نتایج جستجو برای: compound channel

تعداد نتایج: 348645  

Journal: :Quantum Information Processing 2017
Holger Boche Gisbert Janssen Stephan Kaltenstadler

We consider classical message transmission under entanglement assistance for compound memoryless and arbitrarily varying quantum channels. In both cases, we prove general coding theorems together with corresponding weak converse bounds. In this way, we obtain single-letter characterizations of the entanglement-assisted classical capacities for both channel models. Moreover, we show that the ent...

2005
Ami Wiesel Yonina C. Eldar Shlomo Shamai Shitz

In this paper, we consider the optimization of the compound capacity in multiple input single output channels using partial channel state information at the transmitter side. We model the channel as a deterministic vector within a known ellipsoid, and maximize the compound capacity defined as the worst case capacity within this set. We find that the optimal transmit strategy is always beamformi...

Journal: :Channels 2012
Yu-Wen Lin Alejandro Akrouh YeouChing Hsu Nkecha Hughes Colin G Nichols Diva D De León

KATP channels regulate insulin secretion by coupling β-cell metabolism to membrane excitability. These channels are comprised of a pore-forming Kir6.2 tetramer which is enveloped by four regulatory SUR1 subunits. ATP acts on Kir6.2 to stabilize the channel closed state while ADP (coordinated with Mg(2+)) activates channels via the SUR1 domains. Aberrations in nucleotide-binding or in coupling b...

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