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The Internet of Things (IoT) is the paradigm of inter connecting heterogeneous devices which are distributed globally and will be a part of the future Internet. Wireless Sensor Networks (WSN) are one of the integral classes of networks in the IoT. One of the major challenges to achieve IoT is to integrate and manage large heterogeneous networks. Autonomic network management system is the need of the...
In this paper, based on requirements of wireless Mesh network Multi-service and high speed, Is proposed based on more access control technology and the QoS control technology of new wireless resource allocation methods of the upward, To better solve the uplink bandwidths business concurrently, And both to delay and bandwidth requirements, improving the bandwidth of the system. Finally, simulation...
Automotive networking on US highways is moving into high gear. Smart cars, connected vehicles, intelligent transportation systems (ITS), vehicular ad-hoc networks (VANET), and vehicle telematics represent parallel and overlapping technologies and services that will define the future of the American roadway systems. The integration of computing technology and expanding communication services is driving...
The WWAN/WLAN two-hop-relay system integrates two types of wireless technologies to improve wireless access throughput and coverage. However, it is unreasonable to assume that all nodes are selfless and willing to relay for other users without an incentive. In this paper, a reputation management framework for Hybrid Wireless Relay Networks is presented. Based on this framework, we show how to collect...
To streamline the development of protocols and applications for wireless sensor networks with mobile elements, we propose the use of a virtual mobility overlay (ViMobiO). Using an idea from mobile ad hoc network research, physical nodes are seen as possible locations of logical nodes, whose motion is simulated with a state transfer between physical nodes. To maximize flexibility, state transfers are...
Providing security and privacy to users are critical in wireless mesh networks (WMNs). In this paper, a distributed security architecture is introduced to manage the mesh clients and a secure routing scheme that preserves the privacy of the end-users is proposed. In order to maximize routing efficiency, key indexing is used and symmetric cipher is employed in most part of the proposed scheme to reduce...
This paper proposes a cross-layer service discovery architecture for wireless mesh networks where wireless mesh routers dynamically establish a virtual backbone. The mesh nodes use an automatic reorganization mechanism to be adaptive to the current network structure and stability. If the network is unstable, the mesh nodes operate in ad-hoc mode and use service discovery messages which are encapsulated...
Because of its flexible advantages, ad hoc networks had a good prospect in forest fire, flood control and other atrocious environment. However, its secure problem becomes a hot spot in current networks security research, and building a proper trust management in ad hoc is a chief scheme. The paper first investigates the character of ad hoc networks and security challenge of it, after introducing the...
The advances on wireless mesh networks are shifting the communications paradigm, where users can benefit from their cooperation to exchange information and make use of the spectrum space, forming wireless neighbourhood communities where resources are shared and services are distributed. This paper presents a modular cross-layer community management architecture, which considers that communities are...
In order to establish and maintain a quality of service (QoS) framework in wireless network, a major requirement is to prolong network lifetime, with simultaneous preservation of other major requirements like coverage, connectivity and adequate resources. In this work an approach is proposed which on a periodic basis it schedules the interfaces into active and inactive phases by using a layered state...
Mobile ad hoc networks (MANETs) are spontaneously formed with a set of wireless nodes without any existing infrastructure or administrative support. The intrinsic characteristics of these networks such as the dynamic topology and the scarcity of resources mainly bandwidth and nodes battery life make network management process a challenging task. In this paper, we present the design and a performance...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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