Not enough spectrum

jes

jes

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Not enough spectrum

There are too many statements flying around of the kind, “The Internet is going wireless,” or “We know that broadband connections will become wireless.”
 
OMG!!!!! WE ARE ALL GOING TO DIE!!!!!


Seriously though...interesting read. Now ICASA....get your thumbs out your @ss....move SABC useless channels to digital, and give that spectrum to the mobile networks you twits! tsk
 
..and to think we have icasa to sort this out for us. hah
 
ocleroux said:
Ag jy wil nou weer net draad trek! *sigh*
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I'll take my that-much-more-reliable draad over latency-ridden, "Oh noes! Not rain!" wireless any day, thankyouverymuch. I can completely understand the need for making the most of wireless in ZA because the local loop still belongs to Telkom and yadda-yadda-yadda we have to work around that. Fantastic. That doesn't, however, change the fact that if you want the best latency and the best reliability along with the most stable speeds, that a wired solution (preferably fibre) is the best way to go.

To me, the whole fanfare around wireless is:
1) Meaningless to my demographic
2) A bunch of vultures picking at what they can get because the fat pig is hoarding the trough while the farmer continues to beat off any legitimate competition.

As fantastic as the whole mobile wireless fanfare and digital TV thing is, I've long ago become embittered by it as a cheap and unacceptable solution to a significant problem.

It's like we all crave pizza and we get a cruddy store-bought ham sandwich instead.
 
Lycanthrope said:
I'll take my that-much-more-reliable draad over latency-ridden, "Oh noes! Not rain!" wireless any day, thankyouverymuch. I can completely understand the need for making the most of wireless in ZA because the local loop still belongs to Telkom and yadda-yadda-yadda we have to work around that. Fantastic. That doesn't, however, change the fact that if you want the best latency and the best reliability along with the most stable speeds, that a wired solution (preferably fibre) is the best way to go.

To me, the whole fanfare around wireless is:
1) Meaningless to my demographic
2) A bunch of vultures picking at what they can get because the fat pig is hoarding the trough while the farmer continues to beat off any legitimate competition.

As fantastic as the whole mobile wireless fanfare and digital TV thing is, I've long ago become embittered by it as a cheap and unacceptable solution to a significant problem.

It's like we all crave pizza and we get a cruddy store-bought ham sandwich instead.
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Well put :)
 
http://en.wikipedia.org/wiki/Cognitive_radio

I'm working on it guys!! Give me time (and moneys!!!! :p [low consultation rates!!! :hehe:]) Though, IMO iK4K4 should put the government mouthpiece onto DVB-T(2) and free up the beauty of 900 to unregulated, and switch Voda and the rest to W-CDMA (I know, hard, but worth it). Believe it or not, best spectral efficiency is at 2.4, since it's a blood and guts battle there :D

P.S. Kind of disappointed at author, with "Until and unless the current laws of physics are invalidated in ways that remove current limits on spectrum capacity such as are embodied in Shannon’s Law, the future will see:". True, Shannon's Limit is there, but you forget that licensed spectrum isn't used all the time by the licensee (believe it or not, sometimes as low as 7% of the time). That's what us, the guys that do research in CR, aim to exploit. Once you are utilizing all your (practically) utilizable spectrum all the time, then you have a practical limit. This without even looking at spatial diversity and beamforming.

P.P.S. "If broadband wireless links could be constructed between any two points, with independent connections to points separated by only a few feet, then ultimately every user could have access to up to one to a few GHz of bandwidth." <- UWB, try 60 GHz :)

P.P.P.S :p, only realised now that it was actually a quote from another article. Original author does not keep up with the times much.
 
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fragtion said:
This is what Telkom should be researching. Clearly wireless isn't the way
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For this (and many countries in other continents) continent, wireless IS the way. How many posts do you see of people crying about Telkom refusing to provide service since the copper is stolen. WiMAX is an excellent solution to this, and let me not get into its power for rural penetration. Where wireless is not viable (and downright stupid) is backbone and high capacity links. It's common sense that you'd give higher end users wired (FTTx) in big cities, but the people who need internet in the smaller towns, copper is not cheap and fibre is comparable to starting from scratch.
 
UnUnOctium said:
For this (and many countries in other continents) continent, wireless IS the way. How many posts do you see of people crying about Telkom refusing to provide service since the copper is stolen. WiMAX is an excellent solution to this, and let me not get into its power for rural penetration. Where wireless is not viable (and downright stupid) is backbone and high capacity links. It's common sense that you'd give higher end users wired (FTTx) in big cities, but the people who need internet in the smaller towns, copper is not cheap and fibre is comparable to starting from scratch.
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Agreed, SA needs a hybrid solution
 
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