1. Rappaport, T.S. 1996 Wireless Communications: Principles & Practice, Prentice Hall Communications Engineering and Emerging Technology Series.
2. Haykin, S 1996. Adaptive Filter Theory, Third Edition, Prentice Hall Inc, pp. 365–405.
3. Pattan, B. 200. Robust Modulation Methods and Smart Antennas in Wireless Communications, Prentice Hall, PTR, NC.