I have 33 years of experience, and specialize in the field of wireless communications with specific knowledge in the areas of digital communications, modem development and cellular systems. I have published on such topics as multiple-input and multiple-output systems, cellular networks and error control techniques. I have testified on contractual problems between two companies. I started my professional life in 1977 in the field of communications and has always been at the top of my field. I have had different kinds of professional activities in this field including industrial work and academic work. The most interesting part of my career was when I co-funded a company and developed a fixed broadband wireless access system as vice president of engineering.