Introduction to Cellular Systems Training Course

[carlchapmantech]

Hi. Thanks for the comment. I think you are making this too difficult with a WiFi receiver. Is much more easy (and cheaper) for you to add another wireless router on the 3rd floor, and connect it the original router on the 1st floor with a network cable.

[unholyname]

i know this is not quite the right place for my question but it is very similar! ok so what i am looking to do and have been for a while is build all most like a mini Cell tower so that i can receive and send my wifi internet. example: i like in a 3 story home my wireless router is on the 1st floor i work out of the 3rd! so if i could make a small WIFI receiver that in its self send out the signal it can be like i have another router on the 3rd floor!

[pundadah]

Very Informative and knowledgeable video..MORE PLEASE.

[ohhellopandabear]

Thank you so much. Pls upload more videos! :)

[sathyamoorthyism]

very nice intelligent thinking

[29riteshkakkar]

nice , cool work..........................­.....

[meeral20]

Very useful Video.Thank you very much for a upload.

[rezamarand]

It says LTE and WiMax uses CDMA technology!!! lots of miss -information.

[carlchapmantech]

@rezamarand Thanks for your comment. There are a number of protocols and modulation techniques used for different types of LTE and WiMAX. However, this is an "Introduction to Cellular Systems". You are technically correct that CDMA IS95, CDMA2000 etc are not used in LTE or WIMAX, but I have referenced "CDMA" in conjunction with LTE and WIMAX to demonstrate that they utilize forms of spreadspectrum communications (similar to CDMA), rather than channelized GSM or TDMA type RF signatures ... Carl

[markottify]

@carlchapmantech No, WiMAX is strictly OFDMA and LTE only has DFT spread spectrum in the UL and cannot be described as "CDMA". I suggest you update your charts to include OFDMA as another air interface type and mention that DFT spread spectrum is ultiized on the UL of LTE but it is built upon an OFDMA signal.

[carlchapmantech]

@markottify Thanks for the feedback. The information you suggest is a little too advanced for this level of introduction course, but it is included in the more advanced courses.

[vunnammkrishna]

very nice one. basic information on celluar data

[sbmrunning]

i never thought that voice would be so.................COOL.......­.......to learn from! lol, thanks for this post. excellent video.

[carlchapmantech]

Thanks for your comment. I have more content, but it is a matter of time to process it.

The best way to extend the range of your 3G modem is to use a repeater or signal booster which will receive the signal and retransmit it around your area. Depending on your location, these may be available from your cellular operator, or a local electronics store.

[raymix1]

Thank you so much for your presentation, this kind of information is pretty new, so it's hard to find. If you have more, pls upload

I am looking into ways to manipulate 2.1Ghz waves to extend range of my 3G thumb stick in rural area