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Eleventh International Network Conference (INC 2016)
Title: Low Complexity Channel Estimation Method for IEEE 802.11p Vehicle Communications
Author(s): Chi-Min Li, Feng-Ming Wu
Keywords: Channel Estimation; IEEE802.11p; OFDM
Abstract: ITS has adopted the IEEE802.11p standard as its protocol . Besides, IEEE 802.11p also known as the Wireless Access in the Vehicular Environment (WAVE) can be applied in the Dedicated Short Range Communications (DSRC). Basically, IEEEE 802.11p is an Orthogonal Frequency Division Multiplexing (OFDM) system with the frequency band from 5.850GHz to 5.925GHz. The data rate can up to 3Mbps to 27Mbps within the coverage 300m to 1000m. Six data channels and one control channel have been defined in the IEEE 802.11p. Each channel consists of 64 sub-carriers within the 10MHz frequency band. In fact, 802.11p is an extension from the commercial IEEE 802.11a Wi-Fi system. However, the Guard Interval (GI) for the 802.11p is twice as the IEEE 802.11a that can be very helpful to avoid the Inter-symbol Interference (ISI) for the multipath vehicular communication environments. Table.1 lists the comparisons between the 802.11a and the 802.11p systems.
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