Title :
Pseudo-pilot OFDM scheme for 802.11a and R/A in DSRC applications
Author :
Sibecas, Salvador ; Corral, Celestino A. ; Emami, Shahriar ; Stratis, Glafkos ; Rasor, Gregg
Author_Institution :
Motorola Labs, Plantation, FL, USA
Abstract :
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.
Keywords :
OFDM modulation; automated highways; equalisers; error statistics; mobile radio; packet radio networks; radio receivers; 5.9 GHz; IEEE 802.11R/A; IEEE 802.11a; OFDM; channel equalization; data slots; dedicated short range communication; high mobility; intelligent transport systems; packet error rate; physical layer; pseudo-pilot scheme; roadside applications; Bit error rate; Delay estimation; Forward error correction; Frequency estimation; Intelligent systems; Internet; OFDM; Physical layer; Quadrature amplitude modulation; Roads;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th
Print_ISBN :
0-7803-7954-3
DOI :
10.1109/VETECF.2003.1285219
