Journal of Beijing University of Posts and Telecommunications

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JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2007, Vol. 30 ›› Issue (5): 112-116.doi: 10.13190/jbupt.200705.112.longh

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A Channel Estimation Algorithm for Cyclic Delay Diversity

LONG Hang, ZHAO Hui, SU Jian, WANG Wen-bo   

  1. (School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China)
  • Received:2006-12-07 Revised:2006-12-27 Online:2007-10-30 Published:2007-10-30
  • Contact: LONG Hang

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Abstract:

Based on the dilemma of delay value in cyclic delay diversity (CDD), a new transmission scheme based on CDD and its channel estimation method is presented. Delay values are different among symbols with pilot. Those symbols with pilot and symbols with data are different too. With the new channel estimation algorithm, the cyclic delay diversity is robust to the delay value.

Key words: cyclic delay diversity, multimedia broadcast and multicast service, common pilot

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