Question

The local spatial average of a power delay profile is shown in the following figure. We assume that the coherence bandwidth is approximated by B and the coherence time is estimated using the popular rule of thumb for modern digital communications. 5? P(z) (dBm) -10 -20 -30 0 25 50 125 ?(ns ) If a baseband message with a bit rate R, 400 kbps is modulated by an RF carrier frequency of 5.8 GHz and the mobile is traveling at 30 miles per hour. Which type of small-scale fading is the above channel if 64QAM modulation is used? Please show your detailed calculations to justify your answer.

Answer 1

Solutiam o- (d &m) -tO 20 as SD 123 fia®. 'spat al average of a pocuer deng freguencyaS8GH3 Rouoo kbps La

bomin 13.38 No.ot b?B = (uoo) Te -s No.of bPB ะ1uoo)心)(Ns Gven by 6 no:04 bpB per symbols 6