Now showing items 1-6 of 6
Optimal and suboptimal receivers for code-multiplexed transmitted-reference ultra-wideband systems
In this study, optimal and suboptimal receivers are investigated for code-multiplexed transmitted-reference (CM-TR) ultra-wideband systems. First, a single-user scenario is considered, and a CM-TR system is modeled as a ...
Stochastic signaling in the presence of channel state information uncertainty
In this paper, stochastic signaling is studied for power-constrained scalar valued binary communications systems in the presence of uncertainties in channel state information (CSI). First, stochastic signaling based on the ...
Convexity properties of detection probability under additive Gaussian noise: optimal signaling and jamming strategies
In this correspondence, we study the convexity properties for the problem of detecting the presence of a signal emitted from a power constrained transmitter in the presence of additive Gaussian noise under the Neyman-Pearson ...
Optimal detector randomization for multiuser communications systems
Optimal detector randomization is studied for the downlink of a multiuser communications system, in which users can perform time-sharing among multiple detectors. A formulation is provided to obtain optimal signal amplitudes, ...
Optimal channel switching in the presence of stochastic signaling
Optimal channel switching and detector design is studied for M-ary communication systems in the presence of stochastic signaling, which facilitates randomization of signal values transmitted for each information symbol. ...
Error rate analysis of cognitive radio transmissions with imperfect channel sensing
In this paper, error rate performance of cognitive radio transmissions is studied in the presence of imperfect channel sensing decisions. It is assumed that cognitive users first perform channel sensing, albeit with possible ...