range based localization in wireless sensor networks

... θN at a point ofS1, that is, Hθ1, , θN θ ∈S1 min i ∈{1, ,N }distg  θ, θi . (8) We are interested in finding the minimizers ofH Interestingly, the functionH can be rewritten using the notion ... position-based routing performs over the resulting coordinate system (when compared against routing with real coordinates) In summary, the contributions of this paper revolve around two main questions: ... clas-sified as (1) using physical measurements (also known as range-based positioning) or (2) using topological infor-mation (also known as range-free positioning) Examples of measurement-based GPS-less

Ngày tải lên: 22/06/2014, 00:20

... be incorporated in a real wireless vision sensor network REFERENCES [1] M Rahimi, R Baer, O I Iroezi, et al., “Cyclops: in situ im-age sensing and interpretation in wireless sensor networks,” in ... efficient packet discarding pol-icy should consider preceding nodes’ invested energy In the matter, the α  coefficients could evolve based on their sink proximity or, in the same way, in their distance ... compression for sensor networks using correspondence anal-ysis and super-resolution,” in Proceedings of International Con-ference on Image Processing (ICIP ’03), vol 1, pp 597–600, Barcelona, Spain, September

Ngày tải lên: 22/06/2014, 22:20

... statistical methods are proposed, including triangulation and RF-based fingerprinting, to make localization attack-tolerant SPINE [8] is a range-based positioning system that enables verifiable ... the sensors before data collection DRBTS [12] is a distributed reputation-based beacon trust security protocol aimed at providing secure localization in sensor networks Based on a quorum voting ... Introduction Wireless sensor networks (WSNs) [1] have increasingly drawn attentions of researchers in the areas of wireless communication, sensor technology, distributed systems, and embedded computing

Ngày tải lên: 21/06/2014, 11:20

... Architecture Using Strip-Based Processing for Implementation in Wireless Sensor Networks Li Wern Chew, Wai Chong Chia, Li-minn Ang, and Kah Phooi Seng Department of Electrical and Electronic Engineering, ... processing and computation at the sensor nodes has brought wireless sensor networks (WSNs) into a wide range of applications such as environmental monitoring, habitat studies, object tracking, ... fast incorporated in our proposed work Since the recursion of descendant information checking is no longer needed here, the processing time of SPIHT coding significantly reduced The remaining

Ngày tải lên: 21/06/2014, 20:20

... Transmitting the whole pictures taken by individual sensors to a sink node may be overwhelming for the wireless link, or even unnecessary in the case that the sink node needs only the region of interest ... data dissemination in sensor networks [1, 6 12] In a typical client/server-based sensor network, the occurrence of cer-tain events will alert sensors to collect data and send them to a sink node ... context by attribute-based naming Attribute-based naming specifies which sensors are respon-sible for responding queries, and how intermediate sensors perform in network processing Attributes describe

Ngày tải lên: 22/06/2014, 23:20

... CSBD-based schemes to three main categories of sensor networks – Agent-CSBD-based sensor networks, Query-based sensor networks, and Ad-hoc and sparse sensor networks Each category of sensor networks ... 1COMBINATORICS-BASED ENERGY CONSERVATION METHODS IN WIRELESS SENSOR NETWORKS WONG YEW FAI M.Eng., B.Eng,(Hons,), NUS Trang 2COMBINATORICS-BASED ENERGY CONSERVATION METHODS IN WIRELESS SENSOR NETWORKS ... there are only a finite number of points in Finite Geometry A point can only be defined when two lines intersect By the term “line”, a line need not be a straight line or of finite length Trang

Ngày tải lên: 15/09/2015, 22:11

... gathering and coordinating formation spread across sensors’ information processes and software agents Requir-ing these interacting entities to share, all their local information is infeasible sincethis ... items, interested to take part in the auction.2.3.1 Task Allocation in Wireless Sensor Networks The wireless sensor networks (WSNs) are envisioned to observe large environments at close range ... agents with conflicting interests [13–15] We apply gametheory for task allocation in wireless sensor networks (WSNs) where the decisionmakers in the game are the sensor nodes willing to perform the

Ngày tải lên: 30/09/2015, 14:23

... with which sensor s i can reach sensor s j and P min,iis the minimum power that allows the ith sensor to reach the AP According to this definition, the set P icontains the value of the minimum transmit ... of Information Engineering, University of Parma, viale G.P Usberti 181/A, Parma, Italy;E-Mail: luca.consolini@unipr.it 2 Wireless Ad-hoc and Sensor Networks (WASN) Laboratory, Department of Information ... power, as stated in the following definition (for the sake of sim-plicity, we will simply use the term “sensor” to refer to a wireless node with sensing capabilities) two-Definition 1 A sensor is represented

Ngày tải lên: 01/11/2022, 08:30

... data in wireless sensor networks (WSNs) In this article, we developed an automatic auto regressive-integrated moving averagemodeling-based data aggregation scheme in WSNs The main idea behind ... ARIMA modeling-based data aggregation scheme in wireless sensor networks Guorui Li1*and Ying Wang2 Abstract Data aggregation is a very important method to conserve energy by eliminating the inherent ... directly to the sink Lindsey and Raghavendra [10] pro-posed power-efficient data gathering protocol for sensor information systems (PEGASIS) which organizes all sensors into a chain structure and

Ngày tải lên: 01/11/2022, 08:58

... 1MACHINE LEARNING BASED CONGESTION CONTROL IN WIRELESS SENSOR NETWORKSJEAN-YVES SAOSENG NATIONAL UNIVERSITY OF SINGAPORE 2007 Trang 2MACHINE LEARNING BASED CONGESTION CONTROL INWIRELESS SENSOR NETWORKS ... with minimal human intervention Wirelesssensor networks promise a wide range of new applications such as habitat monitoringand target tracking Wireless communication suffers from radio interference, ... learning in cooperative systems 36 4.3 Reinforcement Learning for congestion control 37 4.3.1 Reinforcement Learning of Contention Window Policy (RLCW) 38 4.3.2 Reinforcement Learning

Ngày tải lên: 10/11/2015, 11:29

... shots Indeed, less common are shooter localization systems based on singleton microphones geographically distributed in a wireless sensor network An obvious issue in wireless networks is the sensor ... Department of Information Systems, Division of Informatics, 581 11 Link¨oping, Sweden 2 Link¨oping University, Department of Electrical Engineering, Division of Automatic Control, 581 83 Link¨oping, Sweden ... good starting points for the numerical search are essential One such starting point could, for instance, be the MB estimatexMB Initial shooting direction could be given by assuming, in a sense,

Ngày tải lên: 21/06/2014, 16:20

... 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] as ... reliability and packet delivery in wireless sensor networks while maintaining lower power consumption levels Building upon a previous benchmark, we propose a traffic engineering model that relies on delay, ... processing place Using this scheme, the data captured in Trang 2Internet and satellite Task manager node User Gateway Sink node Sensor field Sensor nodes Figure 1: Sensor nodes scattered in a sensor

Ngày tải lên: 21/06/2014, 17:20

... surrounding this area: in the example in Figure 1(a) there are six sensors (In the remainder of this paper, by “sensor” we will denote the wireless transceiver which includes the sensing element ... also been investigated in scenarios with (i) a common binary phenomenon under Trang 2observation and (ii) bandwidth constraints [10] In [11,12],the authors examine the problem of determining edges ... that obtained in the following A pictorial description of the proposed scenario is given inFigure 1(c) In particular, we investigate the performance when the communication links between the sensors

Ngày tải lên: 21/06/2014, 17:20

... theory in wireless sensor networks,” in Pro-ceedings of the IEEE Wireless Communications and Networking Conference (WCNC ’08), pp 1483–1488, April 2008. [11] L Zhao, J Zhang, and H Zhang, “Using incompletely ... very little work on the incomplete cooperative game theory in wireless networks In [9,10], authors used the concept of incomplete cooperative game theory in wireless networks for first time and ... K Das, and K Basu, “A game theory based approach for security in wireless sensor networks,” in Proceed-ings of the 23rd IEEE International Performance, Computing, and Communications Conference

Ngày tải lên: 21/06/2014, 17:20

... and information processing (CSIP) in wireless sensor networks Target tracking is one of the key motivating applications of wireless sensor networks [4 8] Passive acoustic sensor is often used in ... collaborative signal and information processing framework for acoustic target tracking in wireless sensor networks The distributed processing algorithm is based on mobile agent computing paradigm and ... 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

Ngày tải lên: 21/06/2014, 20:20

... L,D-Sink, andI L,J-Sink, and then add their link costs to ASink to form C B-Sink,C D-Sink, and C J-Sink, respectively Nodes B, D, and J store these information in their routing tables, as shown inTable ... situations In addition to sending the information to the sink, sensor nodes also perform complex computations for decision making within the network, either individually or in local 3000 instructions ... However, due to inherent Trang 2Control centre Sensor node Sensor field Mobile sink (gateway) Event area Figure 1: Wireless Sensor Networks problems of multihop wireless sensor networks, the design

Ngày tải lên: 21/06/2014, 23:20

... following theorem regarding its NP-hardness Theorem 3 Finding a minimum COV in an UDG is NP-hard. Proof To see this, we use the fact that it is NP-hard to find a minimum dominating set in an ... nodes in G have the sameζ values In this case, finding an MBACDS in G is equiv-alent to finding an MCDS inG Since the MCDS problem is NP-hard, the MBACDS problem is also NP-hard Now since the ... and maintain such a recovery table in sensor memory Thus, we can reduce the computational complexity by maintaining a recovery table on a sensor node with a fea-sible table size In summary, in this

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 ... “Minimum-energy asynchronous dissemination to mobile sinks in wireless sensor networks,” in Proceedings of the 1st International Confer-ence on Embedded Networked Sensor Systems (SenSys ’03), pp. ... minimal-hop path to each sink node in a short time interval We will explain the details about how to con-struct the routing tree with maximal path sharing in the fol-lowing part 4.2 Path-sharing

Ngày tải lên: 22/06/2014, 19:20

... signal on a interval of durationT k around the current timing instant t k(n) Due to the half duplex con-straint and the finite switching time between transmitting and receiving mode, each sensor ... AT1=1 and vector v in (16) reads v = 1/K ·1 This condition occurs in balanced networks [13], where i / = j α i j = 1 = i / = j α ji In sensor networks, this result is of interest in applications ... rectangular topology inFigure 2 ( =0.3, 0.7, γ =3,K =4) (a) Linear networks 1 2 3 4 5 (b) Ring net-work 3 4 5 (c) Star net-works Figure 5: The linear, ring, and star networks (K =5) three networks versus

Ngày tải lên: 22/06/2014, 19:20

... taken in sensor information and networking architecture (SINA) [24], in TinyDB [65] on top of TinyOS, and in Cougar [66] In SINA, database queries are injected to network as sensor querying and ... main task of the application is the con-stant gathering of location-dependent information within a defined area In addition to the passive monitoring involved in the environmental monitoring ... space also for information sharing and for sending notifications to callbacks routines The task migration as binary code is possible in BetrhaOS and in MultimodAI NeTworks of In-situ Sensors (MANTIS)

Ngày tải lên: 23/06/2014, 00:20