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UID:456@lincs.fr
DTSTART;TZID=Europe/Paris:20190626T140000
DTEND;TZID=Europe/Paris:20190626T150000
DTSTAMP:20190701T141611Z
URL:https://www.lincs.fr/events/talk-by-kyle-jamieson/
SUMMARY:Leveraging Quantum Annealing for Large MIMO Processing in
 Centralized Radio Access Networks
DESCRIPTION:\n\n\nConventional thinking treats the wireless channel as a
 given constraint\, so wireless networks to date center on the problem
 optimizing the communication endpoints. We instead explore whether it is
 possible to reconfigure the environment itself to facilitate wireless
 communication. In this work\, we instrument the environment with a large
 array of inexpensive antennas (LAIA) and design algorithms to configure
 them in real time. We design and deploy a 36-element passive array in a
 real indoor home environment. Experiments with this prototype show that\,
 by reconfiguring the wireless environment\, we can achieve a 24% TCP
 throughput improvement on average and a median improvement of 51.4% in
 Shannon capacity over the baseline single-antenna links. Over the baseline
 multi-antenna links\, LAIA achieves an improvement of 12.23% to 18.95% in
 Shannon capacity.\n\n\n\nUser demand for increasing amounts of wireless
 capacity continues to outpace supply\, and while 5G Massive MIMO wireless
 designs begin to address this\, even higher-performance systems now remain
 impractical largely only because their algorithms are extremely
 computationally demanding. The base station's computational capacity is
 thus becoming one of the key limiting factors on wireless capacity. I will
 discuss work in large MIMO centralized radio access network designs backed
 by quantum computation. We have implemented one such design\, QuAMax\, on
 the 2\,031 qubit D-Wave 2000Q quantum annealer\, the state-of-the-art in
 the field. Our experimental results evaluate that implementation on real
 and synthetic MIMO channel traces\, showing that 30 ?s of compute time on
 the 2000Q can enable 48 user\, 48 AP antenna BPSK communication at 20 dB
 SNR with a bit error rate of 1 ppm and a 1\,500 byte frame error rate of
 0.01%.\n\n\n
CATEGORIES:Seminars,Youtube
LOCATION:Paris-Rennes Room (EIT Digital)\, 23 avenue d'Italie\, 75013
 Paris\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=23 avenue d'Italie\, 75013
 Paris\, France;X-APPLE-RADIUS=100;X-TITLE=Paris-Rennes Room (EIT
 Digital):geo:0,0
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DTSTART:20190331T030000
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