About the Author Irwin Lebow started his career at Massachusetts Institute of Technology (MIT) Lincoln Laboratory, where he participated in the first stirrings of the digital revolution, contributing to pioneering efforts in digital computer design, error correction coding, and satellite communications. He later held senior-level positions in government and industry in Washington, D.C., where he is now a consulting engineer. Dr. Lebow has authored and coauthored three other books in the field of digital communications.