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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Chapter 9 : Data Transmission"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 2 : pg 349"
]
},
{
"cell_type": "code",
"execution_count": 1,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"The efficiency is 70.0 %\n"
]
}
],
"source": [
" \n",
"# page no 349\n",
"# prob no 9.2\n",
"#calculate the efficiency\n",
"#given\n",
"Nd=7; N_start=1; N_stop=1.; N_parity=1;\n",
"#calculations\n",
"Nt= Nd + N_start+ N_stop + N_parity;\n",
"efficiency=Nd/Nt *100;\n",
"#results\n",
"print 'The efficiency is',efficiency,'%'"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 6 : pg 358"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"5 hammming bits are required\n"
]
}
],
"source": [
" \n",
"# page no 358\n",
"# prob no 9.6\n",
"#calculate the no. of hamming bits\n",
"#given\n",
"m=21.;\n",
"#calculations and results\n",
"# The correct number of check bits is the smallest number that satisfy the equation 2**n >= m+n+1;\n",
"for n in range (1,10): # we choose range of 1 to 10\n",
" a=m+n+1;\n",
" b=2**n;\n",
" if(b>=a):\n",
" print n,'hammming bits are required'\n",
" break;\n",
" "
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 2",
"language": "python",
"name": "python2"
},
"language_info": {
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"name": "ipython",
"version": 2
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython2",
"version": "2.7.11"
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},
"nbformat": 4,
"nbformat_minor": 0
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|
