In this work, we analyze the uplink capacity of a cellular Ricean channel system where clusters of small cell base stations are coordinated by a central processor. Two different scenarios dealing with intercluster interference are analyzed: global multicell joint decoding, where all base stations are connected to a central processor, and interference alignment that is used to mitigate interclus...

The hardening of modified polyacid composite resins (compomers) and glass-ionomers have been studied using infrared spectroscopy. The acid-base reaction in Ketac-fil, a glass ionomer, was followed by the ratio between the COOH band located around 1715 cm⁻¹ and that corresponding to COO⁻ located around 1570 cm⁻¹. The combination of infrared analysis and band narrowing treatments enable us to pro...

This paper proposes a flexible CELP speech coder with bitrate and bandwidth scalabilities for multimedia applications. The coder is based on multi-pulse-based CELP coding and consists of a bitrate scalable base-band coder and a bandwidth extension tool. The bitrate scalable base-band CELP coder employs multi-stage excitation coding based on an embedded-coding approach. The multipulse excitation...

We propose a new powerful way of synthesizing moiré images that enables the creation of dynamically moving messages incorporating text, symbols, and color elements. Moiré images appear when superposing a base layer made of replicated base bands and a revealing layer made of a line grating comprising thin transparent lines. Each replicated base band contains the same image, e.g. text or color mo...

In-band full-duplex (IBFD) communications has the potential to nearly double spectrum efficiency of existing 5G communications. Digital signal processing mitigate self-interference is one way realize this capability. However, aggregated wideband nature coupled with for large delay spreads and short coherence times makes realistic implementation such an IBFD processor challenging. In paper, we a...

Contemporary front-end processors, such as the IBM 3705,1 Memorex 1380, Burroughs Data Communications Processor3 and the MERIT Communications Controller, 4 share the same general architecture depicted in Figure 1. Communication !ines are associated on a one-on-one basis with line adapters. These are connected in small groups (clusters) to the local processor, and perhaps to the local memory, th...

A software radio is a radio whose channel modulation waveforms are defined in software. A software radio receiver is an embedded platform that can support different communication standards. All the base-band processing is performed on a DSP. On the receiver side, the base-band processing encompasses matched filtering of the incoming data, frame synchronization, frequency offset and phase offset...

Exposing native calf thymus DNA (in 0.1 M NaClO4, 5 mM cacodylic acid buffer, pH 6.81, 25 degrees C) to increasing concentrations of Hg(ClO4)2 produces dramatic changes in its circular dichroism (CD). Let r = [mol of added Hg(II)*/[mol DNA base]: the conservative CD spectrum of the DNA B-form, consisting of the 273 nm major (+) CD band, the 245 nm major (-) CD band, the 219 nm minor (+) CD band...

The Arctic responds rapidly to climate change, and the melting of land ice is a major contributor observed present-day sea-level rise. coastal regions these ice-covered areas are showing most dramatic changes in form widespread thinning. Therefore, it vital improve monitoring help us better understand their contribution sea levels. In this study, we derive ice-surface elevations from swath proc...