It is notable that level crossing rate, outage probability and average time of fade duration of the combiner output signal are very important system performances. In this paper the level crossing rate, outage probability and fade duration of the SSC combiner output signal in the presence of the Nakagami-m fading are determined. The results are shown graphically for different variance values, de...

Recent experimental studies have shown that the relaxation time ${T}_{1}$ and dephasing ${T}_{2}$ of superconducting qubits fluctuate considerably over time. Time-varying quantum channel (TVQC) models been proposed in order to consider time-varying nature parameters define qubit decoherence. This dynamic channels causes a degradation performance error correction codes (QECCs) is portrayed as fl...

In this two-part paper, we study three capacity regions for fading broadcast channels and obtain their corresponding optimal resource allocation strategies: the ergodic (Shannon) capacity region, the zerooutage capacity region, and the capacity region with outage. In Part I, we obtained the ergodic capacity region of the fading broadcast channel under di erent spectrum-sharing techniques. In th...

Many different methods have been derived for evaluating the outage probability given fading, shadowing, or a combination of fading and shadowing. However, each of these methods imposes restrictions on the parameters or combination of fading and shadowing distributions. In this paper, we develop a general method to evaluate outage probabilities without restrictions based on Padé approximations (...

In this dissertation, we investigate the performance of point-to-point wireless ad hoc networks. The performance evaluation is performed in terms of outage probability, which is defined as the probability of receiving messages correctly. This metric is stochastic, and closely related to the ubiquitous notions of throughput and transmission capacity. In order to make the analysis tractable, we e...

Orthogonal frequency-division multiplexing (OFDM) communication-radar networks are systems where individual nodes use OFDM signals to both communicate and perform radar simultaneously. As a research subject, such networks are fairly new and lack some research covering fundamental limits. In particular, it is unclear how the reliability of the radar component is affected by a network operation, ...

A threshold based opportunistic relaying cooperative communication protocol has been analysed in this thesis. The relay is selected opportunistically to maximize the end-to-end signal to noise ratio received at the destination. The relay selection may be proactive and reactive. The underlying communication protocol at relay is decode and forward cooperation. At destination Maximal Ratio Combini...