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-{
- "metadata": {
- "name": "",
- "signature": "sha256:985ad452c65fa6c321f3f5a416b2ee95d94eb6cba2ef0da1eac4d7b73a848422"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
- {
- "cells": [
- {
- "cell_type": "heading",
- "level": 1,
- "metadata": {},
- "source": [
- "chapter1 - Overview of optical fiber communications"
- ]
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 1.6.1, page 1-15"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "from __future__ import division\n",
- "Bit_rate = 2*10**9 # bit rate of channel\n",
- "# Given sequence is 010111101110\n",
- "Shortest_duration = 1*(1/Bit_rate) # shortest duration is '1'\n",
- "Widest_duration = 4*(1/Bit_rate) #widest duration is '1111'\n",
- "Shortest_duration = Shortest_duration # seconds\n",
- "Widest_duration = Widest_duration # seconds\n",
- "print \"Shortest duration is %.1g seconds.\" %Shortest_duration\n",
- "print \"Widest duration is %.1g seconds.\" %Widest_duration"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Shortest duration is 5e-10 seconds.\n",
- "Widest duration is 2e-09 seconds.\n"
- ]
- }
- ],
- "prompt_number": 6
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 1.12.1, page 1-28"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "from __future__ import division\n",
- "from numpy import log2\n",
- "Bandwidth = 2*10**6 #Bandwidth of channel\n",
- "Signal_to_Noise_ratio = 1 #Signal to Noise ratio of channel\n",
- "Capacity = Bandwidth * log2(1 + Signal_to_Noise_ratio) #computing capacity\n",
- "Capacity=Capacity/10**6 \n",
- "print \"Maximum capacity of channel is %d Mb/sec.\" %Capacity"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Maximum capacity of channel is 2 Mb/sec.\n"
- ]
- }
- ],
- "prompt_number": 8
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Question 10, page 1-31"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "from __future__ import division\n",
- "Bit_rate = 2*10**9 # bit rate of channel\n",
- "# Given sequence is 010111101110\n",
- "Shortest_duration = 1*(1/Bit_rate) # shortest duration is '1'\n",
- "Widest_duration = 4*(1/Bit_rate) #widest duration is '1111'\n",
- "Shortest_duration = Shortest_duration # seconds\n",
- "Widest_duration = Widest_duration # seconds\n",
- "print \"Shortest duration is %.1g seconds.\" %Shortest_duration\n",
- "print \"Widest duration is %.1g seconds.\" %Widest_duration"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Shortest duration is 5e-10 seconds.\n",
- "Widest duration is 2e-09 seconds.\n"
- ]
- }
- ],
- "prompt_number": 9
- }
- ],
- "metadata": {}
- }
- ]
-} \ No newline at end of file