'Basic probability and pulse theory' (Telecommunications, 2017), 'Transceiver and System Design for Digital Communications, 5th Edition', Chap. 6, pp. 185-215, DOI: 10.1049/PBTE080E_ch6 IET Digital Library, https://digital-library.theiet.org/;jsessionid=6gdfjt0h6jfbg.x-iet-live-01content/books/10.1049/pbte080e_ch6