Engineers unveil two-way wireless breakthrough (Engineering Colleges Tamil Nadu - phys)

 "This means wireless companies can increase the bandwidth of voice and data services by at least a factor of two by sending and receiving at the same time, and potentially by a much higher factor through better adaptive transmission and user management in existing networks," said Khandani, a Waterloo electrical and computer engineering professor.

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Current wireless systems suffer from shortcomings similar to old walkie-talkies that don’t allow users to talk and listen on the same frequency at the same time. That's because the strength of the transmission overwhelms any incoming signal on the same frequency.

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“Wireless is in desperate need of a breakthrough, and two-way comes at the right time," Khandani added. "The cost in hardware and signal processing complexities and antenna size is very low and virtually the same as current one-way systems. Two-way wireless systems will also have a profound impact on wireless networks in terms of quality of service and efficiency.”

The wireless advancement also opens the possibility to have ultra-secure transmission. “This can be done in ways that are much superior to current encryption techniques that are not truly secret, just hard to guess," said Khandani.

His research group is well known for introducing breakthrough ideas in wireless industry. In 2006, it came up with the idea of Interference Alignment, which radically changed the mindset about interference management, and it is now a mainstream in academic and industry research. Khandani predicts two-way wireless will reshape the future of the wireless industry, which is under overwhelming pressure for higher data rates.

The Waterloo Engineering research breakthrough is based on technology patented by Khandani in 2006 and issued in 2010, with many more innovations since then. 

The video clip introduces many new applications for two-way technology such as methods for interference management, security enhancement, and a unique approach to wireless connectivity called media-based, which is created by embedding data in transmission media rather than in the transmitted RF signal. Media-based approach offers significant benefits compared to traditional MIMO systems even with a smaller number of antennas.

Next steps requires industry involvement by including two-way in forthcoming standards to enable wide spread implementation.

Comments

Here's another breakthrough in wireless innovation. Looks like there's plenty more bandwidth to look forward to in the future.

t is a shame for Americans that wireless prices are so fantastically high compared to more modern nations.

VD, You've finally wrote something I can agree with! Why do wireless providers charge more in America? "Because they can".

I think that is kind of the "necessity is the mother of invention" mentality. The issue most people have is when that necessity, or in this case high cost, is artificially created for insane profit margins. This mentality would imply jacking up prices on all goods would expedite the nations journey to a utopia since it would stimulate a rapid development in all fields. In reality, it would hurt many people. Let's not create necessity where non exists, life hands out plenty of needs already.

So what's the alternative? Tax Verizon and AT&T when they raise cell phone plan rates? They will just pass the extra cost from the higher taxes on to their customers just as in history. I would advocate lowering costs(lowering taxes, mimume wages, regulations) for the industry to make it more practical for more ambitious competition to spring up and ultimately lead to lower costs.

Except according to history lowering taxes has no effect on lowering costs or raising employment. Science also shows that innovation is significantly stifled by profiteering and all competition does is prevent innovation because nobody wants to bet on the unknown except the government.Nobody implied increasing taxes. I think the obvious answer is charge a reasonable price for services and allow the growing number of users and the human need for faster technologies drive progress rather than crippling costs caused by ridiculous mark-ups.

I have a 13 year old that has mowed my lawn for the past year. The other day I told him I was implementing a 10% tax on him. I determined it was not fair that he got all of that money while another 13 year old that lives on the street did not get anything. Although the 2nd 13 year old sat at home and played video games all day he could really use the 10% for school supplies and school lunches (he had spent his allowance on video games so he really NEEDED the money to support his education).Do you know what the 13 year old who was mowing my lawn did - he quit. On a more serious note - please quote when in history that a significant and real decrease in taxes did not boost the overall economy and innovation.BTW - I hold over 50 patents. I look for high profit areas for innovation. I guess you look for low profit areas to innovate. What world do you live in?