denial of service in wireless sensor networks

... Fang, Multiconstrained QoS multipath routing in wireless sensor networks, ” ACM Wireless Networks, vol... of the 2nd ACM International Workshop on Wireless Sensor Networks and ... Multi-Path routing (MCMP) addresses the issue of multi-constrained QoS in wireless sensor networks by mapping a path-based model into a probabilistic routing scheme. Using the work done in [21]asbenchmark,weproposedin[22] ... allowing high energy savings in wireless sensor networks, their deployment in multi-path settings is irrelevant in order to avoid the routing instability which might result from some packets of

Ngày tải lên: 21/06/2014, 17:20

... QUALITY OF SERVICE IN WIRELESS NETWORKS Stefan Chevul 2006:11 On Application-Perceived Quality of Service in Wireless Networks Stefan Chevul On Application-Perceived Quality of Service in Wireless ... Blekinge Institute of Technology Licentiate Dissertation Series No. 2006:11 School of Engineering ON APPLICATION-PERCEIVED QUALITY OF SERVICE IN WIRELESS NETWORKS Stefan Chevul Wireless ... Engineering Blekinge Institute of Technology SWEDEN © 2006 Stefan Chevul Department of Telecommunication Systems School of Engineering Publisher: Blekinge Institute of Technology Printed by Kaserntryckeriet,

Ngày tải lên: 18/10/2013, 12:15

... taken in sensor information and networking architecture (SINA) [24], in TinyDB [65]ontop of TinyOS, and in Cougar [66]. In SINA, database queries are injected to network as sensor querying and ... migration as binary code is possible in BetrhaOS and in MultimodAI NeTworks of In- situ Sensors (MANTIS) OS (MOS) [25]. BerthaOS allows the in- network initiation of transfers and checks the code integrity ... to- wards the service provider based on group advertisements. A Bluetooth terminal maintains information about its services in an SDP server. Searching and querying for existing services are performed

Ngày tải lên: 23/06/2014, 00:20

... Classification of routing protocols in WSN Routing protocols in wireless sensor networks (WSNs) are a set of rules, algorithms, and procedures designed to manage and determine routing paths for ... word: wireless sensor network, variant of leach protocol, leach protcol, energyefficient protocols Introduction Wireless Sensor Networks (WSNs) [1] are systems composed of a large number of sensor ... other via a wireless medium and collaborate to perform a certain taks [3] Figure Basic components of a sensor node The architecture of a sensor node in Figure consists of main parts: Sensing Unit:

Ngày tải lên: 13/10/2023, 19:28

... position estimation in wireless sensor networks, ” in Proceedings of the 4th International Symposium on Information Processing in Sensor Networks (IPSN ’05), pp 324–331, April 2005 A Srinivasan, J Teitelbaum, ... statistical methods for securing wireless localization in sensor networks, ” in Proceedings of the 4th International Symposium on Information Processing in Sensor Networks (IPSN ’05), pp 91–98, ... 2005 D Liu, P Ning, and W K Du, “Attack-resistant location estimation in sensor networks, ” in Proceedings of the 4th International Symposium on Information Processing in Sensor Networks (IPSN

Ngày tải lên: 21/06/2014, 11:20

... Mitra, “Boundary estimation in sensor networks: theory and methods,” in Proceedings of the 2nd International Workshop on Information Processing in Sensor Networks, pp 80–95, Palo Alto, ... in terms of the confidence interval of the results obtained with the proposed framework. The problem of edge detection is also well known in the realm of image processing, where it may be of interest ... combinations of the values of p (in case (a)), p (in case (b)), and the sensor SNR are considered. noise intensity p and very high values of the sensor SNR (e.g., SNR sensor = 10 dB), for increasing

Ngày tải lên: 21/06/2014, 17:20

... tracking is one of the key motivating applications of wireless sensor networks [4–8] Passive acoustic sensor is often used in wireless sensor networks because of its universality and low cost In ... Tracking Framework in Wireless Sensor Networks Zhijun Yu, Jianming Wei, and Haitao Liu Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, No 865, Changning ... on Wireless Sensor Networks and Applications, pp 88–97, 2002 [3] M.-F Wang, L.-L Ci, P Zhan, and Y.-J Xu, “Design issues of wireless sensor networks in ubiquitous learning,” in Proceedings of

Ngày tải lên: 21/06/2014, 20:20

... suitability of several Bayesian filtering techniques for the problem of tracking a moving device by a set of wireless sensor nodes in indoor environments. In particular, we consider a setup where ... different types can be incorporated into a single filtering algorithm. In [9], authors tracked moving objects using various kinds of Bayesian filters. From the wide range of wireless technologies available ... experimental setup where the wireless sensor network was deployed. Additionally, statistical analysis of the real data is provided, reinforcing the idea that in this kind of ranging measurements, the

Ngày tải lên: 21/06/2014, 23:20

... continuous data dissemination in wireless sensor networks, ” in Proceedings of the 1st International Conference on Intelligent Sensors, Sensor Networks and Information... Work In this ... reach the sink with minimal routing overhead. 3. Modes of Operation for Updating Status Information We propose various modes of operation for updating status information of the sensor nodes in the ... Control centre Sensor node Sensor field Mobile sink (gateway) Event area Figure 1: Wireless Sensor Networks. problems of multihop wireless sensor networks, the design of a routing protocol, which

Ngày tải lên: 21/06/2014, 23:20

... enhancing hop-count positioning in sensor networks using multiple coordinates,” to appear in Ad Hoc and Sensor Wireless. .. Urpi, “GPS free coordinate assignment and routing in wireless ... vector routing: scalable point-to-point in wireless sensornets,” in Proceedings of the 2nd... of landmarks increases spaced or randomly) This is an important result for energyconstrained network ... node densities. For instance, we confirm the results obtained in JumPS [16], showing that increasing the number of landmarks increases the accuracy of the underlying coordinate system. However,

Ngày tải lên: 22/06/2014, 00:20

... dominating set of G. Since CDS + is a CDS of SET + ,allnodesinSET + are domi- nated by CDS + . Also, since all nodes in V −SET + are covered by COV, SET 0 = COV ∪CDS + is a dominating set of ... routing in wireless ad hoc networks? ??part I: energy model,” in Proceedings of. .. must exist another dominator node u in N(v) to connect the original dominating set, a spanning tree rooted ... hoc networks, ” in Proceedings of the 21st Annual Joint Conference of the... D G D E I C F A E I C H H (g) (h) Figure 9: Finding a BACDS in the network in Figure 6(a) (a) SET+ and SET− in

Ngày tải lên: 22/06/2014, 19:20

... “Optimizing data replication for expanding ring-based queries in wireless sensor networks, ” in Proceedings of the 4th International Symposium on Model- ing and Optimization in Mobile, Ad Hoc, and Wireless ... main- tain copies of data objects of interest using replication, which can help to reduce the average length of the routing path. Literature [7] discussed data dissemination in a scenario of ... [8] considered the problem of optimizing the number of replicas for event information in wireless sen- sor networks, when queries are disseminated using expand- ing rings. The authors also derived

Ngày tải lên: 22/06/2014, 19:20

... i s of interest in applications where the steady state value of synchronization is used in or- der to infer the status of the process monitored by the sensor [8, 9, 20]. Proof. The proof of part ... interesting remark is that reciprocity of fading plays here a key role as it did in the proof of Theorem 1 for the case of fixed topology. Reciprocity of fading translates into bidirectionality of ... properties of the associated graph, as proved in Theorem 1. 3.4. Effect of fading: an example In this section, the effect of fading on the rate of conver- gence v is investigated via simulation for linear,

Ngày tải lên: 22/06/2014, 19:20

... Last- Src indicates the beginning and ending points of MA’s data gathering. RoundIdx is the index of current round. The value is initially set to 1 by the sink in the first round, and will be incremented ... degree in electrical engineering from Korea Advanced Institute of Science, and Doctor of Engineering degree in Computer Science... Beijing, China, 2004 L M Feeney and M Nilsson, “Investigating ... region. A moni- toring node becomes a sink, creating attributes of interest specifying a particular kind of data. The interest is propa- gated over the network towards sensor nodes in the specified

Ngày tải lên: 22/06/2014, 23:20

... Collection System for use in Wireless Sensor Networks. Major Professor: Yao Liang. One of the most common goals of a wireless sensor network is to collect sensor data. The goal of this thesis is to ... for use in Wireless Sensor Networks Master of Science Newlyn S. Erratt 11/1/2012 A COMPRESSED DATA COLLECTION SYSTEM FOR USE IN WIRELESS SENSOR NETWORKS A Thesis Submitted to the Faculty of Purdue ... deploying data collection sensor networks. There are numerous challenges asso- ciated with deploying a wireless sensor network for collection of sensor data; among these challenges are reducing

Ngày tải lên: 24/08/2014, 12:25

... 6.5 Sink mobility in real-time networks. .. “Learningenforced time domain routing to mobile sinks in wireless sensor fields” In Proceedings of the 29th IEEE International Conference ... partitioning-based scheduling (PBS) algorithm for sink mobility In PBS, the locations of all sensors are known a priori Sensors are partitioned into groups, called bins, such that sensors in ... Chapter 6 Sink Mobility in Wireless Sensor Networks Xu Li, Amiya Nayak, and Ivan Stojmenovic School of Information Technology and Engineering University of Ottawa, Canada Abstract Data gathering is

Ngày tải lên: 14/04/2015, 13:26

... identification of sensor nodes. Further, we model any increase in source information about the event features as a corresponding increase in the reporting rate, f, of sen- sor nodes. The reporting rate of ... level monitoring in sensor nodes. Any sensor node whose routing buffer overflows due to excessive incoming packets is said to be congested and it informs the sink of the same. The details of this mechanism ... reliable retasking/ reprogramming in WSN. PSFQ is based on slowly injecting packets into the network, but performing aggressive hop-by- hop recovery in case of packet loss. The pump operation in PSFQ

Ngày tải lên: 14/04/2015, 14:34

... depending on the type of application the sensors are used for or where it is situated. The types of topologies used for sensor networks include star, mesh, star-mesh etc. [2] In Wireless sensor ... routing beacons or reprogramming of the complete network. Given that sensor networks usually compose of nodes that are not physically protected in certain environments, these networks contain ... Heinzelman, W. B. (n.d.). Wireless sensor network protocols. Department of Electrical and Computer Engineering University of Rochester, International Journal of Computer Science & Engineering...

Ngày tải lên: 05/03/2014, 23:20

... PROBLEM IN WSN In the preceding discussions, we introduced the notion of event-to-sink reliability in WSN and pointed out the inapplica- bility of existing transport solutions. Before proceeding ... Ken Byers Distinguished Chair Professor of the School of Electrical and Computer Engineering, and Director of the Broadband and Wireless Networking Laboratory, Georgia Institute of Technology, ... Atlanta. His current research interests are in sensor networks and next-generation wireless networks. He is the Editor -in- Chief of Computer Networks (Elsevier) and of Ad Hoc Networks Journal (Elsevier). Dr....

Ngày tải lên: 16/03/2014, 19:20

... 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 University, Beijing ... designed in [10–12]. The optimal trade-off between the number of active sensors and the quantization bit rate of each sensor is investigated u nd e r total energy constraint in [13]. In binary 2 symmetrical ... Furthermore, since the estimation quality of the first stage is available, we use BLUE to obtain ˆ θ for exploiting the quality information instead of using the MLE in the M-step as in the standard...

Ngày tải lên: 18/06/2014, 22:20