Water-Filling Capacity of Wide Band 60GHz Channels with Antenna Directionality

The 60GHz band is the most attractive candidate for the next generation of very high rate short range communication links. Directional antennas will be used in these systems to compensate for the high path loss at these high frequencies. Antenna directionality heavily affects the observed multipath and consequently the achievable capacity. Many applications that will use these systems only require point-to-point links. Hence, it will be feasible to use channel state information at the transmitter to improve the performance or the data rate. In this paper, we look at the effects of the directional antennas on the water-filling capacity of the wide band 60GHz channels.