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The cooperation of unmanned platforms needs dynamic networking for the secure group communication. Based on the different security domain of wireless environments, an secure networking protocol with identity protection for cooperation of unmanned platforms are proposed, which consists of a four-party security information exchange protocol for the data transmission between nodes in the dynamic network...
Recently numerous sensing applications from the Internet of Things(IoT), such as traffic monitoring and noise map making, require the expensive installation cost. To handle this challenge, crowd sensing, as a new paradigm, has received extensive concerns. To achieve good service quality, incentive mechanisms are necessary to attract more users to participate in crowd sensing. However, Traditional...
In traditional cognitive radio ad hoc networks (CRAHNs), each unlicensed node senses and attains its own idle frequency channel. Considering that the available channels at different nodes may be different, a dedicated common control channel (CCC) facilitates the exchange of the spectrum availability information of each node, and then forthcoming communication nodes tune to the same frequency channel...
In this paper, a new analytic model is built to derive a closed-form expression of broadcast packet reception rates (PRRs) in IEEE 802.11 based one-dimensional (1-D) mobile ad-hoc networks (MANETs), which is the extension of 1-D MANET analytical model in. Comparing with the existing models, the proposed model accounts for the impact of more factors and network parameters on PRRs such as non-saturated...
Wireless communication is continuing to make inroads into many facets of society and is gradually becoming more and more ubiquitous. While in the past wireless communication (as well as mobility) was largely limited to the first and last transmission hops, today's wireless networks are starting to offer purely wireless, often mobile, and even opportunistically connected operation. The purpose of this...
Vehicular ad-hoc networks (VANETs) are promising for more and more intelligent transportation applications, where information is disseminated over a group of vehicles. VANETs are characterized for its unstable framework, in which the isolated vehicles communicate with others only when the unexpected meetings occur. As a result, some available data dissemination schemes do not work well in VANETs....
Self deployment of nodes in mobile ad hoc networks (MANETs) is a challenging task due to the characteristics of a MANET such as dynamically changing topology, lack of centralized authority, decentralized architecture and heterogeneous nodes. In military applications where the deployed nodes, due to their limited communication ranges and hostile environment, may act selfishly with conflicting individual...
Biological research in agriculture needs a lot of specialized electronic sensors in order to fulfill different goals, like as: climate monitoring, soil and fruit assessment, control of insects and diseases, chemical pollutants, identification and control of weeds, crop tracking, and so on. That research must be supported by consistent biological models able to simulate diverse environmental conditions,...
We propose a new location-based stochastic routing approach that is well-suited for wireless sensor networks deployed for public safety applications such as emergency evacuations or search and rescue operations. We first introduce a new modeling and evaluation framework based on Markov chains for randomized routing. Based on this evaluation framework, we study the load balancing and routing performance...
Although wireless sensor networks (WSN) have been an active field of research for the last so many years, service discovery within WSN has not been considered much by the research community. Service discovery in wireless sensor networks particularly in the context of future ubiquitous computing plays an important role and its significance cannot be underestimated. In this paper, we present a study...
In this paper, we investigate saturation performance of broadcast service in IEEE 802.11 based one-dimensional mobile ad hoc networks (MANETs) under multi-hop environment. Having analyzed the features of the multi-hop broadcast MANETs, for the first time we derive a closed form expression of broadcast packet reception rates, which is one of the important reliability metrics for broadcast communications...
Biological research in agriculture needs a lot of specialised electronic sensors in order to fulfill different goals, like as: climate monitoring, soil and fruit assessment, control of insects and diseases, chemical pollutants, identification and control of weeds, crop tracking, and so on. That research must be supported by consistent biological models able to simulate diverse environmental conditions,...
Ad-hoc sensor networks provide a cheap and scalable technology for constructing pervasive learning assessment systems that are embedded in physical environments. This paper proposes an extension to the QTI assessment standard that supports localized sensor data from sensor networks by incorporating the Sensor-ML notation. This extension can lead to a new class of pervasive learning environments where...
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