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Transmit diversity scheme for TDS-OFDM system over the time selective fading channel

Published: 28 June 2010 Publication History

Abstract

Transmit diversity is an attractive technology in broadcasting environment. When it is applied in Chinese Digital Terrestrial Television Broadcasting (DTTB) system, the training sequences (TS) from the different transmit antennas for channel estimation and synchronization will interfere with each other. In order to overcome the problem, two methods are proposed in which the orthogonal TS is designed based on pseudo noise (PN) sequences. One method holds good compatibility with the existing network and the other one obtains good performance under time selective channel. The corresponding channel estimation method is also presented and analyzed in this paper. Simulations show that the proposed schemes can effectively estimate the channel state information and achieve great diversity gain, even more than 3.5dB under fast fading channels. Moreover they can both work well in some cases where the system with single antenna can't work.

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  • (2012)Channel estimation for TDS-OFDM transmit diversity systems over doubly selective channels2012 International Conference on Computing, Networking and Communications (ICNC)10.1109/ICCNC.2012.6167377(1098-1102)Online publication date: Jan-2012

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  1. Transmit diversity scheme for TDS-OFDM system over the time selective fading channel

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      cover image ACM Other conferences
      IWCMC '10: Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
      June 2010
      1371 pages
      ISBN:9781450300629
      DOI:10.1145/1815396
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Published: 28 June 2010

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      Author Tags

      1. TDS-OFDM
      2. space time block code
      3. training sequences group
      4. transmit diversity

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      • (2012)Channel estimation for TDS-OFDM transmit diversity systems over doubly selective channels2012 International Conference on Computing, Networking and Communications (ICNC)10.1109/ICCNC.2012.6167377(1098-1102)Online publication date: Jan-2012

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