Research Article

Channel Characterization for 700 MHz DSRC Vehicular Communication

Table 3

OFDM System design parameters.

Channel metric OFDM system parameter constraint

Max Delay Spread ( 𝑇 m a x ) 𝑇 m a x < 𝑂 𝐹 𝐷 𝑀 Guard  Interval
Coherence Bandwidth ( 𝐡 𝑐 ( 5 0 ) ) 𝐡 𝑐 > 𝑆 𝑒 𝑏 𝑐 π‘Ž π‘Ÿ π‘Ÿ 𝑖 𝑒 π‘Ÿ 𝑆 𝑝 π‘Ž 𝑐 𝑖 𝑛 𝑔
Doppler Spread ( 𝐷 𝑠 ) 𝐷 𝑠 < 1 0 % S u b c a r r i e r S p a c i n g
Coherence Time ( 𝑇 𝑐 ( 5 0 ) ) 𝑇 𝑐 > 𝑃 π‘Ž 𝑐 π‘˜ 𝑒 𝑑 𝐷 𝑒 π‘Ÿ π‘Ž 𝑑 𝑖 π‘œ 𝑛