Carlson, A. Bruce Communication systems : an introduction to signals and noise in electrical communication / A. Bruce Carlson, Paul B. Crilly - 5th ed. - Boston : McGraw-Hill Higher Education, c2010 - xx, 924 p. : ill. ; 24 cm. Includes index ISBN: 9780073380407 (hard copy : alk. paper) 0073380407 (hard copy : alk. paper) Subjects--Topical Terms: Signal theory (Telecommunication)Modulation (Electronics)Digital communications