Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
Currently, there are many research studies which focus on analyzing the performance of Wireless Sensor Networks (WSNs) in several fields such as MAC protocols, routing protocols. In this paper we present an analytical model to evaluate the performance of WSNs based on the RSSI in the application layer. This model utilizes the available RSSI in most popular sensor nodes for analysis and considers the...
Wireless Sensor Network (WSN) is consisting of independent and distributed sensors to monitor physical or environmental conditions, such as temperature, sound, pressure, etc. Routing protocols represent an essential aspect of the performance of mobile wireless networks. This paper presents a comparative analysis between several routing algorithms and their impact on the performance of WSN. The performance...
Recently there has been much focus on Wireless sensor networks (WSN). However Location information is one of the most important information in WSN. Many location estimation algorithms for WSNs have been used to determine the sensor nodes position. In this paper, two different localization algorithms using Trilateration and Multilateration mathematical techniques have studied and compared according...
Linear sensor networks (LSNs) have recently attracted increasing attention due to the vast requirements on the monitoring and surveillance of a structure or area with a linear topology. Being aware that there is little work on the network modeling and analysis based on a duty-cycling MAC protocol for LSNs, in this paper, we model a duty-cycling MAC with a pipelined-scheduling feature for an LSN, where...
Wireless sensor network is an emerging field in wireless networking. Wireless Sensor Node (WSN) is the key component of wireless sensor networks for data communication inn large networks. WSN is powered with battery as its source of energy. It is usually deployed in hostile. Alkaline batteries are dominantly used in WSN. We need to maximize utilization of battery used in WSN. In this paper we have...
A key pre-distribution scheme (KPS) based on multiple codewords of block codes is presented for wireless sensor networks. The connectivity and security of the proposed KPS, quantified in terms of probabilities of sharing common keys for communications of pairs of nodes and their resilience against colluding nodes, are analytically assessed. The analysis is applicable to both linear and nonlinear codes...
This paper presents an analytical model for estimating the network convergence time of IPv6 Routing Protocol for Low-power and Lossy Networks (RPL) in a static chain topology network of IEEE 802.15.4 nodes, in the presence of bit errors. The model presented is validated by extensive simulation results. We show that performance degradation may be noticed by a user for BER values around or greater than...
The human body has an important effect on the performance of on-body wireless communication systems. Given the dynamic and complex nature of the on-body channels, link quality estimation models are crucial in the design of mobility management protocols and power control protocols. In order to achieve a good estimation of link quality in WBSNs, we combine multiple body-related factors into a model...
This paper presents an analytical model for a multi-hop two-dimensional (2-D) network with finite density of nodes communicating with one another by forming an opportunistic large array (OLA). Transmission among these nodes is modeled via Markov Chain, where the wireless channel is considered as a composite lognormal-Rice random process. We approximate the sum distribution of the received power at...
Coverage control is one of the fundamental problems in WSN (wireless sensor network) and determines the ability to monitor the entire WSN system. Based on the Voronoi diagram and the CVT (Centralized Voronoi Tessellation) theory, and combined with the Lloyd's algorithm, we propose a dynamic covering algorithm of WSN to achieve a dynamic coverage among different areas by adjusting the geometric boundaries...
Model-Driven Engineering (MDE) can be considered as the right tool to reduce the complexity of Wireless Sensor Network (WSN) development through its principles of abstraction, separation of concerns, reuse and automation. In this paper we present the results of a systematic mapping study we performed for providing an organized view of existing MDE approaches for designing WSNs. A total number of 780...
Secure communication in Wireless Sensor Networks (WSN) is usually based on symmetric cryptographic approaches, whose robustness relies on an efficient key management protocol. Most of the reported key management protocols follow either a centralized approach where a single node has the authority of distributing the global shared key, or a partially collaborative approach where key distribution is...
Cognitive radio network security has become an important issue affecting the development of cognitive radio technology. Primary user emulation attacks(PUEA) is a common attack in the Cognitive radio network. In the scheme, we choose cooperative spectrum sensing system as our model and soft fusion as our Fusion method. We analyze the impact of PUEA on the system performance in the traditional maximal...
Wireless Sensor Networks (WSNs) have their profound applications almost in all possible fields to facilitate automation. All WSNs contain low powered nodes for sensing information about the environmental conditions and incessant reporting to the base station. Security is a very essential and critical criterion for communication. The nodes must be trust worthy and believable for routing sensed information...
A lot of studies have been done in Received Signal Strength Indication (RSSI) based indoor location for wireless sensor network, and most of them assume that the Path-Loss Exponent (PLE) is a fixed value already known or can be measured by experiment. However, PLE is usually not a fixed value. Analysis and simulation indicate that the PLE has much effect on the distance estimation error under the...
In this paper, the efficiency of different novel misalignment insensitive SCMR systems is examined. The analysis is performed using simulation models. The results are validated with measurements. Also, a new misalignment insensitive SCMR topology that can be printed is also proposed.
Due to the resource-constraint features of LLNs and inherent vulnerabilities of RPL, the security design of deploying Intrusion Detection and Prevention System (IDPS) is widely used. However, IDPS has large energy consumption which is a major concern of LLNs. In order to protect LLNs and save energy resources, we propose an energy-efficient IDPS scheme using game theoretic framework, which analyze...
It is a common topic to apply the fire monitoring and personnel evacuation in fire safety field of inside building. But there are few applying researches on fire safety field of underground building, especially in subway station fire. This paper made a trial application of WSN (Wireless Sensor Network) technology into fire monitoring and personnel evacuation during subway station fire, and built a...
Recent research in wireless power transfer (WPT) using resonant inductive coupling has demonstrated very high efficiencies at large distances compared to the transmitting element dimensions, thereby increasing the number of potential applications of WPT. Since resonant inductive coupling is a very multidisciplinary field of research, different approaches have been proposed to predict the behaviour...
This paper considers the cluster-head failure detection problem in WSNs and proposes a Cooperative cLuster-heAd failuRE deTection (CLARET) mechanism to accurately detect the failure status of a cluster head. The proposed CLARET mechanism allows the cluster head of a cluster to periodically broadcast a “heartbeat” message to all its members and each cluster member to independently detect the status...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.