Saya mau tau Types of communications channels dari Kanal (komunikasi). Jelaskan dalam bahasa sunda

C. E. Shannon, A mathematical theory of communication, Bell System Technical Journal, vol. 27, pp. 379–423 and 623–656, (July and October, 1948)

Amin Shokrollahi, LDPC Codes: An Introduction

Hsu, Hwei P., Schaum's Outline of Théory and Problems of Analog and Digital Communications, MGraw Hill, 1993