A Flexible Superframe Structure Supporting Localization for TDS-OFDM

Ruifeng MA  Zhaocheng WANG  Zhixing YANG  

IEICE TRANSACTIONS on Communications   Vol.E95-B   No.12   pp.3922-3924
Publication Date: 2012/12/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.3922
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
TDS-OFDM,  sub-carrier spacing,  localization service,  

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This letter presents a flexible signal structure supporting localization service for time domain synchronous OFDM (TDS-OFDM) in multi-service transmission applications. Localization is treated as one specific service and the corresponding data is allocated within the physical layer pipe (PLP) of the first subframe. The concept of variable sub-carrier spacing to combat Doppler spread is also introduced for the localization service. Simulation results indicate that the proposed scheme outperforms the conventional scheme and at the same time achieves high positioning accuracy.