The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Facing computational complexity when modeling network reliability by means of parametric models and corresponding statistical methods, in the present study, we apply nonparametric statistical methods, such as the Kaplan-Meier survival probability estimator and the mean cumulative function, to characterize the dynamic properties (in particular, the stability properties) of the Internet routing paths...
This paper investigates the issues related to the link quality estimation and routing performance in highly dynamic WBSNs, where the inherent body mobility introduces frequent time and space variations in the observed link reliability and network connectivity. A new Opportunistic and Mobility Aware Routing (OMAR) protocol is proposed, which optimizes the routing process by taking benefit from captured...
Diversified applications of wireless sensor networks demand reliable data transmission, which generally experiences limited performance owing to the inherent resource constraints of sensor nodes. Estimated round trip time is one of the prominent aspects of reliable transmissions that possesses a potential to enhance the performance sustaining the resource constraints. Therefore, we have already proposed...
The lossy nature of wireless communication leads to many challenges in designing multi-hop sensor networks. As an integral part of routing protocols, effective link estimation is essential for reliable communication. In this paper, we conduct a detailed performance analysis of several representatives of link estimators in the interplay with Collection Tree Protocol. The evaluation process has been...
Due to its large scale and constrained communication radius, a wireless sensor network mostly relies on multi-hop transmissions to deliver a data packet along a sequence of nodes. It is of essential importance to measure the forwarding quality of multi-hop paths and such information shall be utilized in designing efficient routing strategies. Existing metrics like ETX, ETF mainly focus on quantifying...
Sensor nodes in Cognitive Sensor Networks (CSNs) can work on different frequency bands (or channels) according to dynamically available wireless resources. This paper proposes a spectrum-aware routing scheme for CSNs, which jointly considers traffic balance, route configuration and power control for reliable end-to-end communications. Bayesian learning method is used to estimate the number of neighboring...
This paper present a novel packet delivery mechanism only using local information for probabilistic non-dominated guarantee of high data confidentiality and reliability in wireless sensor networks. In the data confidentiality domain, a secret message is transformed into multiple shares by secret sharing schemes and then forwarding towards destination via multiple neighbours so that even if a small...
Wireless sensor networks are limited in energy. Any routing protocol used in wireless sensor networks should take into consideration the time sensitive nature of the traffic in such networks, along with the amount of energy left for each sensor. In this paper we present an energy aware packet delivery mechanism for probabilistic quality of service (QoS) guarantee in wireless sensor networks. Each...
Link estimation is a basic element of routing in low-power wireless networks, and data-driven link estimation using unicast MAC feedback has been shown to outperform broadcast- beacon based link estimation. Nonetheless, little is known about the impact that different data-driven link estimation methods have on routing behaviors. To address this issue, we classify existing data- driven link estimation...
The lossy nature of wireless communication leads to many challenges while designing multihop networks. As an integral part of reliable communication in wireless networks, effective link estimation is essential for routing protocols. Recent studies have shown that link reliability-based metrics like ETX have better performance than traditional metrics such as hop count or latency. Usually, such metrics...
With the advent of concept of trustworthy networks, discussions on its supporting technologies have become a new focus of research. This paper proposes a new trust mechanism for the routing systems of trustworthy networks. Presently, study of trust is mostly based on the trust of "hard" security. While behavior trust is classified into the category of "soft" security. This paper...
Multi-path routing scheme can guarantee the probability of successful packet delivery in mobile ad hoc networks (MANET), network reliability can also be enhanced. A novel adaptive multi-path routing protocol with the maximum path lifetime is proposed. By calculating the lifetime of links without the aid of positioning equipments and extra control messages, the partial-disjoint multi-path can be established...
A ubiquitous mixed reality system based on ldquoexperience contentsrdquo is presented. The 3D contents provided for users are associated with Korean ancient military weapons such as the turtle ship and the fire wagon, and overlaid on the real images captured by a UMPC camera while looking at the particular weapon displayed in the science museum. For an exact registration of the virtually modeled objects...
Networks on chips (NoCs) provide a mechanism for handling complex communications in the next generation of integrated circuits. At the same time, lower yield in nano-technology, makes self repair communication channels a necessity in design of digital systems. This paper proposes a reliable NoC architecture based on specific application mapped onto an NoC. This architecture is capable of recovering...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.