Format of IEEE802.11p PHY layer.

Format of IEEE802.11p PHY layer.

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Increase of the traffic flow and traffic accident has raised more and more demands on vehicular node positioning. Because GNSS (Global Navigation Satellite System) can only work in LOS (Line Of Sight) environment, a correlate-sum method is proposed, that is, firstly cross-correlate between the received signal and the short preamble, secondly sum up...

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Context 1
... format of IEEE802.11p PHY layer is as shown in Fig. 1. The preamble field used for time, frequency synchronization and channel estimation is divided into two parts, short preamble and long preamble. The former consists of ten same symbols with 16 sub-symbols for each and the latter consists of one cyclic prefix symbols (32 sub-symbols) and two same symbols (64 sub-symbols for each). ...