本文提出了一種自適應(yīng)的軟頻率復(fù)用（SFR）方案以改善小區(qū)邊緣的目標(biāo) 性能以及整個(gè)小區(qū)的吞吐量。所提出的方案是有效的，靈活的。 具體而言，我們分別分析了連續(xù)的和分布式子載波分配方案，并且使用QoS 動(dòng)態(tài)地調(diào)整子載波功率電平，從而實(shí)現(xiàn)所需的吞吐量。
標(biāo)簽： sfr Interference mitigation ICIC
上傳時(shí)間： 2015-11-23
上傳用戶：wang1234
The concept of smart cities emerged few years ago as a new vision for urban development that aims to integrate multiple information and communication technology (ICT) solutions in a secure fashion to manage a city’s assets. Modern ICT infrastructure and e-services should fuel sustainable growth and quality of life, enabled by a wise and participative management of natural resources to be ensured by citizens and government. The need to build smart cities became a requirement that relies on urban development that should take charge of the new infrastructures for smart cities (broadband infrastructures, wireless sensor NETWORKS, Internet-based networked applications, open data and open platforms) and provide various smart services and enablers in various domains including healthcare, energy, education, environmental management, transportation, mobility and public safety.
標(biāo)簽： Enablers Cities Smart for
上傳時(shí)間： 2020-05-25
上傳用戶：shancjb
4G Americas is an industry trade organization composed of leading telecommunications service providers and manufacturers. The organization's mission is to advocate for and foster the advancement and full capabilities of the LTE mobile broadband technology and its evolution beyond to 5G, throughout the ecosystem's NETWORKS, services, applications and wirelessly connected devices in the Americas. 4G Americas, the voice of 5G for the Americas, is invested in leading 5G development for the Americas and maintaining the current global innovation lead in North America with LTE technology.
標(biāo)簽： Development Caribbean Broadband Markets Mobile
上傳時(shí)間： 2020-05-26
上傳用戶：shancjb
The Internet of Things is considered to be the next big opportunity, and challenge, for the Internet engineering community, users of technology, companies and society as a whole. It involves connecting embedded devices such as sensors, home appliances, weather stations and even toys to Internet Protocol (IP) based NETWORKS. The number of IP-enabled embedded devices is increasing rapidly, and although hard to estimate, will surely outnumber the number of personal computers (PCs) and servers in the future. With the advances made over the past decade in microcontroller,low-power radio, battery and microelectronic technology, the trend in the industry is for smart embedded devices (called smart objects) to become IP-enabled, and an integral part of the latest services on the Internet. These services are no longer cyber, just including data created by humans, but are to become very connected to the physical world around us by including sensor data, the monitoring and control of machines, and other kinds of physical context. We call this latest frontier of the Internet, consisting of wireless low-power embedded devices, the Wireless Embedded Internet. Applications that this new frontier of the Internet enable are critical to the sustainability, efficiency and safety of society and include home and building automation, healthcare, energy efficiency, smart grids and environmental monitoring to name just a few.
標(biāo)簽： Embedded Internet Wireless 6LoWPAN The
上傳時(shí)間： 2020-05-26
上傳用戶：shancjb
A decade ago, I first wrote that people moved, and NETWORKS needed to adapt to the reality that people worked on the go. Of course, in those days, wireless LANs came with a trade-off. Yes, you could use them while moving, but you had to trade a great deal of throughput to get the mobility. Although it was possible to get bits anywhere, even while in motion, those bits came slower. As one of the network engineers I worked with put it, “We’ve installed switched gigabit Ethernet everywhere on campus, so I don’t understand why you’d want to go back to what is a 25-megabit hub.” He un- derestimated the allure of working on the go.
標(biāo)簽： Survival 802.11 Guide
上傳時(shí)間： 2020-05-26
上傳用戶：shancjb
Communication between various devices makes it possible to pro- vide unique and innovative services. Although this interdevice com- munication is a very powerful mechanism, it is also a complex and clumsy mechanism, leading to a lot of complexity in present day systems. This not only makes networking difficult but also limits its flexibility.
標(biāo)簽： Wireless NETWORKS Mobile Hoc Ad
上傳時(shí)間： 2020-05-26
上傳用戶：shancjb
Device-to-device(D2D) communications are now considered as an integral part of future 5G NETWORKS which will enable direct communication between user equipment (UE) without unnecessary routing via the network infrastructure. This architecture will result in higher throughputs than conventional cellular NETWORKS, but with the increased potential for co-channel interference induced by randomly located cellular and D2D UEs.
標(biāo)簽： Device-to-Device Communications Analysis of
上傳時(shí)間： 2020-05-26
上傳用戶：shancjb
Wireless penetration has witnessed explosive growth over the last two decades. Accordingly, wireless devices have become much denser per unit area, resulting in an overcrowded usage of wireless resources. To avoid radio interferences and packet collisions, wireless stations have to exchange control messages to coordinate well. The existing wisdoms of conveying control messages could be classified into three categories: explicit, implicit, or hybrid.
標(biāo)簽： Transmission Attachment NETWORKS Wireless in
上傳時(shí)間： 2020-05-26
上傳用戶：shancjb
The very title of this book is borrowed from the information theory vocabulary, and, quite naturally, it is an outline of this theory that will serve as an introduction. The subject of information theory is the scientific study of communications. To this end it defines a quantitative measurement of the communicated content, i.e. informa- tion, and deals with two operations essential for communication techniques: source coding and channel encoding.
標(biāo)簽： Communication NETWORKS Channel Coding in
上傳時(shí)間： 2020-05-26
上傳用戶：shancjb
The aim of this book, the first of two volumes, is to present selected research that has been undertaken under COST Action IC0902 ‘‘Cognitive Radio and Net- working for Cooperative Coexistence of Heterogeneous Wireless NETWORKS’’ (http://newyork.ing.uniroma1.it/IC0902/). COST (European Cooperation in Sci- ence and Technology) is one of the longest-running European frameworks sup- porting cooperation among scientists and researchers across Europe.
標(biāo)簽： Communication Cognitive
上傳時(shí)間： 2020-05-26
上傳用戶：shancjb
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