TY - BOOK AU - Ziemer, R E AU - Tranter, W H TI - Principles of communications : systems, modulation, and noise SN - 8126508396 CY - New Delhi KW - Communication systems KW - Data communication systems KW - Digital data transmission KW - Modulation techniques KW - Noise modulation KW - Signal systems N1 - Includes bibliographical references and index ER -