Optimal LQG Control of Networked Systems Under Traffic-Correlated Delay and Dropout

Transmission delay and packet dropout are inevitable network-induced phenomena that severely compromise the control performance of network systems. The real-time traffic is a major dynamic parameter directly influences reliability transmission channels, thus, acts as an unavoidable source induced coupling among all sharing In this letter, we analyze effects traffic-induced on finite-horizon quality-of-control individual stochastic linear time-invariant system, where measured by expected quadratic cost function. We model channel generic processes correlated with rest users. This approach provides pathway to determine required networking capabilities achieve guaranteed for systems operating over shared-traffic network. Numerical evaluations performed using realistic models dropout. As special case, consider exponential distribution its rate being traffic-correlated, traffic-correlated Markov-based drop model.