DAPRA Interference Multiple Access (IMA)
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I saw a YouTube presentation from BAE systems about a new communications algorithms system called DIMA that allows 500% more messages to be combined, transmitted and untangled without encryption and conventional compressing, utilising WiFi (802.11N) as the transmission medium. 802.11N is not tied to a specific portion of the spectrum, but is approved for both 2.4-GHz and 5- GHz (http://en.wikipedia.org/wiki/802.11), unlike 802.11A at 5-GHz and 802.11B & 802.11G with both using the spectrum at 2.4-GHz.
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The video quotes high WiFi data rate speeds that suggests three times the efficiency of 802.11 (600 M/bits). I was trying to imagine the impact of that on the backhaul to, for instance, the Internet, using an E1 circuit (http://en.wikipedia.org/wiki/E-carrier#E1) where 1E1 = 2.048 Mbits. If the data rate speeds and throughput are too high it could mean E1 might clog the flow causing congestion, choking the system when throughput to destinations might be paramount.
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I could see this technology coming to into use for a security matter, emergency rescue or commercial event in several years time, perhaps for special events like security at the London Olympics in 2012 or perhaps for a search and rescue operation and so on.
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Mind you, having unmanned aerial vehicles (UAVs) hovering above in the sky might seem strange at first, but would they be cheaper and more carbon-footprint friendly than helicopters? As the BAE video suggests UAVs (http://en.wikipedia.org/wiki/Unmanned_aerial_vehicle) reduce the need for fixed systems, thus enable immediate deployment of hot networks when they are needed. I wonder whether it could be adapted to receive the UAV images and video onto smart phones? Can you imagine looking at spectacular live aerial photographs and video evidence and trying to process and preserve it as evidence? Probably would need to have the evidence recorded to a x-Gb sized smart card.
I saw a YouTube presentation from BAE systems about a new communications algorithms system called DIMA that allows 500% more messages to be combined, transmitted and untangled without encryption and conventional compressing, utilising WiFi (802.11N) as the transmission medium. 802.11N is not tied to a specific portion of the spectrum, but is approved for both 2.4-GHz and 5- GHz (http://en.wikipedia.org/wiki/802.11), unlike 802.11A at 5-GHz and 802.11B & 802.11G with both using the spectrum at 2.4-GHz.
.
The video quotes high WiFi data rate speeds that suggests three times the efficiency of 802.11 (600 M/bits). I was trying to imagine the impact of that on the backhaul to, for instance, the Internet, using an E1 circuit (http://en.wikipedia.org/wiki/E-carrier#E1) where 1E1 = 2.048 Mbits. If the data rate speeds and throughput are too high it could mean E1 might clog the flow causing congestion, choking the system when throughput to destinations might be paramount.
.
.
I could see this technology coming to into use for a security matter, emergency rescue or commercial event in several years time, perhaps for special events like security at the London Olympics in 2012 or perhaps for a search and rescue operation and so on.
.
Mind you, having unmanned aerial vehicles (UAVs) hovering above in the sky might seem strange at first, but would they be cheaper and more carbon-footprint friendly than helicopters? As the BAE video suggests UAVs (http://en.wikipedia.org/wiki/Unmanned_aerial_vehicle) reduce the need for fixed systems, thus enable immediate deployment of hot networks when they are needed. I wonder whether it could be adapted to receive the UAV images and video onto smart phones? Can you imagine looking at spectacular live aerial photographs and video evidence and trying to process and preserve it as evidence? Probably would need to have the evidence recorded to a x-Gb sized smart card.
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