Reliability of quantum-mechanical communication systems

Reliability of quantum-mechanical communication systems

We are concerned with the detection of a set of M messages that are transmitted over a channel disturbed by chaotic thermal noise when quantum effects in the communication systems are taken into account. Our attention was restricted to the special case in which the density operators specifying the states of the received field are commutative. From quantum-mechanical description of the noise and...

Reliability assessment of mechanical systems

Reliability of mechanical systems pdf

Electrical Mechanical Systems for Command, Control, Communications. Essentially the area under the curve defined by the PDF of the PDF from t.The reduction of system reliability due to accumulated damage is quantitatively. THE reliability of a mechanical system may be defined as the.The estimation of reliability of mechanical systems under variable constraints. The probability density function ...

On reliability function of quantum communication channel

Let H be a Hilbert space. We consider quantum channel [4] with a finite input alphabet {1, ..., a} and with pure signal states Si = |ψi >< ψi|; i = 1, ..., a. Compound channel of length n is in the n–tensor product of the space H , i.e. Hn = H ⊗ . . . ⊗ H . An input block (codeword) u = (i1, . . . , in) , ik ∈ {1, . . . a}, for it means using the compound state ψu = ψi1 ⊗ . . . ⊗ ψin ∈ Hn and t...

Communication Reliability in Distributed Real-time Systems Communication Reliability in Distributed Real-time Systems

Common techniques to realize fault-tolerance in distributed real-time systems are the replication of components (node computers) and the inter-connection of these components by redundant communication channels. The communication between the components has to be reliable and predictable in its timing behavior. We describe a communication protocol which is suitable for synchronous distributed arc...