An epidemiologically-based needs assessment review of peri-wound treatment and protection

Abstract—Families of asymptotically regular LDPC block code ensembles can be formed by terminating (J, K)-regular protograph-based LDPC convolutional codes. By varying the termination length, we obtain a large selection of LDPC block code ensembles with varying code rates and substantially better iterative decoding thresholds than those of (J, K)-regular LDPC block code ensembles, despite the fact that the terminated ensembles are almost regular. Also, by means of an asymptotic weight enumerator analysis, we show that minimum distance grows linearly with block length for all of the ensembles in these families, i.e., the ensembles are asymptotically good. We find that, as the termination length increases, families of “asymptotically regular ” codes with capacity approaching iterative decoding thresholds and declining minimum distance growth rates are obtained, allowing a code designer to trade-off between distance growth rate and threshold. Further, we show that the thresholds andthedistancegrowthratescanbeimprovedbycarefullychoosing the component protographs used in the code construction. I

Development and Implementation of a 3.6 GFLOP/s SIMD-DSP using the Synopsys Toolchain

Mobile communication systems, wireless and handheld terminals require low power, yet high performance DSPs. These DSPs are used in software defined radio applications and for computation of streaming media. To decrease time-to-market, development of these DSPs has to be done in a very short time. A design flow which is based on proprietary tools and powerful components from SYNOPSYS achieves this goal. In this paper a design methodology based on a novel architecture template called synchronous transfer architecture is presented. In a use case study a 3.6 GFPLOP/s SIMD digital signal processor wa

Requirements for a CR-system:challenges compared to conventional wireless technology

Abstract Cognitive Radio (CR) technology is a promising enabler towards a more efficient and dynamic use of the frequency spectrum. The challenges related to using the vacant frequencies in an opportunistic manner put extra constraints on the system if it is going to provide reliable services to the end user. When, in addition, we want a system to provide managed quality of service (QoS) and mobility, the challenges are even more demanding. There are two major challenges for cognitive radio systems based on opportunistic spectrum access: the need to keep track of the spectrum; and the aim of providing managed QoS and mobility. Both these are external constraints generally not present for licensed wireless operation and they call for additional functionality and flexibility in the system as well as the need for additional interfaces to handle the new information. The EU-project QoSMOS has addressed this in defining the overall requirements for the system and we show how these responds to the challenges

Waveforms for sub-THz 6G:design guidelines

Abstract The projected sub-THz (100 — 300 GHz) part of the upcoming 6G standard will require a careful design of the waveform and choice of slot structure. Not only that the design of the physical layer for 6G will be driven by ambitious system performance requirements, but also hardware limitations, specific to sub-THz frequencies, pose a fundamental design constraint for the waveform. In this contribution, general guidelines for the waveform design are given, together with a non-exhaustive list of exemplary waveforms that can be used to meet the design requirements