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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:3bb6fed41815ab02f5db449f0fb6dc3bca89d7411c6822dfe382fccc1777b7c3"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 14: Mobile Network and Transport Layer"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 14.1, Page 452"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Variable declaration\n",
+      "O=800*1000; #Object size(Bytes)\n",
+      "S=536.*8;  #max Segment Size(in bits)\n",
+      "RTT=0.1; #Round trip-time in sec\n",
+      "R=1.*10**6; #Transmission rate of the link from the server to the client in bps\n",
+      "\n",
+      "#Calculations\n",
+      "Lmin=2*RTT+(O/R); #latency(msec)\n",
+      "# For minimum latency (S/R) +RTT -(W*S/R) = 0;Therefore\n",
+      "W=1+(RTT)/(S/R);\n",
+      "\n",
+      "#Results\n",
+      "print 'The minimum possible latency is %d sec'%Lmin;\n",
+      "print 'The minimum window size is %.1f segments'%W;"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The minimum possible latency is 1 sec\n",
+        "The minimum window size is 24.3 segments\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 14.2, Page 452"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "\n",
+      "#Variable declaration\n",
+      "RTT=0.1; #Round trip-time in sec\n",
+      "MSS=536.*8; #Maximum segment size in bits\n",
+      "p=0.01;# packet loss probability for the path\n",
+      "RTO=5*RTT; #Retransmission time out(from eqn 14.2 on page 450)\n",
+      "\n",
+      "#Calculations\n",
+      "R=0.93*MSS/(RTT*math.sqrt(p));\n",
+      "RR=MSS/(RTT*math.sqrt(1.33*p)+RTO*p*(1+32*p**2)*min(1,3*math.sqrt(0.75*p)));\n",
+      "\n",
+      "#Results\n",
+      "print 'The upper bound of the throughput is %.4f Mbps'%(R*10**-6);\n",
+      "print 'The throughput with retransmission due to errors is %.4f Mbps'%(RR*10**-6);"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The upper bound of the throughput is 0.3988 Mbps\n",
+        "The throughput with retransmission due to errors is 0.3341 Mbps\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
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