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Opposing views to 3D Beamforming. Yin Zhu yinz@ust.hk 20 Feb 2013. Scale. Typical usage of 60GHz: wireless connection between a DVD player and an HDTV. The distance between racks is much longer. . Not many racks can be put inside this area. . Is the link quality stable enough? .
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Opposing views to 3D Beamforming Yin Zhu yinz@ust.hk 20 Feb 2013
Scale • Typical usage of 60GHz: wireless connection between a DVD player and an HDTV. • The distance between racks is much longer. Not many racks can be put inside this area. Is the link quality stable enough?
Interference How about from (0,0) to (10,0)? Angle: 10◦
Short bursts vs long rotations • “Short bursts” between racks are the whole point of augmenting wireless with the wire. • Rotation delay: 0.01 – 1 second (relatively long, compared to the amount of data to be transmitted) • The experiment is on randomly designed tasks, not the real DC tasks.
Restrictions on the # of concurrent connections in one node 8 is the maximum that can be put on a rack.
Big flat mirror • How can the mirror be flat without the issue of bent/cuvrature in the presence of gravity? • If the mirror is not perfect (e.g. not flat), the propagation model needs to be redesigned. • Cooling? Putting metal plates on the ceiling may cause severe coolingissues.
