The worldwide large-scale commercial deployment of 5G has commenced in 2020 for supporting enhanced Mobile BroadBand (eMBB), ultra-Reliable and Low-Latency Communications (uRLLC), massive Machine-Type (mMTC) services. Nevertheless, the upsurge Artificial Intelligence (AI)-powered applications, developmental law one-decade-one-generation wireless communications inherent limitations have also been spurring industry academia to dedicate their efforts research future 6G systems. will be a...

Hybrid Transmit Precoding (TPC) is one of the most compelling solutions for millimeter wave (mmWave) multiple-input multiple output (MIMO) systems. However, attention has been focused on narrow-band scenarios. Hence, we dedicate our efforts to design hybrid TPC wideband mmWave MIMO systems, where beam squint dramatically affects system performance. We firstly show that channel matrices different subcarriers possess distinct subspaces in case high bandwidths, hence traditional schemes suffer...

Hybrid precoding is essential for millimeter wave (mmWave) multiple-input multiple output (MIMO) systems due to its inherent advantage of a high gain, whilst alleviating the cost hardware. However, most existing literature considered either narrowband or wideband single-user mmWave MIMO scenarios. Hence in this paper we focus our attention on more challenging design hybrid Transmit Precoding (TPC) multiuser by exploiting long-term channel's covariance matrix and angle departure (AoD)...

In this paper, we focus on the design of hybrid analog/digital precoding in millimeter wave multiple-input multiple-output (MIMO) systems. To reduce feedback overhead, propose two non-uniform quantization (NUQ) codebook based schemes for main implementations, i.e., full-connected structure and sub-connected structure. Specifically, firstly group angles arrive/departure (AOAs/AODs) scattering paths into several spatial lobes by exploiting sparseness property angular domain, which divides...

Despite being pretrained on multilingual corpora, large language models (LLMs) exhibit suboptimal performance low-resource languages. Recent approaches have leveraged encoders alongside LLMs by introducing trainable parameters connecting the two models. However, these methods typically focus encoder's output, overlooking valuable information from other layers. We propose \aname (\mname), a framework that integrates representations all encoder layers, coupled with \attaname mechanism to...

In this paper, we focus our attention on the mitigation of beam squint for reconfigurable intelligent surface (RIS) aided wideband millimeter wave (mmWave) communications. Due to intrinsic passive property, phase shifts all elements in RIS should be same frequencies. However, scenario, induced distinct path phases require designing different The above irreconcilable contradiction will dramatically affect system performance, considering usually consists enormous and bandwidth mmWave...

This paper focuses on the design of low complexity hybrid analog/digital precoding and diversity combining in millimeter wave (mmWave) Internet Things (IoT) systems. First, by exploiting sparseness property mmWave angular domain, we propose a spatial lobes division (SLD) to group total paths channel into several (SLs), where each SLs form low-rank subchannel. Second, based SLD operation, scheme, named (HYP-SLD). Specifically, for subchannel, formulate as sparse reconstruction problem...

In this paper, we consider a generalized sub-array-connected (GSAC) architecture for arbitrary radio frequency (RF) chain and antenna configurations, where the number of RF chains connected to sub-array antennas in each can be arbitrary. Our design objective is improve energy-efficiency hybrid precoder millimeter-wave massive multiple input output (MIMO) systems. We firstly propose successive interference cancellation based precoding algorithm maximize achievable rate any given...

Summary In this study, four polyphenols (tea polyphenol, procyanidin, anthocyanin and gallic acid) were applied to crosslink with gelatin (G), in order explore the crosslinking mechanisms of polyphenol–gelatin hydrogels desirable properties its potential applications. The results showed that effect was affected by pH types concentration polyphenols. network on microscopic level ordered 0.075% polyphenol (anthocyanin, tea procyanidin). hydrogel exhibited highest system stability best...

Although previous research has found that workplace friendship beneficial effects on employees' and organisations' consequences, knowledge regarding the complexity dark sides of is limited. Our purpose to develop test a three-way interaction model explains when how negative outcomes are likely unfold considering both individual personality contextual conditions. Based stressor-emotion model, we argue may also be stressor due its conflicting contradictory dual roles, which in turn triggers...

This research examines the impact of entrepreneurship education on entrepreneurial intention based mediating role self-efficacy (ESE) in context China. Our results indicated that has positive students' and among three types benefits is different. Learning inspiration through ESE, while incubation resources have direct intention.

This research examines the impact of perceived social environment on entrepreneurial intention based mediating role self-efficacy (ESE) in context China. Our results indicated that have positive students' and among two specific is different. Inspiration has through ESE, while incubation resources direct intention.

In the vocational education of socialism with Chinese characteristics, it is necessary to cultivate high quality technical and skilled talents implement fundamental task "cultivating virtues cultivating people". Education as foundation, moral first, ideological political into implementation education, achieve full, all-round role education. Secondary plays a in has great influence on continuous However, schools, development theory course some problems, such teachers, students, parents'...