Space-time block code with equalization technology for underwater acoustic channels

In order to combat the effects of multipath interference and fading for underwater acoustic (UWA) channels, this paper investigates a scheme of the combination of space-time block code (STBC) and equalization technology. STBC is used in this scheme to reduce the effects of fading for the UWA channels, then equalization technology is used in this scheme to mitigate intersymbol interference. The performance of the scheme is analyzed with Alamouti space-time coding for the UWA channels. Our simulations indicate that the combination of STBC and equalization technology provides lower bit error rates.