دانلود کتاب گیرنده‌های رادیویی برای سیستم‌های ارتباطات ثابت و سیار

This book, Radio Receivers for Fixed and Mobile Communication Systems, introduces the reader to the principles of building receivers of basic types of modulation and features of their architecture when using digital modulation methods, multiple access, and changing the structure of a radio engineering system. It is shown how the design of subscriber terminals changes when organizing simultaneous communication in opposite directions and mobility of at least one of the subscribers, when moving from the classical scheme of information transfer in fixed networks to mobile communication systems, handover of a mobile subscriber when switching between cells of one system or between different systems. The use of a cellular networking structure allows increasing the number of simultaneously served subscribers (increasing the system throughput) compared to systems served by a single BS (a single transmitter), while at the same time complicating the interaction algorithm between the BS and AT. The cellular structure of a mobile wireless communication system improves the efficiency of using the bandwidth allocated to the system by reusing operating frequencies.