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The Internet of Things (IoT) enables several heterogeneous devices, sensors, wearables, appliances and many other objects to inter-communicate and provide support for heterogeneous services. An IoT network needs to enable exchange diverse data types including multimedia and sensor data and be capable of handling a large number of IoT objects offering services at high quality levels. This paper proposes...
The past studies on router node placement for wireless mesh networks (WMNs) did not consider placement of Internet gateways. Therefore, mesh routers and mesh clients can only communicate locally. The problem in this paper is to maximize both network connectivity and client coverage for the router node placement in WMNs consisting of mesh routers, mesh clients, and Internet gateways, subject to three...
The electrical engineering approach to cache coherence is defined not only by the study of IPv7, but also by the natural need for A search 12. In fact, few cyberneticists would disagree with the valuation of write-back caches. Grafter, our new algorithm for cacheable configurations, is the solution to all of these problems.
We demonstrate the practical implementation of a schema for Smart Grid Last Mile (SGLM) traffic management in leased Internet access networks, based on well-known queue management and traffic marking algorithms such as Random Early Drop and Token Bucket. Internet access links are often over-provisioned, with much higher installed capacity than user needs, so domestic applications do not compete for...
Energy efficiency in wireless networks is one of the major issues for mobile devices since they rely on their batteries. In this context, the wireless network interface card (WNIC) has to be taken into account carefully as it consumes a significant portion of the overall system energy. In this paper, we aim to reduce the energy consumption of mobile devices in wireless networks by performing specific...
The numbers of MVNOs (Mobile Virtual Network Operator) are growing globally, but so do their operational and business issues. This paper identifies these issues and looks for remedies via the new 4G architecture and interfaces. The paper examines the ‘Full’ MVNO model as a ‘Home’ network in a pseudo roaming scenario (National Roaming), allowing MVNO to connect to multiple MNOs through the discovery...
This paper investigates application of a two-tier wireless network system with integrating wireless access and wireless backhaul as the evolution path of providing rural areas with Internet services. The first tier of the proposed network system is the wireless access network which provides interface to user accessing to Internet and enjoy services such as voice over IP, web browsing, and social network...
The paper proposes a comparison of two communication paradigms, interplanetary and pervasive, through the analysis of problems, solutions and future challenges. The aim is to show that interplanetary communication is performed through peculiar networks, which, on one hand, use most of the pervasive communication paradigm but, on the other hand, own features that allow the extension of the pervasive...
In this paper, we propose a new intersection-based geographical routing protocol, called delay tolerant routing protocol (DTRP) that adapts to the changes in the local topology within city environments. DTRP is based on an effective selection of road intersections through which a packet must pass to reach the gateway to the Internet. The selection, in such delay tolerant VANETs, is made in a way that...
A Vehicle Ad hoc Network (VANET) is composed of vehicles, with short range wireless communication capabilities. Vehicular networks can support both Vehicle-to-Vehicle and Vehicle-to-Infrastructure communications, and are targeted at the delivery of both road safety applications and non-safety applications, including comfort applications. Comfort applications aim to provide information and entertainment...
Quality-of-Service (QoS) is widely employed for describing non-functional characteristics of Web services. Although QoS of Web services has been investigated in a lot of previous works, there is a lack of real-world Web service QoS datasets for validating new QoS based techniques and models of Web services. To study the performance of real-world Web services as well as provide reusable research datasets...
As the widely accepted Internet protocol in Next Generation Internet (NGI), Internet Protocol version 6 (IPv6) has profound advantages in supplying multicast services, such as Video On Demand (VOD), Netmeeting service and so on. But, how to provide faster and safer multicast network is becoming an issue day by day recently. Under this situation, we suggested a new multicast method-integrating IPv6...
In this paper we consider anycast routing for multi-gateway wireless mesh networks to maximize the overall quality of communications. For such networks, anycasting provides an effective mechanism to reduce problems due to congestion and interfence by appropriate selection of gateways, particularly at heavy traffic conditions. However, as proved in this paper, the optimal gateway selection problem...
A modern home could contain a large variety of devices and all of them should be able to work together so as to bring a rich experience to the users. Quality of service (QoS) is a critical factor for measuring user satisfaction. It represents the ability to provide different priorities based on the type of the data flows or to guarantee a certain quality of performance to a particular service. Different...
Wireless mesh networks (WMNs) have attracted increasing attention and deployment as a high-performance and low cost solution to last-mile broadband Internet access. Wireless mesh networks have emerged as a potential technology for next-generation wireless networking. WMNs have been widely accepted in the traditional application sectors of ad hoc networks because of their advantages over other wireless...
Active Queue Management (AQM) algorithm is important to manage buffers and transfer packets for wired/wireless networks. However, the unresponsive flows to the network congestion control is dangerous to the network equilibrium and Quality of Service (QoS), especially from the point of network resource allocation. In some certain scenarios, the limited network resource (buffers) can be occupied by...
Broadband access to the Internet at home was the first step in the emergence of so called Home Networks. In a close future, the number of appliance connected will rise and the network will become the home backbone. This lead us to a mesh architecture, in which routing will be mandatory. This paper introduces a complete system to, first, pilot the forwarding in order to ensure a proper quality of experience;...
In a wireless mesh network (WMN), mesh clients (MCs) access the Internet through the wireless backbone formed by the Internet Gateways (IGWs) and Mesh Routers (MRs). An IGW as the traffic center may easily become the congestion center in a WMN. The load balancing between IGWs will reduce the traffic congestion thereby improving the network performance and providing a better quality of service (QoS)...
Internet is becoming an indispensible infrastructure of essential media, which makes a great burden for ISP's security and traffic management. Especially the situation will be much more serious in NGI (the Next-Generation Internet) because of its innumerable users, mobile device, information appliances (IA) and networked sensors etc with 128-bit IPv6 address. For the reason of lacking scalability,...
There is an increasing acceptance for Wireless Mesh Networks (WMN) as the potential `last-mile' access technology running media-rich applications with stringent quality of service (QoS) requirements. As WMNs are envisioned to provide high bandwidth broadband services to a large community of users, the Internet Gateway which acts as a central point of attachment for the mesh routers is likely to be...
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