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1.
6G网络将驱动无线网络进入万物智联,但也面临能耗巨大的挑战。提出了构建泛在智简、绿能降碳的6G绿色网络的愿景,并分析了6G绿色网络的关键技术问题,包括网络架构和协议智简技术、先进天线技术、智能资源管理技术和动态关断技术等。介绍了实现6G绿色低碳设备的一系列技术,包括高效芯片技术、高效信号处理技术、高效功放技术以及新型材料技术,并针对6G网络与绿色能源融合技术以及分布式微电网协同技术进行了分析。  相似文献   

2.
本文从分析“5G+4G”无线网络协同建设的背景和必要性出发,指出4G/5G协同建设天然具备的频率、设备、站址等优势;在此基础上剖析了“5G+4G”无线网络覆盖协同、容量协同的关键技术,并提出了协同组网方案,基于这种方案,既能应对当前4G网络容量挑战,又能构筑5G领先竞争优势的无线网络演进基础架构,同时实现降本增效地打造5G精品网络的目标。  相似文献   

3.
随着5G移动通信技术的快速发展,人们已经进入到了移动无线宽带时期,无线网络与有线网络不同,其传输数据采用无线介质,因此为了保障无线网络的全覆盖,需要对无线网络进行优化,从而可以提高无线网络数据传输的可靠性和准确性。文章提出在无线网络优化中引入大数据技术,也即利用K-means算法,挖掘无线网络覆盖的漏洞,从而可以加强这些区域的网络覆盖强度,进一步提高无线网络全覆盖的能力。  相似文献   

4.
GSM网络在我国发展的速度十分迅猛,伴随而来的也有许多问题,其中最为重大的便是增多城市通信热点以及实现对农村网络信号进行全面覆盖,为了达到GSM网络的无缝隙覆盖,确保通话的高质量,对GSM无线网络予以优化势在必行。文章从理论和技术方面对GSM无线网络优化工作进行了研究和探索,在实际的工作中,还要对各种情形进行比较,从而选择合适的优化方案。  相似文献   

5.
LTE绿色节能解决方案   总被引:1,自引:0,他引:1  
文章分析无线通信中网络和基站绿色节能技术的发展,阐述中兴通讯在LTE无线网络中,采用的绿色产品设计,以及设备和网络级的节能解决方案。重点描述通过功放电压调节、OFDM符号关断及智能小区关断等具体基站节能技术来达到降低能耗,节省运营商OPEX的目的。  相似文献   

6.
文章利用CDMA技术的呼吸效应,提出了CDMA无线网络间隔式保覆盖的替换割接技术,并应用于浙江电信一期CDMA移动通信网络建设替换工程中。实践中,进一步发展了间隔式保覆盖替换割接技术,提出了主力基站概念,大大缩短了网络中断时间,避免了异厂家交叉覆盖所带来的干扰,确保了无线网络的平稳过渡。  相似文献   

7.
在人们的生活中无线互联局域网发展越来越快,在范围比较大的区域要使用WLAN进行无线网络全覆盖具有一定的局限性。无线Mesh网络是一种新型的无线网络,覆盖范围大,容量大,效率高。在校园网的无线网络建设中无线Mesh网络发挥着重要的作用。文章对无线Mesh网络技术进行分析,并对无线Mesh网络技术在校园无线网络建设中的应用进行研究。  相似文献   

8.
吕钱浩  毛文勇  朱洁 《移动通信》2009,33(10):86-89
创造节能环保的无线网络对运营商和设备商来说责无旁贷,文章详细介绍了中兴通讯的绿色GSM网络方案。主要从以下几方面进行了阐述:节能技术、散热设计、产品体系与网络配置以及交付与演进。该方案将推动绿色和谐移动网络的构建。  相似文献   

9.
基于TD-LTE(分时长期演进)技术特点,对TD-LTE无线网络规划的流程及主要工作内容进行分析和介绍,在此基础上,结合TD-LTE网络技术特点,详细研究和分析TD-LTE无线网络规划的特点及难点。对影响TD-LTE无线网络覆盖及容量性能的关键因素进行研究,给出各种关键因素与网络规划性能之间的联系,在此基础上给出TD-LTE无线网建设过程中的覆盖规划及容量规划建议。  相似文献   

10.
WCDMA与GSM在空中接口上存在较大差异,WCDMA基于码分多址技术,GSM基于时分多址技术。GSM主要处理语音和低速数据,而WCDMA引入了多种速率的数据业务,根据业务的QoS进行资源控制和分配,因此在无线网络规划方法上,WCDMA与GSM存在较大差异。文章从容量规划、覆盖规划、蜂窝布局、规划流程、网络评估等方面对WCDMA与GSM的无线网络规划进行了比较和分析。  相似文献   

11.
面向绿色无线通信的基站体系结构   总被引:2,自引:1,他引:1  
无线网络的耗能主要来自于基站系统。对无线通信系统中的基站系统结构进行有效地规划和部署,能达到降低能源消耗、实现绿色通信的目的。软件无线电技术的发展为无线基站的绿色演进提供了途径。基于软件无线电技术,文章提出一种可以有效提高通信系统能效、更为绿色环保的基站体系结构,能够更好地实现无线通信系统的绿色演进。  相似文献   

12.
绿色基站解决方案与实现技术   总被引:2,自引:2,他引:0  
基站功耗是无线通信系统功耗的主体。基站绿色节能解决方案是无线网络绿色节能的首要目标。基于绿色基站解决方案涉及基站架构、基站形态、绿色基站节能技术及绿色站点应用等多个方面,文章提出绿色基站解决方案,探求基站节能降耗的有效途径。  相似文献   

13.
无线网状网已经成为无线宽带通信领域的研究热点,但是基于交换技术的无线网状网因为其将整个网络看作是一个IP子网而无法适用于大范围的覆盖。在无线链路中采用协作中继,可以提高无线链路的传输速率及传输可靠性。同时采用基于网络层路由技术的无线网状网技术,可以实现整个无线网状网的频谱效率提升和厂域覆盖。不过,由于标准化、关键技术研究以及产业化推进方面还存在许多问题,使得协作中继技术在无线网状网中的应用面临着巨大挑战。  相似文献   

14.
近年来,随着移动互联网的蓬勃发展和智能终端的快速普及,对无缝网络覆盖和高速数据传输要求日趋增强,超密集异构蜂窝无线网络通过减小小区半径,增加低功率节点数量进行超密集组网,提高无线资源利用率和频谱效率,因而引起了国内外研究学者的广泛关注。然而,超密集异构蜂窝无线网络中愈发密集的网络部署也带来了各种严峻的问题,包括超密集异构蜂窝无线网络中的系统干扰问题、无线信息的安全传输问题、以及网络运营的能量供给问题等。为此,本文首先简单介绍了超密集异构蜂窝无线网络架构,接着从干扰管理、物理层安全和能量效率等方面,深入分析了超密集异构蜂窝无线网络中的关键技术和当前挑战,最后,进一步展望了超密集异构蜂窝无线网络的未来发展。   相似文献   

15.
Orthogonal frequency division multiple access (OFDMA) is a popular and widely accepted multiple access technique to provide high data rate services in a mobile environment in the area of wireless communications. OFDMA can provide better flexibility in allocating the radio spectra by utilizing subcarrier allocations, scheduling, and energy control to obtain multi-dimension diversity gains. Due to its resource allocation flexibility, OFDMA has been widely used as a green air interface technology for the emerging broadband wireless access networks. This paper extensively addresses the integration of green OFDMA to the future air interface technologies, for instance:two-tier cellular, multi radio access technologies (RATs), FemtoCell, and relay networks. The main focus of the paper is to review and analyze the current OFDMA techniques to address the green resource allocation in multiuser diversity, where the critical constraints are the computational complexity, energy efficiency, and the sub-channel assignment. The future trend of OFDMA based networks will aim to maximize the energy efficiency of the exclusive channel assignment through a joint sub-channel and power allocation to accommodate high data traffic networks specially the relay based 5G cellular networks.  相似文献   

16.

As power consumption results in greenhouse gas emissions and energy costs for operators, analyzing power consumption in wireless networks and portable devices is of crutial importance. Due to environmental effects resulted from energy generation and exploitation as well as the cost of surging energy, energy-aware wireless systems attract unprecedented attention. Cognitive Radio (CR) is one of the optimal solutions that allows for energy savings on both the networks and devices. Thus, cognitive radio contributes to increase spectral and energy efficiency as well as reduction in power consumption. In addition, energy consumption of the CR technologies as intelligent technology should be considered to realize the green networks objective. In this article, we look into energy efficiency of the cognitive wireless network paradigms. Moreover, energy efficiency analysis and modelling in these systems are specifically focused on achieving green communications objectives. However, CRs by altering all elements of wireless data communications are considered in this paper, and the energy-efficient operation and energy efficiency enabler perspectives of CRs are also analyzed.

  相似文献   

17.
For wireless sensor networks (WSNs), energy is a scarce resource. Due to limited battery resources, the energy consumption is the critical issue for the transmission as well as reception of the signals in the wireless communication. WSNs are infrastructure-less shared network demanding more energy consumption due to collaborative transmissions. This paper proposes a new cooperative opportunistic four level model for IEEE 802.15.4 wireless personal area network. The average per node energy consumption is observed merely about 0.17 mJ for the cooperative wireless communication which proves the proposed mechanism to be energy efficient. This paper further proposes four levels of cooperative data transmission from source to destination to improve network coverage with energy efficiency.  相似文献   

18.
The evolution of wireless networks has motivated the expansion of the static business environment to a mobile and wireless one. However, current and forthcoming wireless technologies are characterized by different attributes, regarding coverage area, offered bandwidth and delay. The transparent conjunction of various wireless technologies into a single mobile terminal can further boost the wireless explosion. This paper presents the Wireless Convergence Architecture (WCA) that incorporates different wireless interfaces under the same mobile terminal. Depending on the location and the availability of the underlying wireless network, automatic and seamless switching is performed to the most appropriate wireless network interface. Special care is taken to maintain continuous connectivity at the transport layer (TCP). WCA introduces software components both at the terminal and network side. A specific implementation is presented, based on two complementary wireless technologies – in terms of coverage area – an IEEE 802.11-compliant in the short local and a GSM in the wide area. To demonstrate the operational correctness of the architecture, experiments were performed using standard and proprietary networking applications.  相似文献   

19.
Current wireless networks face unprecedented challenges because of the exponentially increasing demand for mobile data and the rapid growth in infrastructure and power consumption. This study investigates the optimal energy efficiency of millimeter wave (mmWave) cellular networks, given that these networks are some of the most promising 5G-enabling technologies. Based on the stochastic geometry, a mathematical framework of coverage probability is proposed and the optimal energy efficiency is obtained with coverage performance constraints. Numerical results show that increasing the base station density damages coverage performance exceeding the threshold. This work demonstrates an essential understanding of the deployment and dynamic control of energy-efficient mmWave cellular networks.  相似文献   

20.
An unprecedented increase in subscribers and demand for high-speed data are considered a critical step towards the new era of mobile wireless networks, i.e., Fifth Generation (5G), where the legacy mobile communication system will still be operational for a long time in the future. This has subsequently increased the overall energy consumption, operational costs and carbon footprint of cellular networks, due to increase the number of base stations (BSs), which consume the most energy. Switching BSs off/on in accordance with the traffic pattern variations is considered an effective method for improving energy efficiency. However, the main concerns from the network operators are the requirements to switched on/off the BSs, coverage issues and secured the radio service for the affected area. Hence, the main focus of this study is to develop an intelligent cooperation management (switch BSs on/off) within a multi-radio access technology (RAT) environment between a future generation 5G into the existing LTE and UMTS cellular network towards green cellular networks, while guaranteeing maximum cells coverage area during a switch off session. Particle swarm optimisation has been adopted in this study to maximize the cell coverage area under the constraints of the transmission power of the BS \((P_{tx})\), the total antenna gain (G), the bandwidth (BW), the signal-to-interference-plus-noise ratio (SINR), and shadow fading \((\sigma )\). Moreover, the modulation and coding scheme, the data rate, and the energy efficiency are considered. The results have shown that by applying the proposed a dynamic multi-RAT BSs switching off\(\backslash \)on strategy according to the traffic load variations, the daily energy savings of up to 42.3% can be achieved, with guaranteed maximum cells coverage area.  相似文献   

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