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Wireless positioning using TDS-OFDM signals in single frequency networks

Wireless positioning using TDS-OFDM signals in single frequency networks
Wireless positioning using TDS-OFDM signals in single frequency networks
Wireless positioning using digital television (DTV) signals is a promising complementary to global positioning system due to high transmission power and wide coverage of DTV transmitters. Without changing the current infrastructure of Chinese DTV broadcasting network, this paper proposes a positioning scheme using time-domain synchronous (TDS) orthogonal frequency division multiplexing (OFDM) signals in single-frequency networks. The transmission parameter signaling (TPS) embedded in the TDS-OFDM signals is time-division multiplexed as orthogonal frequency-domain pilots, and then the time-domain pseudorandom noise sequence and the frequency-domain TPS are jointly utilized for accurate time of arrival (TOA) estimation for each transmitter. The theoretical bound of the TOA estimation accuracy is also derived. The proposed wireless positioning scheme has no impact on the normal TV program reception. Simulation results show that the positioning accuracy of less than 1 m can be achieved in SFN scenarios. The idea of time-frequency joint positioning can also be applied to other OFDM-based wireless systems.
236-246
Dai, Linglong
a3b9a8e1-777f-4196-a388-969444c7239d
Wang, Zhaocheng
70339538-3970-4094-bcfc-1b5111dfd8b4
Pan, Changyong
aa1be232-a735-464f-9902-86c201b3b038
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Dai, Linglong
a3b9a8e1-777f-4196-a388-969444c7239d
Wang, Zhaocheng
70339538-3970-4094-bcfc-1b5111dfd8b4
Pan, Changyong
aa1be232-a735-464f-9902-86c201b3b038
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80

Dai, Linglong, Wang, Zhaocheng, Pan, Changyong and Chen, Sheng (2012) Wireless positioning using TDS-OFDM signals in single frequency networks. IEEE Transactions on Broadcasting, 58 (2), 236-246. (doi:10.1109/TBC.2011.2182431).

Record type: Article

Abstract

Wireless positioning using digital television (DTV) signals is a promising complementary to global positioning system due to high transmission power and wide coverage of DTV transmitters. Without changing the current infrastructure of Chinese DTV broadcasting network, this paper proposes a positioning scheme using time-domain synchronous (TDS) orthogonal frequency division multiplexing (OFDM) signals in single-frequency networks. The transmission parameter signaling (TPS) embedded in the TDS-OFDM signals is time-division multiplexed as orthogonal frequency-domain pilots, and then the time-domain pseudorandom noise sequence and the frequency-domain TPS are jointly utilized for accurate time of arrival (TOA) estimation for each transmitter. The theoretical bound of the TOA estimation accuracy is also derived. The proposed wireless positioning scheme has no impact on the normal TV program reception. Simulation results show that the positioning accuracy of less than 1 m can be achieved in SFN scenarios. The idea of time-frequency joint positioning can also be applied to other OFDM-based wireless systems.

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Published date: June 2012
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 339010
URI: http://eprints.soton.ac.uk/id/eprint/339010
PURE UUID: 2d083a21-9955-4dae-ab59-881554971a54

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Date deposited: 21 May 2012 14:31
Last modified: 02 Dec 2019 20:58

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Contributors

Author: Linglong Dai
Author: Zhaocheng Wang
Author: Changyong Pan
Author: Sheng Chen

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