

Computer Networking : A Topdown Approach 

Authors:  James F. Kurose, Keith W. Ross  Chapter:  Computer Networks And The Internet 
ISBN:  9780132856201  Exercise:  Problems 
Edition:  6  Question:  29 
Suppose there is a 10 Mbps microwave link between a geostationary satellite and its base station on Earth. Every minute the satellite takes a digital photo and sends it to the base station. Assume a propagation speed of 2.4 _ 108 meters/sec.
a. What is the propagation delay of the link?
b. What is the bandwidthdelay product, R · dprop?
c. Let x denote the size of the photo. What is the minimum value of x for the microwave link to be continuously transmitting?
a)
The Distance between geostationary satellite and earth (d) = 3.6*10^{7} meters
The Propagation speed (s) = 2.4*10^{8} meters/sec
The Transmission rate(R) = 10Mbps