Results 41 to 50 of about 1,422,467 (276)
The Capacity of the Quantum Multiple Access Channel
, 2001 We define classical-quantum multiway channels for transmission of classical information, after recent work by Allahverdyan and Saakian. Bounds on the capacity region are derived in a uniform way, which are analogous to the classically known ones, simply ...
Winter, Andreas
core +2 more sources
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Chip-Level Channel Equalization in WCDMA Downlink
EURASIP Journal on Advances in Signal Processing, 2002 The most important third generation (3G) cellular communications standard is based on wideband CDMA (WCDMA). Receivers based on TDMA style channel equalization at the chip level have been proposed for a WCDMA downlink employing long spreading sequences ...
Heikkilä Markku J +5 more
doaj +1 more source
Classical Capacity of A Quantum Multiple Access Channel
, 2000 We consider the transmission of classical information over a quantum channel by two senders. The channel capacity region is shown to be a convex hull bound by the Von Neumann entropy and the conditional Von Neumann entropy.
Hou, Guang, Huang, Minxin, Zhang, Yongde
core +1 more source
On the stability of flow-aware CSMA [PDF]
, 2010 We consider a wireless network where each flow (instead of each link) runs its own CSMA (Carrier Sense Multiple Access) algorithm. Specifically, each flow attempts to access the radio channel after some random time and transmits a packet if the channel ...
Bonald, T., Feuillet, M.
core +5 more sources
Random access and source-channel coding error exponents for Multiple Access Channels [PDF]
2013 IEEE International Symposium on Information Theory, 2013 Comment: This paper is submitted to IEEE transactions on information theory. It was presented in part at ISIT2013 (IEEE International Symposium on Information Theory, Istanbul)
Farkas, Lóránt, Kói, Tamás
openaire +3 more sources
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
N-DCF: MAC overhead reduction using narrow channel contention in wireless networks
EURASIP Journal on Wireless Communications and Networking, 2018 This paper presents a medium access control protocol for wireless networks that improves system spectral efficiency using multiple channels. Use of multiple narrow channels has already been proposed as a solution to reduce MAC overhead, but merely ...
Jungmin So, Ayinebyona Eliab
doaj +1 more source
On the Multiple Access Channel with Asynchronous Cognition
, 2016 In this paper we introduce the two-user asynchronous cognitive multiple access channel (ACMAC). This channel model includes two transmitters, an uninformed one, and an informed one which knows prior to the beginning of a transmission the message which ...
Leshem, Amir +2 more
core +1 more source
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source