Pseudo-pilot OFDM scheme for 802.11a and R/A in DSRC applications

A pseudo-pilot scheme is proposed for 802.11a and 802.11R/A (roadside applications version) in DSRC (dedicated short range communication) applications. The scheme overcomes the shortcomings of the original IEEE 802.11a standard by substituting pilots in selected data slots for channel equalization; at the receiver, the pilots are removed and random data inserted. It is shown that the technique is very effective in addressing the high mobility DSRC environment with minor changes to the 802.11a and R/A physical layer.

[1]  O. Edfors,et al.  An analysis of two-dimensional pilot-symbol assisted modulation for OFDM , 1997, 1997 IEEE International Conference on Personal Wireless Communications (Cat. No.97TH8338).

[2]  J.A.C. Bingham,et al.  Multicarrier modulation for data transmission: an idea whose time has come , 1990, IEEE Communications Magazine.

[3]  L. Van der Perre,et al.  Hybrid OFDM for future DSRC applications , 2000, Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152).

[4]  Leonard J. Cimini,et al.  Analysis and Simulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing , 1985, IEEE Trans. Commun..

[5]  Peter Adam Hoeher,et al.  A statistical discrete-time model for the WSSUS multipath channel , 1992 .

[6]  Ramjee Prasad,et al.  OFDM for Wireless Multimedia Communications , 1999 .

[7]  M. Minges.  Mobile cellular communications in the Southern African region , 1999 .

[8]  Celestino A. Corral,et al.  On the suitability of 802.11a/RA for high-mobility DSRC , 2002, Vehicular Technology Conference. IEEE 55th Vehicular Technology Conference. VTC Spring 2002 (Cat. No.02CH37367).