In this work, we observe the behavior of block space-time code in wireless channel dynamics. The block space-time code is optimally constructed in slow fading. The block code in quasi-static fading channels provides affordable complexity in design and construction. Our results show that the performance of the block space-time code may not be as good as conventionally convolutional coding with s...

OF THE DISSERTATION Service Outage Based Adaptive Transmission in Fading Channels by Jianghong Luo Dissertation Director: Prof. Roy Yates, Prof. Predrag Spasojević The service outage based allocation problem explores variable rate transmission schemes and combines the concepts of ergodic capacity and outage capacity for fading channels. The ergodic capacity determines the maximum achievable rat...

HERE is a steady rise in the number of mobile system users in the recent times. In order to accommodate more users in a given bandwidth, the spectral efficiency needs to be improved. So, frequency reuse technique is being adopted to increase spectral efficiency [1]. However, frequency reuse causes inter channel and co-channel interference which is more than additive white Gaussian noise of many...

A decision feedback based receiver for correlated fading channels with unknown state is presented in this paper. It is shown that LDPC codes have both capacity approaching performance and universal performance with this receiver on fading channels. The fundamental idea is to decompose a fading channel into a bank of memoryless sub-channels with partially known state, then successively decode th...

Fading broadcast channels have been studied extensively over the past 30 years and the Shannon capacity of these channels is well established. This paper examines the Shannon capacity of two-user fading broadcast channel using superposition coding and assuming perfect channel information at both the receiver and transmitter with the additional constraint of maintaining minimum data rates for bo...

The channel capacity of dual-branch MRC (maximal ratio combining) diversity system over correlated waveform intensity, which is characterized as correlated-Nakagami-m fading (the power is modeled as the correlated-Gamma statistics), is evaluated in this paper. The formulas of channel capacity performance are provided with a pdf (probability density function)-based approach. The pdf of sum of Ga...

In this paper, modulation classification of digitally modulated signals is done using Linear Discriminant Analysis (LDA) under the influence of additive white guassian noise (AWGN) as well as the channel effect such as fading. The modulations considered for the classification purpose are PSK 2 to 64, FSK 2to 64 and QAM 2 to 64. The channels considered throughout the simulations are AWGN, Raylei...

In this letter, we derive an average symbol error rate (ASER) expression of rectangular quadrature amplitude modulation (RQAM) scheme for unmanned aerial vehicle-enabled communication systems operating over double-shadowing and double-scattering composite fading channel. A moment generating function the receiver output signal-to-noise ratio is obtained to analyze ASER non-coherent schemes. An a...

This paper investigates the effect of Rician fading and correlation on the capacity and diversity of MIMO channels. The use of antenna arrays at both sides of the wireless communication link (MIMO systems) can result in high channel capacity provided the propagation medium is rich scattering or Rayleigh fading and the antenna arrays at both sides are uncorrelated. However, the presence of line-...

In this paper, we consider the transmission of confidential information over a κ-μ fading channel in the presence of an eavesdropper, who also observes κ-μ fading. In particular, we obtain novel analytical solutions for the probability of strictly positive secrecy capacity (SPSC) and the lower bound of secure outage probability (SOP) for channel coefficients that are positive, real, independent...