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Wireless rechargeable sensor networks are becoming crucial and important in recent years for the advancement of wireless energy transmission technology. The previous research shown that not all of sensors can be recharged due to the limitation of energy capacity that mobile chargers can carry. If a sensor playing a critical role in a sensing task cannot function as usual due to the exhausted energy,...
This paper introduces new functionalities for industrial safety applications using the wireless infrastructure of the IEEE 802.11 standard. The new amendments (n/ac/ad) for the 2.4, 5, and 60-GHz-band support additional high data rate modes, for e.g. video applications and device-to-device (D2D) communication. The huge bandwidth in the 60-GHz-band enables precise localization. However, Listen-Before-Talk...
This paper presents the first end-to-end field trial of the U.S. three-tier Citizens Broadband Radio Service (CBRS) with carrier aggregation using commercial 3.5 GHz network elements in a live LTE-A test network. The trial features an assignment of a shared spectrum to an operational LTE base station and demonstrates how it boosts the end user mobile data rate due to extended bandwidth availability...
We propose the concept of a multi-technology wireless network based on the use of a leaky-wave reconfigurable antenna, which operates from 1.7 to 2.7 GHz. The proposed printed antenna provides a frequency-dependent reconfigurable radiation pattern. Numerical analyses and experimental results have been shown in excellent aggrement and demonstrate a fractional bandwidth of 45% and gain maximum of 9...
The mobile hotspot network (MHN) system is a system for high-speed railway communications capable of providing a gigabit-per-second backhaul capacity employing millimeter-wave. This paper provides an overview of MHN enhancement (MHN-E) system that's been developed so far, and also addresses some of the major technical challenges that need to be overcome and discuss several viable technical solutions...
In this paper we introduce WASP, a general communication layer for hybrid wireless networks where multiple networks are used to complement each other. In our system, we capitalize on an infrastructure with a ubiquitous, wide-area network to help enable the creation of a local mobile ad-hoc network in an efficient, scalable, evolvable, and manageable way. In particular, in an architecture inspired...
In this paper, we propose a new media access scheme based on the ARIB STD-T109 designed for ITS communications in order to improve the system performance. The proposed scheme is totally compatible with the conventional scheme corresponding to the ARIB STD-T109 and can reduce the required transmission period per frame and the frame collision rate. By focusing attention on a periodical frame transmission...
We propose a system in which it allows the user to contact or make an alert during any emergency situation to the appropriate service provider directly using this application. Though there are several apps in the market, what makes our application special is that it is completely in our Tamil language. Here the user has to download and install the application along with all the required details. In...
With the ubiquitous usage of mobile devices, most communications are now impacted by the users' mobility. Therefore, applications and services must be designed to cope with network dynamics produced by those mobility patterns. Software research and development would benefit from taking device mobility into account. However, implementing and testing software on real devices is costly and cumbersome...
Network Partition Index (NPI) doesn't address cache management and reliability. Motivated by this observation, Hybrid Spatial Air Index (HSAI) has been proposed for Continuous k-Nearest Neighbor Queries in road networks. HSAI utilized the usages of both Adaptive Cooperative Caching (ACC) and XOR-based network coding. Experiments have been conducted for evaluating query performance and compared Hybrid...
Internet Protocol version 6 (IPv6) is presently gaining demand in almost every region of the world. In near future, IPv6 would be the key area of research and expansion in the internet protocol standards. IPv6 was built with the aim of improving the mobility and communications among these devices. Mobile IPv6 is becoming a highly demanding research area under which a lot of investigations are yet...
This paper proposes an adaptive movable access point (AMAP) system to enhance the system capacity in dense wireless-device environments. In the proposed approach, the positions of access points (APs) are adaptively moved in accordance with clustered user distribution, which is sure to be effective in ununiform user distribution due to dense device environments. In order to derive the appropriate positions...
In telecommunication network systems, there are a large number of interconnected components which also contain many subcomponents. Heavy rain, thunder or other factors can cause mal-function of the components or disconnections between the components which trigger alarms. Because of the interconnection of elements, triggered alarms may propagate to other components. This creates harsh challenges to...
Privacy protection has been in intensive concerns in Location Based Service (LBS). In existing research, tremendous efforts have been brought to obfuscation techniques and developing new anonymity to preserve the location privacy. However, these techniques may either sacrifice the service accuracy or rely on a trusted third party. To deal with this, in this paper, we propose a decentralized data forwarding...
Cooperative Adaptive Cruise Control (CACC) is considered as a key enabling technology to automatically regulate the inter-vehicle distances in a vehicle platooning while maintaining the string stability. Although the cyber and physical parts in the existing CACC systems are integrated in one control framework, the research on realistic modeling and security issues of these systems are still largely...
Due to the massive explosion of social networking and content sharing, it is becoming challenging to transmit a huge amount of multimedia content over wireless mobile networks. The existing paradigm of mobile multimedia sharing has yet to effectively address the energy and bandwidth limitations of wireless devices. Content-Centric Networking (CCN) has been proposed as a possible way to drive the current...
Long Term Evolution Advanced (LTE-A) is the fourth generation (4G) wireless cellular communication standard. A covert channel is a noticeable threat to network security because it is able to transfer data under the overt channel. In this paper, a new class of covert channel coined as SNsteg is proposed, designed for LTE-A system. The SNsteg peculiarly utilizes the feature of Sequence Number (SN) fields...
The effective energy of wireless sensor network is fatal. The research point of this essay is to increase the precision of wireless sensor network, expand effective covering area, effectively decrease energy consumption and achieve network balance. It established high-precision space division and optimized node selection to achieve the energy consumption balance. Through the research, we have found...
Due to rise in vehicular traffic, the existing parking systems are inadequate and are unable to handle the parking loads in major urban centers and cities. Therefore, there is a need and continuous demand of computerized, highly precise, and real time parking device for any city. The existing systems have complex process and have drawbacks in terms of vehicle sensor located in parking lots. Hence,...
Generally the data sensed by the sensors are collected and routed to the sink in a specific manner for further processing. In this proposed work, the sink node is dynamic rather than being mobile. The dynamic sink collects the data from the pervasive environment continuously. The dynamic route (path) to the sink is established, maintained and updated. Finally the comparison is made between the mobile...
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