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We consider distributed medium access control in a wireless network where each link layer user (transmitter) is equipped with multiple transmission options as opposed to the classical binary options of transmitting/idling. In each time slot, a user randomly chooses a transmission option according to a “transmission probability vector”. Packets(More)
We present our achievement which is a ceramic plate phosphorable to produce white light when directly combined with commercially available blue light emitting diodes. The ceramic phase structure is that the Al₂O₃ particle is uniformly distributed in the Ce:YAG matrix. The Al₂O₃-Ce:YAG ceramic phosphor has a better luminous efficacy than the transparent(More)
This paper considers distributed medium access control in a wireless multiple access network with an unknown number of users. A multi-packet reception channel is assumed in which all packets should be received successfully if and only if the number of users transmitting in parallel does not exceed a known threshold. We propose a transmission adaptation(More)
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