a taxonomy for denialofservice attacks in wireless sensor networks

... monitoring, medicine care, and transporta- tion control. Spatial information is crucial for sensor data to be interpreted meaningfully in many domains such as environmental monitoring, smart building ... model for node localization in wireless sensor networks Deyun Gao 1 , Ping Chen 2 , Chuan Heng Foh 3* and Yanchao Niu 1 Abstract In wireless sensor networks (WSNs), location information plays an ... coverage, and achieving traffic load balance. In many monitoring applications, the sensor nodes must be aware its location to explain ‘what hap- pens and where’. While specialized localization...

Ngày tải lên: 20/06/2014, 22:20

... notations that are used to write algorithms in the remaining of the paper. Each sensor node i, including the base station, maintains the following variables. (i) Father i : the father of the sensor ... fact, after a node is captured, what can an attacker do? Since he has the key shared with the base station, he may send wrong information (lectures) to that base station. The latter may have a ... constraints in computing capacity, storage, and energy, have to play an essential role in quasi all domains of human environment. They are primarily dedicated to collect data from physical phenomena...

Ngày tải lên: 21/06/2014, 11:20

... attackers. For instance, the wormhole attack [7]isconductedby two colluding external attackers, and the false position and distance dissemination attack [8] is accomplished by an internal attacker. In ... d 2 n ⎤ ⎥ ⎥ ⎥ ⎥ ⎥ ⎥ ⎥ ⎦ . (2) 3.3. Attack Model. In this paper, we consider an adversarial WSN where a pair of colluding attackers can launch a so- called distance-consistent spoofing attack .In[ 9], the attacker can only ... from infrastructure. Locations of normal sensor nodes are then estimated by interacting with locators to obtain the distance or angle information. Once the location information of at least three noncollinear...

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... mechanism to avoid intensive usage of the shortest path. Assuming sources transmitting data packets at a constant rate, [17] proposes a multipath routing scheme formulated as a linear programming ... by having the paths determination using routing algorithms and packets transportation implemented using a packet forwarding algorithm. In both fixed and wireless networks, the paths determination ... to make roads safer, reduce congestion, help people find the nearest available parking space in an unfamiliar city, achieve routing assistance, or provide early warnings on weather-related road...

Ngày tải lên: 21/06/2014, 17:20

... collision and less idle wait- ing time in backoff procedure. In “Incomplete Game”, access delay performance is far better than “NM”, and comparable with “IBM”, as it can easily adapt the variable game ... P s when they are transmitting a data packet successfully, P f and P f EURASIP Journal on Wireless Communications and Networking 7 Table 4: Simulation parameters. Parameters Values CW min 16 ACK packet ... classified into two categories: complete and incomplete information games. In the complete information game, each player has all the knowledge about others’ characteristics, strategy spaces, payoff...

Ngày tải lên: 21/06/2014, 17:20

... probabilistic data associ- ation. Automatica 11, 451–460 (1975) [13] Y Bar-Shalom, TE Fortmann, Tracking and Data Association (Academic Press, Orlando, 1988) [14] DB Reid, An algorithm for tracking ... Polit ` ecnica de Catalunya (UPC), Barcelona, Spain 2 Department of Geomatics Engineering, University of Calgary in Calgary, Alberta, Canada 3 Centre Tecnol ` ogic de Telecomunicacions de Catalunya (CTTC), Parc ... multipath effect (bias) and LOS/NLOS Bayesian filtering for indoor localization and tracking in wireless sensor networks Anup Dhital 1,2 , Pau Closas ∗3 and Carles Fern ´ andez-Prades 3 1 Universitat...

Ngày tải lên: 21/06/2014, 17:20

... pixel A 4 A 3 A 2 A 1 A 0 Initial address A 10 A 9 A 8 A 7 A 6 A 5 A 4 A 8 A 7 A 6 A 5 A 4 A 3 A 2 A 6 A 5 A 4 A 3 A 2 A 1 A 0 of LL pixel A 3 A 2 A 1 A 0 A 1 A 0 New address of DWT A 9 A 0 A 12 A 11 A 8 A 7 A 6 A 8 A 0 A 10 A 7 A 6 A 5 A 4 A 7 A 0 A 6 A 5 A 4 A 3 A 2 A 6 A 0 A 5 A 4 A 3 A 2 A 1 coefficients ... of DWT A 9 A 0 A 12 A 11 A 8 A 7 A 6 A 8 A 0 A 10 A 7 A 6 A 5 A 4 A 7 A 0 A 6 A 5 A 4 A 3 A 2 A 6 A 0 A 5 A 4 A 3 A 2 A 1 coefficients in STRIP BUFFER A 5 A 4 A 3 A 2 A 10 A 1 A 3 A 2 A 9 A 1 A 8 A 1 (A 12 ∗1024 ) + ( A 11 ∗512 ) + ( A 10 ∗2) ... carried out in parallel for all bit-planes as shown in Figure 12. The SIG information is obtained directly from the STRIP BUFFER whereas the DESC and GDESC information for a coefficient is obtained...

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Ngày tải lên: 24/08/2014, 12:25

... networks or acts as a data storage processing data in a powerful way [3]. It even acts as an access point to human interface for human interaction, and is capable of broadcasting control data in the ... keys and WSN Subversion of a node Passive information gathering Sybil attacks Sinkhole attacks wormhole attacks False node and malicious data International Journal of Computer Science & ... node may use to protect its data allowing only authenticated neighboring nodes to obtain and decrypt this data. All in all, it can be stated that LEAP protocols are very advantageous in that they...

Ngày tải lên: 05/03/2014, 23:20

... operation in PSFQ simply performs con- trolled flooding and requires each intermediate node to create and maintain a data cache to be used for local loss recovery and in- sequence data delivery. Although ... Ramanathan, and A. Sayeed, “Distributed target classifi- cation and tracking in sensor networks, ” Proc. IEEE, vol. 91, no. 8, pp. 1163–1171, Aug. 2003. [2] C. Intanagonwiwat, R. Govindan, and ... Wan, A. T. Campbell, and L. Krishnamurthy, “PSFQ: a reliable transport protocol for wireless sensor networks, ” in Proc. ACM WSNA, Atlanta, GA, Sep. 2002, pp. 1–11. [13] J. Zhao and R. Govindan,...

Ngày tải lên: 16/03/2014, 19:20

... Beijing 100191, China Email: Xin Wang ∗ - athody@vip.sina.com; Chenyang Yang - cyyangbuaa@vip.sina.com; ∗ Corresponding author Abstract We study optimal and suboptimal decentralized estimators in ... orthogonal multiple- access fading channels in wireless sensor networks optimal and suboptimal estimators Xin Wang ∗ 1 and Chenyang Yang 1 1 School of Electronics and Information Engineering, Beihang ... the channel estimates in an optimal way. Under the energy constraint, only a few symbols are beneficial for training channels, while more training symbols will lead to performance degradation....

Ngày tải lên: 18/06/2014, 22:20

... collect information, for example, measuring physical parameters such as temperature and humidity. Since the sensors are usually powered by batteries and have very limited processing and communication ... we regard the MMSE estimator as an unbiased estimate in our suboptimal algorithm and evaluate th e resulting performance loss via si mulations later. The variance of the M M S E estimate can be ... http://en.wikipedia.org/wiki/Mean value theorem 31. X Wang, C Yang, Optimal transmission codebook design in fading channels for decentralized estima- tion in wireless sensor networks. in IEEE International Conference on Acoustics,...

Ngày tải lên: 20/06/2014, 04:20

... nodes in a network agreement on a common measurement, known at any one node as the local state information. As such, it has many relevant applications in wireless sensor networks [1, 2], for example, ... by averaging pair-wise local state information at networknodes .In[ 1], Olfati-Saber et al. established a theoretical framework for the analysis of consensus-based algorithms. In this paper, we ... moving- object acquisition and tracking, habitat monitoring, recon- naissance, and surveillance. In the DAC approach, average consensus can be sufficiently reached within a connected network by averaging...

Ngày tải lên: 21/06/2014, 16:20

... Journal on Wireless Communications and Networking for increasing variability of the communication link quality (i.e., for increasing values of η c ) the performance rapidly degrades. For low values ... is of interest to detect any gas leakage. To this purpose, one may place a linear sensor network surrounding this area: in the example in Figure 1 (a) there are six sensors. (In the remainder ... mon- itorning using random sensor networks, ” in Proceedings of the 2nd International Workshop on Information Processing in Sensor Networks, pp. 582–592, Palo Alto, Calif, USA, April 2003. [3] R. Viswanathan...

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