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SUMMARY:Omnidirectional Relay in Wireless Networks - Xie\, L-L (Waterloo)
DTSTART:20100408T153000Z
DTEND:20100408T163000Z
UID:TALK24086@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:For wireless networks with multiple sources\, an omnidirection
 al relay scheme is developed\, where each node can help relay multiple mes
 sages in different directions. This is accomplished by the decode-and-forw
 ard relay strategy\, with each relay binning the multiple messages to be t
 ransmitted\, in the same spirit of network coding. Specially for the all-s
 ource all-cast problem\, where each node is an independent source to be tr
 ansmitted to all the other nodes\, this scheme completely eliminates inter
 ference in the whole network\, and the signal transmitted by any node is u
 sed by any other node. For networks with some kind of symmetry\, assuming 
 no beamforming is to be performed\, this omnidirectional relay scheme is c
 apable of achieving the maximum achievable rate.\n\nI will try to expose t
 he key ideas behind this interference-free wireless networking\, starting 
 with the basic single-relay channel.
LOCATION:Seminar Room 1\, Newton Institute
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