key technologies of LTE-advanced for it brings broader cell coverage and higher system capacity. Distributed Space-Time Coding (DSTC ) not only exploits the spatial diversity from the relay structure, but also brings some coding gains. According to the performances of existing DSTC schemes, the Demodulate-and-Forward (DMF ) scheme is the best candidate for DSTC in LTE-Advanced system. Moreover, a threshold-based selective relaying scheme for DSTC is proposed to solve the error propagation of DMF. This scheme can achieve excellent performance gains at the cost of little system complexity.