Embedded differential space-time coding for wireless broadcast

Chih Hung Kuo, C. C.Jay Kuo

研究成果: Conference article同行評審

摘要

An embedded differential space-time coding method is proposed for wireless broadcast application in this work. Our previous work [1] investigated embedded space-time codes for layered media broadcast. In such a system, a transmitter sends out multi-layer source signals by encoding different layers with different space-time codes. Then, the receiver can retrieve a different amount of information depending on the number of antennas it has as well as the level of receiving power. The receiving terminals with one antenna can decode only the base layer information with a low complexity while terminals with more antennas can retrieve more layers of information. In this research, we further consider the case when the channel state information (CSI) is unknown. The differential coding technique is adopted here. Transmitted symbols are encoded as a certain combination of previous symbols so that the receiver can retrieve the information without CSI. We explore the embedded design with differential STC to enable layered media transmission. Differential detection with Kalman filtering is also investigated to help improve performance.

原文English
頁(從 - 到)85-96
頁數12
期刊Proceedings of SPIE - The International Society for Optical Engineering
4869
DOIs
出版狀態Published - 2002
事件Emerging Technologies for Future Generation Wireless Communications - Boston, MA, United States
持續時間: 2002 7月 292002 7月 30

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電腦科學應用
  • 應用數學
  • 電氣與電子工程

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