to Erlang-B and Erlang C. Telemanagement July-August. [5] http://www.erlang.com/calculator/erlb/, accessed 23 October 2015. http://atlantic-cable.com/Books/Whitehouse/DDC/index.htm, accessed 20 August 2015. [7] http://news.bbc.co.uk/2/hi/uk_news/scotland/glasgow_and_west/5375796.stm,accessed 20 August 2015. [8] Froehlich, F. E. and Kent, A. (1997) Encyclopedia of Telecommunications, Dekker. [9] http://www.vny.cuny.edu/blizzard/building/building_fr_set.html,accessed 20 August 2015. [10] htp://www.u-s-history.com/pages/h1803.html, accessed 20 August 2015. [11] http://www.marketwatch.com/story/sbc-to-acquire-att-in-16-billion-deal works, accessed 20 August 2015. [12] https://www.aapt.com.au/aapt/about-aapt,accessed 20 August 2015. Information Theory Preview Questions Is a picture really worth a thousand words? How can one calculate the information content of a picture/a text? How long does it take for the Mars Discovery probe to transmit a photo of Martian surface to Earth? How can information generated by a source be converted to a binary sequence? How does the power of a message signal matter in its accurate transmission and reception? How do you calculate the maximum possible transmission rate of a communication system? Learning Objectives Information content measurement Source information generation rate and entropy Principles of source coding Link budget calculation Channel capacity calculation Broadband Telecommunications Technologies and Management, First Edition. Riaz Esmailzadeh. © 2016 Riaz Esmailzadeh. Published 2016 by John Wiley & Sons, Ltd. Companion Website: www.wiley.com/go/BTTM Information Theory Historical Note Claude Shannon's (pictured)¹ [1] seminal 1948 paper, 'A mathe- matical theory of communication' [2] is widely considered to be the foundation upon which the fields of information theory and digital communications have been built. The paper is the theoretical foundation which determines how we encode, communicate, and store information in discrete digital form. Shannon was a researcher at Bel