نتایج جستجو برای: z channel
تعداد نتایج: 370840 فیلتر نتایج به سال:
We study the process e+e → e+e+e+e for ILC and CLIC energy regimes, in the minimal 3-3-1 model framework. The main contributions, for the production of two bileptons each one decaying into two same-sign leptons, come from s-channel annihilation (via γ, Z and Z ) and t-channel electron exchange. We evaluate the number of events for an extra neutral gauge boson mass MZ′ in the range 1 TeV to 3 Te...
The measurement of the charmonium (J/ψ, ψ′) and bottomonium (Υ, Υ′, Υ′′) resonances and Z boson in nucleus-nucleus collisions provides crucial information on high density QCD matter. The observation of anomalous suppression of J/ψ at the CERN-SPS and RHIC is well established but the clarification of some important questions requires equivalent studies of the Υ family, only possible at LHC energ...
The present work provides a reliable interpretation of the K α1/K α2 intensity ratios and an explanation of the lifetime values for K -shell hollow atoms based on an advanced theoretical analysis (using extensive multiconfiguration Dirac–Fock calculations with the inclusion of the transverse Breit interaction and quantum electrodynamics corrections). It was found that, as a result of closing th...
B Details of posterior computation 3 B.1 Sampling individual channel variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 B.1.1 Channel active features, f (i) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 B.1.2 Channel state sequence, z (i) 1:T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 B.1.3 Channel transition parameters, η . . ...
In this paper, a new power control scheme is proposed to improve the reliability of a Device-to-Device (D2D) communication. The proposed scheme is optimal in terms of the probability of successful transmission. All transmitters in the network form a homogeneous Poisson Point Process (PPP). The complementary cumulative distribution function (CCDF) of the transmit power is derived at D2D receiver...
| The use of multiple transmitter and receiver antennas allows to transmit multiple signal substreams in parallel and hence to increase communication capacity. In order to distribute the multiple signal substreams over the MIMO channel, linear spacetime codes have been shown to be a convenient way to reach high capacity gains with a reasonable complexity. The space-time codes that have been int...
1 Format From other sources To other destinations Channel symbols Message symbols Message symbols Information sink Optional Essential Channel symbols Digital input m i Information source Pulse modulate Bandpass modulate Synchronization Bit stream Digital baseband waveform Digital bandpass waveform u i g i (t) s i (t) z(T) r(t) X M T C h a n n e l Format Detect Demod-ulate & Sample Source encode...
We consider the optimal design of sequential transmission over broadcast channel with nested feedback. Nested feedback means that the channel output of the outer channel is also available at the decoder of the inner channel. We model the communication system as a decentralized team with three decisionmakers—the encoder and the two decoders. Structure of encoding and decoding strategies that min...
The trapdoor channel is a binary input/output/state channel with state changing deterministically as the modulo2 sum of the current input, output and state. At each state, it behaves as one of two Z channels, each with crossover probability 1/2. Permuter et al. formulated the problem of finding the capacity of the trapdoor channel with feedback as a stochastic control problem. By solving the co...
We present a search for associated HI 21 cm absorption in sample of 29 radio-loud active galactic nuclei (AGNs) at $0.7 < z 1$, carried out with the upgraded Giant Metrewave Radio Telescope. detect against none our target AGNs, obtaining $3\sigma$ upper limits to optical depth $\lesssim$ 1% per 50 km s$^{-1}$ channel. The radio luminosity sources is lower than that most AGNs searched similar re...
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