This master thesis presents a preliminary investigation into the impact of TCP’s advertised receive buffer size and timer granularity on TCP performance over an erroneous link in a low earth orbit (LEO) satellite environment. Conducted simulations include over 200 different combinations of TCP flavor, advertised receive buffer size, timer granularity, and bit error rates. Results show that TCP ...

Although in the design of transmit RF coils, B(1) homogeneity is crucial for good image quality, discussion of electric field (E-field) distribution in the literature has been mostly limited to specific absorption rate (SAR) and patient loading (dielectric) effects. In this work, we report on a different aspect of E-field: the receive-only surface coil heating resulting from the voltage drop ac...

Eighty-five young adults exposed to a cluster of peer suicides as adolescents completed measures of attitudes toward suicide, grief, and social support. Closeness to the peers lost to suicide was positively correlated with grief and the belief that suicide is not preventable, with grief further elevated in close individuals with high social support from friends. Overall, social support was rela...

Both parents and peers have been validated by previous research as being important contributors to the development of religious faith. The purpose of this study was to elucidate the contributions of the transmission (e.g., parent church attendance) and transactional (e.g., discussions about faith) models of socialization, as well as explore the possibility that a third model, the transformation...

This paper presents a new approach to global clock distribution in which traditional tree-driven grids are augmented with onchip inductors to resonate the clock capacitance at the fundamental frequency of the clock node. Rather than being dissipated as heat, the energy of the fundamental resonates between electric and magnetic forms. The clock drivers must only provide the energy necessary to o...

We focus on the stochastic properties of the packet loss process of a switch with output buffering. Higher-order packet loss characteristics are important performance measures since the packet loss ratio is often insufficient to assess user perceived quality of service for various types of multimedia streaming applications. Using a probability generating functions approach, we obtain both per b...

For supporting handoff mobile users on heterogeneous wireless networks to synchronously receive and play out multicast multimedia stream data, we propose a two-layer Hierarchical Synchronized Multimedia Multicast (HSMM) architecture to enhance the single-layer Synchronized Multimedia Multicast (SMM). In HSMM, each wireless network operator can adapt its own management mechanism, such as routing...

We propose a novel optical switching system using fast time-slotted passive switching with shared OEO buffers. Simulation results show that the proposed system significantly reduces the blocking probability below 10 at a 28% cost of a traditional system due to flexibility of contention resolution using electrical buffer and potentially requires very low power consumption. The proposed switching...

Arbitrary closed exponential queueing networks are examined such as with finite capacities and blocking or dynamic routing. Conditions are provided from which a simple upper bound on the system throughput and an error bound for its accuracy can be concluded. These conditions are illustrated for a Jackson network with finite entrance buffer and overflow station. An explicit error bound for this ...