'Front Matter' (Telecommunications, 2017), 'Introduction to Digital Wireless Communications', Chap. fm, pp. -, DOI: 10.1049/PBTE072E_fm IET Digital Library, https://digital-library.theiet.org/;jsessionid=bdemflfsfk4f9.x-iet-live-01content/books/10.1049/pbte072e_fm