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{
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"name": "",
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 19: Wireless Personal Area Network - Bluetooth"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 19.1, Page 666"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#Variable declaration\n",
"SS=80.; #Frame length of HV3 voice packet\n",
"R=64*10**3; #Data rate in bps\n",
"TS=240; #No of bits carried in a slot\n",
"\n",
"#Calculations\n",
"#From table 19.3:Bluetooth air interface details, we get Frequency hopping rate as 1600hopes/second\n",
"\n",
"#From table 19.5, we can note that for HV3, No of slots are 1 and carry in all(80(user voice sample)+160(parity bits))=240 bits in one slot packet\n",
"HR=1600; #hopes/second\n",
"Eff=SS/TS;\n",
"x=R/SS; #x is number of times a packet is sent\n",
"\n",
"#Results\n",
"print 'Hopping rate is %d hopes/sec'%HR;\n",
"print 'No of bits transmitted in one slot are %d'%TS;\n",
"print 'Efficiency of packet transmission is %.4f'%Eff;\n",
"print 'Number of times a packet is sent is equal to %d'%x;"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Hopping rate is 1600 hopes/sec\n",
"No of bits transmitted in one slot are 240\n",
"Efficiency of packet transmission is 0.3333\n",
"Number of times a packet is sent is equal to 800\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 19.2, Page 666"
]
},
{
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"collapsed": false,
"input": [
"#Variable declaration\n",
"R=136.; # bits per slot\n",
"SR=800; # no of slots per second\n",
"\n",
"#Calculations\n",
"# A symmetric 1-slot DM1 link is setup between a master and a slave\n",
"AR=R*SR; #Data rate in bps\n",
"\n",
"#Result\n",
"print 'Associated data rate is %0.1f kbps'%(AR/1000);"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Associated data rate is 108.8 kbps\n"
]
}
],
"prompt_number": 2
}
],
"metadata": {}
}
]
}
|
