New Wireless Tech Lets Radio Devices Send and Receive Simultaneously, Doubling Efficiency
Radio communications devices can either send or receive wireless signals at a given moment, but they can’t do both at the same time (hence the regular use of the word “over” to signal the end of a transmission). But a team of electrical engineering grad students and professors at Stanford has done what researchers have long thought impossible by developing a new antenna setup that allows wireless signals to be sent and received at the same time.
That may not seem earth-shattering–cell phones allow simultaneous two-way communication after all–but given the fact that the breakthrough essentially doubles the speed of communications networks immediately, it’s actually somewhat huge.
Cell phone networks employ a complicated and expensive technological trick to allow for simultaneous two-way conversation, and that work-around isn’t feasible for all networks. This new system won’t just benefit long-haul truckers and air traffic controllers–though it certainly will benefit them. Where it could really shake up our everyday realities, it seems, is in Wi-Fi, which could become much, much faster using this kind of technology.
When a wireless transmitter is sending out a signal, that signal is million of times stronger than any incoming signal; as such, the transmitting signal drowns out any incoming communication. So the Stanford team devised a means for a receiver to screen the noise from its own transmitter out, much as our brains can screen out our own voices when we are both speaking and listening (this is explained in much greater detail in the video below).
As a result of this noise canceling the receiver can hear incoming traffic clearly. That means in a Wi-Fi network, for instance, computers could both send and receive packets of information simultaneously, potentially doubling efficiency in a given time frame (at least at the moments when you are both sending and receiving signals). The possibilities don’t end there. Check out the video below for more.
The Wife is going away for work for a few days. I’ll be here, the dawgs’ll be taking care of me while she’s gone.
Our alarms went off at the same time this morning. Hers went off, she turned it off. Then it went off again and she just laid there. After a sec0nd I whined “Baby turn it OFF!” she said “that’s not mine” I said “Oh” then I shut my alarm off.
The literary level of the content for this blog is exceptionally high, don’t you think?
This is another day that there’s no topic I can come up with.
It rained last night, the first significant rain since I don’t know when.
I had a really weird dream last night, about mango trees, wheat fields, spiders and snakes and my dog, Ditto. I won’t try to write the whole thing down, but I needed Ditto to save me from this snake, but I was afraid to yell because I thought he might think he had done something wrong and run away. Meanwhile this red snake is poised to strike at me. The theme of needing to take action and not because of the fear of repercussions is not new to me. Once in a dream, I went over a cliff in a car because I didn’t want to press the brakes hard enough to leave skid marks in the nice green grass.
Anyway, I’m just kind of rambling, so that’ll do for today.