In this paper, the performance of some communication systems using chaos sy
nchronization is evaluated and compared. A new channel model taking the att
enuation. impedance mismatch and noise into account, is proposed for the pe
rformance evaluation. The evaluation of bit error rate is done for both ide
al and non-ideal conditions using the channel model. It is confirmed that s
ome chaos-based communication systems have a good performance compared with
conventional analog communication schemes.