Background: The basic requirements for monitoring anesthetized patients during surgery are assessing cardiac and respiratory function. Esophageal stethoscopes have been developed for this purpose, but these devices may not provide clear heart and lung sound due to existence of various noises in operating rooms. In addition, the stethoscope is not applicable for continues monitoring, and it is u...

Communication in the presence of a priori known interference at the encoder has gained great interest because of its many practical applications. In this paper, additive exponential noise channel with additive exponential interference (AENC-AEI) known non-causally at the transmitter is introduced as a new variant of such communication scenarios‎. First, it is shown that the additive Gaussian ch...

40-bit OOK, 80-bit QPSK and 120-bit 16-QAM packets are generated with spectral efficiencies of 1, 2 and 3 b/s/Hz, exploiting concepts from OAWG. Results demonstrate potential for a Tb/s OAWG based transmitter using GHz electronics. ©2009 Optical Society of America OCIS codes: (320.5540) Pulse Shaping; (060.1660) Coherent Communications; (320.7100) Ultrafast Measurements.

A linear transmitter with correlated Gaussian white additive and multiplicative noises and a periodic signal coupled either additively or multiplicatively is considered. The correlations have a weak destructive effect in case of the additive signal and a strong constructive effect in case of the multiplicative one. Analytical results for the linear transmitter with the additive signal agree wit...

The polar transmitter architecture is a promising candidate for future mobile communications. It can outperform traditional IQ transmitters in terms of power efficiency and space consumption. The massive increase in bandwidth demand makes the design of the polar transmitter a challenging task. Since the polar transmitter incorporates digital signals at RF sampling rates, then signal processing ...

We report on an 100 MHz repetition rate integrated photonic transmitter at 850 nm with arbitrary amplitude and polarization modulation. The source is suitable for free-space quantum communication links, in particular for quantum key distribution applications. The whole transmitter, with the optical and electronic components integrated, has reduced size and power consumption. In addition, the op...

2.1 A simple power control algorithm for a wireless network. First some background. We consider a network of n transmitter/receiver pairs. Transmitter i transmits at power level pi (which is positive). The path gain from transmitter j to receiver i is Gij (which are all nonnegative, and Gii are positive). The signal power at receiver i is given by si = Giipi. The noise plus interference power a...

We study the synchronization problem in discrete-time via an extended Kalman filter (EKF). That is, synchronization is obtained of transmitter and receiver dynamics in case the receiver is given via an extended Kalman filter that is driven by a noisy drive signal from the transmitter. Extensive computer simulations show that the filter is indeed suitable for synchronization of (noisy) chaotic t...

The Australian NWC (North West Cape) signal transmitter is known to strongly interfere with the topside ionosphere. We analyze 456 conjunctions between Swarm A, B and NWC, in addition 58 NorSat-1 NWC. in-situ measurements provided by these satellites include 16 Hz Advanced Plasma Density data set, novel 1,000 plasma density from m-NLP system aboard NorSat-1. subject a detailed PSD analysis subs...

We consider a fading channel in which multiantenna transmitter communicates with multi-antenna receiver through reconfigurable intelligent surface (RIS) that is made of N passive scatterers impaired by phase noise. The beamforming vector at the transmitter, combining receiver, and shifts are optimized order to maximize signal-to-noise-ratio (SNR) receiver. By assuming Rayleigh (or line-of-sight...