The parameters of physical layer radio frame for 5th generation (5G) mobile cellular systems are expected to be flexibly configured cope with diverse requirements different scenarios and services. This paper presents a structure design, which is specifically targeting Internet Things (IoT) provision in 5G wireless communication systems. We design suitable numerology support the typical characteristics, that is, massive connection density small bursty packet transmissions constraint low-cost...

Filtered orthogonal frequency division multiplexing (F-OFDM) system is a promising waveform for 5G and beyond to enable the multi-service spectrum efficient network slicing. However, performance F-OFDM systems has not been systematically analyzed in literature. In this paper, we first establish mathematical model an derive conditions achieve interference-free one-tap channel equalization. practical cases (e.g., insufficient guard interval, asynchronous transmission, so on), analytical...

Flexibly supporting multiple services, each with different communication requirements and frame structure, has been identified as one of the most significant promising characteristics next generation beyond wireless systems. However, integrating structures subcarrier spacing in radio carrier may result inter-service-band-interference (ISBI). In this paper, a framework for multi-service (MS) systems is established based on subband filtered multi-carrier system. The filtering implementations...

A multi-service system is an enabler to flexibly support diverse communication requirements for the next generation wireless communications. In such a system, multiple types of services coexist in one baseband with each service having its optimal frame structure and low out-of-band emission waveforms operating on frequency band reduce ISvcBI. this article, framework established, challenges possible solutions are studied. The implementation both time domains discussed. Two representative SFMC...

We derive the uplink system model for In-band and Guard-band narrowband Internet of Things (NB-IoT). The results reveal that actual channel frequency response (CFR) is not a simple Fourier transform impulse response, due to sampling rate mismatch between NB-IoT user long term evolution (LTE) base station. Consequently, new equalization algorithm proposed based on derived effective CFR. In addition, interference analytically facilitate co-existence LTE signals. This letter provides an example...

The present study aimed to explore the factors responsible for declining students' interest towards chemistry.In this casual comparative study, researchers collected data, through a questionnaire, from 600 science students of different secondary schools government, semi-government, and private sectors Lahore, Pakistan.The data analysis included mean, standard deviation (SD), percentages, correlation, t-test, ANOVA.The results showed that had less in chemistry, problem is more pronounced 10...

Manganese (Mn) is an essential micronutrient for plant growth that involved in the structure of photosynthetic proteins and enzymes. Mn deficiency widespread mainly dry, calcareous, sandy soil, which leads to a significant decrease crop yield. Mn-reducing bacteria promote solubilization minerals, thus increasing availability soil. The present study aimed assess solubilizing ability growth-promoting potential Bacillus spp. strains maize plants with insoluble compounds. Several Mn-solubilizing...

A novel non-data-aided SNR estimation technique for BPSK and QPSK modulations in complex additive white Gaussian noise (AWGN) is proposed. It uses the constant amplitude property of in-phase quadrature components these to achieve an improved performance. Its complexity shown be lower while its accuracy supersedes popular moments-based estimator, approaching closely Cramer-Rao bound.

A low-complexity signal-to-noise ratio (SNR) estimation algorithm for orthogonal frequency division multiplexing (OFDM) systems in frequency-selective fading channels is proposed. The estimator based on a conventional preamble having two identical parts. It uses the correlation of received signal samples to estimate power while noise estimated using difference between samples. Simulation results show that proposed robust channel's selectivity and its attained accuracy reduced complexity make...

To flexibly support diverse communication requirements (e.g., throughput, latency, massive connection, etc.) for the next generation wireless communications, one viable solution is to divide system bandwidth into several service subbands, each a different type of service. In such multi-service (MS) system, has its optimal frame structure while services are isolated by subband filtering. this paper, framework established based on filtered multi-carrier (SFMC) modulation. We consider both...

Universal filtered multi-carrier (UFMC) systems offer flexibility of filtering arbitrary number subcarriers to suppress out band emission while keeping the orthogonality between and robustness transceiver imperfections. Such properties enable it as a promising candidate waveform for Internet Things communications. However, subband may affect system performance capacity in ways. In this paper, we first propose conditions interference-free one-tap equalization corresponding signal model...

Universal filtered multi-carrier (UFMC) systems offer a flexibility of filtering arbitrary number subcarriers to suppress out band (OoB) emission, while keeping the orthogonality between subbands and within one subband. However, subband may affect system performance capacity in ways. In this paper, we first propose conditions for interference-free one-tap equalization corresponding signal model frequency domain multi-user (MU) UFMC system. Based on ideal case, impact is analyzed terms...

This paper presents a signal-to-noise ratio (SNR) estimation algorithm for advanced digital video broadcasting- return channel via satellite (DVB-RCS) systems using adaptive coding and modulation (ACM). Due to the absence of repetitive pilot symbol structure, SNR has be performed fixed preamble data. Moreover, sporadic nature data traffic on link causes variation in interference level from slot and, therefore, done within one duration. Hence, it becomes necessary use combination data-aided...

This paper presents a signal-to-noise ratio (SNR) estimation algorithm for advanced Digital Video Broadcasting-Return Channel via Satellite (DVB-RCS) systems using adaptive coding and modulation (ACM) in the reverse link of broadband satellite systems. Due to absence repetitive pilot symbol structure, SNR has be performed fixed preamble data. Moreover, sporadic nature data traffic on return causes variation interference level from slot and, therefore, done within one duration. Hence, it...

Network slicing has been identified as one of the most important features for 5G and beyond to enable operators utilize networks on an as-a-service basis meet wide range use cases. In physical layer, frequency time resources are split into slices cater services with individual optimal designs, resulting in services/slices having different baseband numerologies (e.g., subcarrier spacing) / or radio (RF) front-end configurations. such a system, multi-service signal multiplexing isolation among...

This letter describes the impact of unknown channel access delay on timeline hybrid automatic repeat request (HARQ) process in 3rd generation partnership project long term evolution (3GPP LTE) system when a relay node (RN) is used for coverage extension machine type communication (MTC) devices. A solution also proposed determination RN operates unlicensed spectrum band. The mechanism expected to help MTC operation typical holes areas such as smart meters located basement buildings.

This paper brings to light the reasoning and principles shaping standardization direction in 3rd Generation Partnership Project (3GPP) regarding provision of low complexity Machine Type Communication (MTC), via Long Term Evolution (LTE) 3GPP. It elaborates 3GPP's approaches suggestions towards addressing physical layer challenges discusses solutions 3GPP proposed specifically relation operation MTC devices coverage extension current cellular networks challenging scenarios MTC. Results...

Purpose This study aims to estimate the determinants of household spending on education and nutrition. Education nutrition are noteworthy elements for human development welfare. Separate estimates being provided male female as gender determines welfare gender-based analysis evaluates aptitude decision power well measures their influential role in Design/methodology/approach Fruits, milk dairy products taken proxy substantial portion The used primary urban household-level data that collected...

We propose channel estimation algorithms and pilot signal optimization for the universal filtered multi-carrier (UFMC) system based on comb-type pattern. By considering least square linear interpolation (LSLI), discrete Fourier transform (DFT), minimum mean error (MMSE) relaxed MMSE (RMMSE) estimators, we formulate signals problem by minimizing MSE subject to power constraint tones. The closed-form optimal solutions are derived LSLI, DFT, RMMSE estimators.

The present study explored the relationship of emotional intelligence and psychological distress with internet addiction. participants were 200 individuals from different universities Islamabad Rawalpindi, who active users in their daily life. A co-relational method was used order to obtain quantitative analysis between three variables. Internet Addiction Test (Young, 1998), Wong Law Emotional Intelligence Scale (Wong et al., 2007) Depression Anxiety Stress Scale-21were used. results...

The aim of this paper is to study the potential improvement in nonlinear channel distortion and link quality estimation based on evolved pilots especially suited for nonlinearities. In contrast constant-envelope specied current DVB-S2 standard, a multilevel pilot design proposed wherein are taken from same constellation as user data. Simulation results indicate that amplier eective signal-to-noise ratio (SNR) at demodulator input can be estimated more accurately higher-order modulation than...

Individual differences have a great significance in learning and educational practice. The present study primarily inspected the relationship among personality traits, academic self-efficacy, self-concept, satisfaction with life meaning students. Moreover, this research also examines impact of traits (extrovert, agreeableness, conscientiousness, emotional stable, openness to experience) on self-concept male female Students from different Universities Islamabad were engaged (N=130). Purposive...