大数据时代下5G规划方法分析

大数据时代的到来下,对数据信息的传输容量、传输速率等提出更高的需求。在通信技术与行业发展的深度融合下,5G通信网络的建设,可进一步实现数据信息的高效率整合,为数字化产业的建设及发展提供技术支撑。基于此,文章以大数据时代为背景,分析出5G基站规划难点,并对相关规划方法进行研究。     

5G通信技术在数据中心消防系统中的应用分析

在数据中心消防系统应用场景中,设备设施以固定装置为主,在目前以“智慧消防”为发展方向的背景下,如何利用5G通信技术提升老旧设备的消防效能,如何融入5G技术设计新的消防设备是需要研究的课题。文章对5G通信技术在数据中心消防系统的场景中如何应用进行了分析和探讨。     

Large-scale channel characterization at 28 GHz on a university campus in the United Arab Emirates

Telecommunication Systems - Millimeter wave (mm-wave) communication is one of the key enabling technologies for meeting the requirements of the fifth generation (5G) wireless communication systems....     

关于5G时代媒体融合视域下的主流媒体传播方式研究

目前社会已经进入到5G融媒体时代,虽然传统媒体在内容制作和权威上仍有优势,但仍有十分迫切的变革需求,基于此,讨论5G时代媒体融合主流媒体发展原则,并研究5G时代媒体融合视域下主流媒体正确的传播方式,促进在传播链条中不断融入科技基因,构建媒体传播的新格局。     

5G时代背景下移动端网络广告发展新思路

随着我国经济以及科技的高速发展,我国已经完成了4G通信逐渐向5G时代的飞跃,同时,我国的无线移动通信技术也领先于世界水平,互联网技术极大地改变了人们的生活以及生产,网络广告的发展也有了新的思路和模式。本文探究了5G时代的概述,并分析了在5G时代下对移动端网络广告的影响,提出了新形势下,移动端网络广告发展的策略,以便强化移动端网络广告的发展水平。     

Shared hardware,high throughput implementation of 2D 4 × 4 and 8 × 8 integer transform for H.264/AVC high-profile coders

Two-dimensional discrete cosine transforms are used in the core transformations in all profiles of the H.264/Advanced video coding (AVC) standard. In this paper, implementing the resource sharing of high throughput 4 × 4 and 8 × 8 forward and inverse integer transforms for high definition H.264 is presented. It is shown that the 4 × 4 forward/inverse transform can be obtained from 8 × 8 forward/inverse transform using selective data input and data arrangement at intermediate stages. Fast 8 × 8 forward and inverse transform is implemented using matrix decomposition and matrix operation such as Kronecker product and direct sum. The proposed implementation does not require any transpose memory and has a dual clocked pipeline structure. Compared with existing designs, the gate count is reduced by 27.7% in the proposed design. The maximum operating frequency of the proposed system is approx. 1.3 GHz, while the throughput is 7 G and 18.7 G pixels/s for 4 × 4 and 8 × 8 forward integer transforms, respectively. The proposed design can be used for real time H.264/AVC high definition processing owing to its high throughput and low hardware cost.     

Density Based Fuzzy C Means Clustering to prolong Network Lifetime in Smart Grids

Wireless sensor networks (WSN's) are preferred for industrial applications due to progressive increase of sensor electronics. One such application is deployment of WSN's in smart grids. Smart Grid integrates information and communication techniques with electricity network. Smart grids utilize sophisticated control and monitoring devices for improving the efficiency of the grid. For energy efficient, low cost monitoring and control in smart grid WSN's is treated as a promising technology. Advanced Metering Infrastructure (AMI) is the key technology in the distribution networks of Smart Grid. The AMI is composed of various sensors for metering purpose. The meter data is also useful for the distribution operators to manage the demand response. The network involves smart meters, smart electric gas and water meters along with digital network management appliances for optimizing the electric network with real time data management. The smart sensors are limited in terms of battery, operational power and memory. These sensors communicate with the base station in restricted range. The communication between smart grid nodes and base station (sink) is multi-hop in nature. The communication takes place within limited range of communication so the security concerns that are involved in the network are to be handled by the routing protocols. So as to make the bidirectional communication efficient between the smart sensors and utility an effective routing scheme is required for these energy limited devices to handle the heavy network traffic in smart grids. Here energy efficient routing for WSN's in NAN networks to attain load balancing is proposed through density based Fuzzy C means clustering (DFCM). The obtained simulation results show that DFCM can provide a satisfactory performance for enhancing the network life span.

     

Differential current mode serial link for 2 Gb/s in GaAs technology

Today's data communication systems are demanding increasing off-chip data rates. To satisfy this demand, high-speed serial links are used, saving area and power dissipation compared to highly parallel buses. However, power dissipation and noise generated by this system is still a critical issue. In this article, a novel approach using differential current mode is presented, which combines low power dissipation with low noise generated due to the reduced power transmission.     

A 223- $$\mu W$$ μ W single-to-differential RF mixer with 8.6dBm IIP3 using current-bleeding and body-effect for sub-6 GHz 5G applications

Analog Integrated Circuits and Signal Processing - As the 5G era beckons in the world of communication and information technology, there is a surge in demand for battery-operated, mobile wireless...     

Measurements at 2.4, 3.4, 5.2, 28 and 60 GHz for Device-to-Device Wireless Communications

Wireless Personal Communications - Wireless communication networks with increased demand for higher speed in data transfer have paved way for device-to-device (D2D) wireless communications. This...     

SLLR‐MDIC: Spatial log‐likelihood multiuser detection and interference cancelation scheme for OFDM‐IDMA

Wireless communication systems have gained huge attraction from research community, industrial, and academic field due to their significant impact on improving the communication efficiency, ease of deployment, and cost‐effective solution for real‐time communication. In this field of wireless communication, cellular communications have grown rapidly due to their daily usages and advantages. This increased demand of cellular communication systems has led to the evolution of 3G, 4G, and 5G communication systems, which in turn demands for higher efficiency and better bandwidth utilization. Due to heavy usage of network communication, multiple users may cause interference which subsequently may lead to the performance degradation which could be addressed using multiuser detection scheme. However, several schemes have been introduced for improving the system performance, but multiple access (MA) still remains a challenging task. Hence, in this work, we present a novel approach called Spatial Log‐Likelihood Multiuser Detection and Interference Cancelation (SLLR‐MDIC) that uses interleaving division multiple access (IDMA) to improve the communication and developed a multiuser detection approach using spatial log‐likelihood ratios. Further, we have developed orthogonal frequency‐division multiple access (OFDM)–IDMA‐based interference cancelation scheme in multiple access to improve the performance using rake receiver based approach. The performance of SLLR‐MDIC scheme is compared with existing techniques of multiuser detection in terms of bit‐error rate (BER) and symbol error rate (SER). The experimental analysis shows that proposed approach achieves improved performance when compared with existing techniques.     

Seamless Health Monitoring Using 5G NR for Internet of Medical Things

Nowadays, information and communication technology grows rapidly. The microelectronics and communication mediums also enhance their reachability of coverage and connectivity. 5G enhances the capacity of the network in terms of lowest communication latency, highest speed, enhanced throughput, minimum E2E delay, and minimizing the packet loss. In this paper, we discuss the working principle and key features of 5G communication technology along with the limitations of existing technologies. Further, we provide the taxonomy of the 5G network. Moreover, we provide a comparison of 5G and 4G LTE in terms of data privacy and security aspects. Further, we propose a four-layer architecture for ehealthcare system, which uses 5G NR (New Radio) architecture incorporating the control plane and user plane. We perform the simulation over the frequency range1 and frequency range2 and calculated the throughput and latency for distinct values of OFDM numerologies. Further, we provide a comparative analysis for 4G and 5G and deduce that 5G facilitates 10 times lower latency than 4G, and 5G can accommodate a much higher number of devices than 4G. In this work, we discuss providing better healthcare facilities electronically using 5G NR. Moreover, the data sharing and diagnosing the disease become faster and easier by using 5G NR.

     

Development for 4th generation mobile communications

The great success of the i‐mode service shows that data communication services are becoming accepted in the mobile communication world. Multimedia mobile communication services will be provided by 3rd generation IMT‐2000 systems next year in Japan. Thus, the time has come to begin the research and development for 4th generation (4G) mobile communication systems. There exist many difficult issues for 4G systems, such as frequency resources, additional investment, higher speed wireless transmission technology and so on. Furthermore, a new concept must be discussed for 4G before solving these issues. This paper briefly presents current conditions of cellular systems and the development of IMT‐2000 in Japan. The concept and problems of the 4G system are then described along with new technologies that will be useful in solving technical problems. Copyright © 2001 John Wiley & Sons, Ltd.     

Design of Metamaterial Antenna for 2.4 GHz WiFi Applications

Wireless Personal Communications - In this paper, Antenna is an evergreen field of research because of its never-ending demand in the modern communication era. In this paper metamaterial antenna is...     

Spectrum for 5G Services

Wireless Personal Communications - The unprecedented growth in mobile data traffic has choked network capacity of existing IMT/IMT-A (3G/4G) networks. Work on next generation mobile communication...     

第四代移动通信系统的调制技术

现有通信系统的调制技术限制了信号速率的进一步提高,即将推出的第四代(4G)移动通信系统需要更优良的调制技术。正交频分复用(OFDM)技术是很受欢迎的高速率无线通信技术,结合OFDM的调制技术将在4G系统中得到广泛应用。文中概要介绍了4G系统的特点及关键技术,然后系统介绍了OFDM多载波原理,最后重点介绍了多载波码分多址(MC-CDMA)和正交频分复用时分多址(OFDM-TDMA)两种多载波调制(MCM)技术。     

大数据技术在5G网络通信中的应用及前景分析

现代通信活动要求提升速率、保证稳定性,这在客观上催生了5G网络通信技术,也为一些辅助性技术的应用提供了空间,如大数据技术。文中简述了5G网络通信、大数据技术的概念,在此基础上以物联网为例,探讨了大数据技术在5G网络通信中的具体应用,最后展望了其发展前景,以进一步服务技术的应用,提升5G网络通信质量。     

基于时延感知的5G通信链路映射算法

现有5G通信算法存在兼容性差,误码率高等问题,导致数据传输频谱效率和峰值速率较低。因此提出基于时延感知的5G通信链路映射算法。该算法通过线性预编码技术传输数据,对数据预先处理,进而设计5G通信链路的层映射模式,完成数据到端口的处理,最后基于时延感知优化映射算法感知层,实现对5G通信链路映射算法的优化。实验结果表明,与传统算法相比,数据传输的频谱效率和峰值速率均有所提升,总体数据传输效果提升19.8%。由此可见,基于时延感知的5G通信链路映射算法具有更高效的数据传输效果。     

5G无线网络节能技术研究

5G网络带宽大、流量高、通道数多,基站功耗远超4G基站。高额的电费对公司运营成本带来很大挑战。本论文主要从设备级、站点级和网络级三个方面阐述了5G网络节能技术研究及进展,其中,设备级节能主要采用新材料、新工艺、新技术降低设备能耗,站点级节能技术包括亚帧关断、通道关断、深度休眠等关键技术,网络级节能包括网络协作节能技术和网络架构优化节能技术（C-RAN）等。最后,论文给出了相关技术建议及未来展望。     

大数据技术与5G通信技术的融合应用

随着信息技术的发展,大数据与5G通信技术逐渐融合,在人们的生产、生活中得到了良好的运用,加快了社会经济的发展。据有关调查显示,大数据技术和5G通信技术的结合,加快了技术领域的发展,为通信的高质量发展奠定了良好的基础。文中深入分析了大数据技术和5G通信技术的融合运用,希望给相关人士提供借鉴。