In recent years, wireless communication technology has undergone a tremendous change. Various radio access technologies have been deployed all over the world. The 4G mobile system was proposed to integrate of these into common network called open architecture (OWA) platform. As one main features system, always best connected (ABC) services enable users choose available networks in way that suits their needs. A new capable supporting ABC service is this study. There are three parts...

Abstract This paper proposes a new systematic design method based on coupling matrix theory and non-resonant structure for HTS (high-temperature superconducting) filters, which can introduce more transmission zeros (n + X) than the conventional theory. The proposed approach not only introduces at near end of passband through matrix, but also far structure. is realized by grounded microstrip line (GML) structure, exact expression derived equivalent circuit. To demonstrate method, two-order,...

Zero-valent iron (Fe0) has been extensively used in hexavalent chromium (Cr(VI)) removal from groundwater, but its treatment suffers interference of humic acid (HA) and ferrochrome precipitate. In this study, a biotic Fe0 system was established to address these problems Cr(VI) HA-rich groundwater by introducing combination heterotrophic hydrogen-autotrophic microorganisms. Due the formation HA-Fe complexes precipitates on surface, HA-abiotic obtained slight 10.5%. While HA-biotic system,...

Abstract In recent years, constructing a virtual backbone by nodes in connected dominating set (CDS) has been proposed to improve the performance of ad hoc wireless networks. general, satisfies that every vertex graph is either or adjacent set. A CDS also induces sub‐graph. However, finding minimum (MCDS) well‐known NP‐hard problem theory. Approximation algorithms for MCDS have literature. Most these suffer from poor approximation ratio, and high time complexity message complexity. this...

Load balancing is crucial to computational grids. Based on the typeof information which corresponding decisions are made, loadbalancing approaches can be generally categorized into two classes:average-based and instantaneous approaches. Both these classeshave merits demerits. It's therefore advantageous combineboth of them work in tandem form a hybrid approach that makesthe best strong points each. In this paper, we present ahybrid load strategy for sequential tasks computationalgrids with...

The demand for flexible broadband wireless services makes the pruning technique, including both shortening and puncturing, an indispensable component of error correcting codes. analysis process structured low-density parity-check (LDPC) codes can be considerably simplified with their equivalent representations through base-matrices or protographs. In this letter, we evaluate thresholds pruned by using protograph based on extrinsic information transfer (PEXIT). We also provide efficient...

Real-time task scheduling for multiprocessor systems is generally a NP-complete problem and thus genetic algorithms (GAs) are extensively used. However, since GAs aim to be one kind of universal algorithm across variety types, they hardly use problem-specific search techniques which might help speed up the process or lead better solution under certain scenarios. That partly prevents from performing more effectively efficiently. To overcome this, proposed handle real-time in this paper. The...

In order to optimize the local search efficiency of multi-objective parameters flux switching permanent motor based on traditional NSGA-II algorithm, an improved (iNSGA-II) algorithm is proposed, with anti-redundant mutation operator and forward comparison operation designed for quick identification non-dominated individuals. initial stage iNSGA-II half individual populations were randomly generated, while other was generated according feature distribution information. Taking stator/rotor...

To improve the inertia and damping properties of energy storage units (ESUs) interface converters in DC microgrids, an enhanced virtual machine (VDCM) control technique based on traditional P-U droop is proposed this paper. The scheme actively introduces additional to converter by equivalently analogizing with speed machine. With scheme, operation stability microgrid can be improved effectively. Due problem that under VDCM cannot achieve power distribution, a coordinated method proportional...

This paper reports the design of a nonlinear distributed Kalman consensus filter (NDKCF) with one-step random measurement delay and noise correlation for sensor networks. Because between system observed in multi-sensor systems, state cannot be predicted directly one-step, so correlated is first decoupled. When there transmission local observations from node, its predictor used as compensation. The NDKCF under unbiased minimum covariance criterion derived time, numerical integration form...

For memory and in-memory computing applications, the multi-level cell (MLC) capability is one of most favorable characteristics resistive random-access (RRAM). However, achieving stable MLCs typically demands a time-consuming programming strategy. This paper presents novel algorithm, Adaptive Step Adjustment Programming (ASAP), implemented on 1Mb RRAM chips fabricated using commercial 40nm CMOS technology. Our experimental results showcase remarkable improvement in 16-level MLC efficiency...

With the increasing proportion of power electronic equipment in system, dynamic characteristics system have undergone significant changes. In order to analyze more accurately, it is necessary select appropriate theories describe instantaneous signal. When state, amplitude and frequency voltage current are constantly changing. Based on this, some researchers put forward concept time-varying signals, which use relevant electrical quantities, regard process as modulating frequency, rather than...

Abstract Aiming to solve the problems of safety, low efficiency and large volume existing distribution network robots, a new distributed live working robot based on master-slave control algorithm with weak stiffness lag is designed in this paper. The smaller body used multi-level three-dimensional insulation isolation shielding measures which realize quick replacement end such as general mechanical, electrical interfaces. In system, ARM microprocessor signal processing terminal, displacement...

It has been shown that quasi orthogonal space time block codes (QOSTBC) can achieve high transmission rate with partial diversity. Constellation rotational QOSTBC full In this paper, we present a constellation concatenates Reed-Solomon (RS) error correction code structure. At the receiver, pairwise detection and are first implemented. The decoded data regrouped. Parallel interference cancellation (PIC) dual (OSTBC) decoding deployed to regrouped data. OSTBC obtain better performance than...

It is known that spread spectrum serves no help against white noise, but little literature gives explicit demonstration on this problem. In paper, two receiver structures for direct-sequence (DSSS) systems are described, the error probabilities receivers obtained, and equivalence of studied. shown a system using does not achieve an improvement in probability or signal-to-noise ratio (SNR) as long background noise additive Gaussian (AWGN).