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{
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"name": "",
"signature": "sha256:0aa996ba15f5f5eba3a2dc2201fd870de2e572f5e18181b2de999d668db465cf"
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"CHAPTER 14 - Emerging Wireless Network Technologies "
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"EXAMPLE 14.3 - PG NO. 569"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#page no. 569\n",
"TDR=2000.#transmission data rate\n",
"Size=20.*8.\n",
"dtt=Size/TDR#data transfer time\n",
"print'%s %d %s' %('data transfer time =',dtt*10.**3.,'ms')\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"data transfer time = 80 ms\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"EXAMPLE 14.4 - PG NO. 569"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#page no. 569\n",
"TDR=2.\n",
"dtt=16.#data transfer time\n",
"Size=TDR*dtt#size\n",
"size=Size/8\n",
"print'%s %d %s %s %d %s' %('size of a file transferred is =',Size,'Mb', 'or',size,'MB(Mega Bytes)')\n",
" "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"size of a file transferred is = 32 Mb or 4 MB(Mega Bytes)\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"EXAMPLE 14.5 - PG NO. 571"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#page no. 571\n",
"import math\n",
"tn=52.#no.of subcarriers\n",
"np=4.#no.of subcarriers used as pilot subcarriers\n",
"nd=tn-np#no.of data subcarriers\n",
"FECcr=3./4.#forward error correction code rate\n",
"m=math.log10(64.)/math.log10(2.)#bits per symbol\n",
"ndpos=m*FECcr*nd#no. of data bits transmitted per ofdm symbol\n",
"odsd=4.*10.**-6.#data symbol duration\n",
"TDR=ndpos/odsd\n",
"print'%s %d %s' %('transmission data rate =',TDR*10**(-6),'Mbps')\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"transmission data rate = 54 Mbps\n"
]
}
],
"prompt_number": 3
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"EXAMPLE 14.10 - PG NO. 594"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#page no. 594\n",
"N=100.\n",
"c=4.\n",
"MNw=N*c\n",
"TNw=MNw/2.#no. of wireless links\n",
"print'%s %d' %('total no. of wireless links in the network is =',TNw)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"total no. of wireless links in the network is = 200\n"
]
}
],
"prompt_number": 4
}
],
"metadata": {}
}
]
}
|
