In this paper we examine theoretically the performance of an optical receiver based on an Hg0.77Cd0.23Te photoconductive detector for its possible application at 9.6 μm free space optical communication system at moderate bit rates. A rigorous noise model of the receiver has been developed for this purpose by incorporating all significant sources of noise. Our analysis reveals that the photocond...

In this paper, we investigate the impact of a bit-labeling scheme on security performance bit-interleaved coded modulation (BICM) systems for Gaussian wiretap channel, where concept gap plays an important role. To exemplify this, present optimization algorithms bit-labeling, difference achievable information rates (AIRs) legitimate receiver and eavesdropper is maximized. Our results demonstrate...

In this paper, we consider a transmission system employing orthogonal frequency division multiplexing (OFDM) with bit-interleaved coded modulation and perfect channel state information at both transmitter and receiver. An adaptive bit loading scheme in combination with cyclic delay diversity and discontinuous Doppler diversity is proposed at the transmitter and iterative demapping and decoding ...

High resolution analog to digital converters (ADCs) are conventionally used at the receiver terminals store an accurate representation of received signal, thereby allowing for reliable decoding transmitted messages. However, in a wide range applications, such as communication over millimeter wave and massive multiple-input multiple-output (MIMO) systems, use high ADCs is not feasible due power ...

The capacity of a class of deterministic relay channels with transmitter input X , receiver output Y , relay output Y = f(X;Y ), and separate noiseless communication link of capacity R from the relay to the receiver, is shown to be C(R ) = supminfI(X;Y ) +R ; I(X;Y; Y )g: Roughly speaking, every bit from the relay is worth one bit to the receiver until saturation at capacity.

This paper presents a novel mixed-signal verification methodology for jitter tolerance in highspeed serial-link receiver designs. The predictive approach includes identifying the jitter sources at the receiver input, generating the artificial jitter to add on input data and clock, and investigating the jitter sensitivities inside the receiver with bit error indicator. Both an artificial jitter ...