1. Angle diversity vs. space diversity at 6 GHz: Results of a 3.5 year test;Allen;Int. Telecommun. Symp., Taipei, Feb,1992
2. The effect on error performance of angle diversity in a high capacity digital microwave radio system;Alley;IEEE/IEICE Global Telecommun. Conf. Rec.,1987
3. Multipath propagation at 4, 6, and 11 GHz;Barnett;Bell Syst. Tech. J.,1972