What is the entropy of a source which outputs, every second, one of 5 possible messages, α, β, γ, δ and κ with a probability of pα = 1/2, pβ = 1/4, pγ = 1/8, pδ = 1/16 and pκ = 1/16? Suggest a coding method for this system. What is the source information rate? I get .875

What is the entropy of a source which outputs, every second, one of 5 possible messages, α, β, γ, δ and κ with a probability of pα = 1/2, pβ = 1/4, pγ = 1/8, pδ = 1/16 and pκ = 1/16? Suggest a coding method for this system. What is the source information rate? I get .875

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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What is the entropy of a source which outputs, every second, one of 5 possible messages, α, β, γ, δ and κ with a probability of p_α = 1/2, p_β = 1/4, p_γ = 1/8, p_δ = 1/16 and p_κ = 1/16? Suggest a coding method for this system. What is the source information rate?

I get .875

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