Báo cáo hóa học: " Research Article A Novel Secure Localization Approach in Wireless Sensor Networks" pot

... proposed, including triangulation and RF-based fingerprinting, to make localization attack-tolerant. SPINE [8] is a range-based positioning system that enables verifiable multilateration and verification of positions ... H(t s ). An example of the distance-consistent spooking attack is shown in Figure 1 (a) . As two colluding attackers A 1 and A 2 can communicate with each other via an...

Ngày tải lên: 21/06/2014, 11:20

... to obtain additional side information in the form of an image. As another example, in health care facilities [1, 2], one may measure a patient’s vital statistics, such as heart rate, using sensors. ... (i.e., all the shares and the initial state Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2007, Article ID 21646, 17 pages doi:10.1155/2007/21...

Ngày tải lên: 22/06/2014, 23:20

... 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 ... extent and movement of gas back to nearby UAVs and take appropriate decisions concerning an evacuation plan. Embedding sensors in roadbeds, alongside highways, or bridge structures and pl...

Ngày tải lên: 21/06/2014, 17:20

... node a are associated with same information flow. MCCP uses minimum hop forwarding at the routing layer. In order to achieve minimum hop routing, each node maintains a next hop table which contains ... from the sink. Each node maintains data and schedule intervals, therefore, the operation of MCCP can be subdivided into schedule interval and data interval operations. Each schedule interv...

Ngày tải lên: 21/06/2014, 23:20

... Chi Ma et al. 15 [18] C. Ma and Y. Yang, “Battery-aware routing in wireless ad hoc networks—part II: battery-aware routing,” in Proceedings o f the 19th Internat i onal Teletraffic Congress ... Jamieson, H. Balakrishnan, and R. Morris, “Span: an energy-efficient coordination algorithm for topology main- tenance in ad hoc wireless networks,” in Proceedings of the 7th Annual Internation...

Ngày tải lên: 22/06/2014, 19:20

... impact of S data , r,andρ on P. the increase of S data .Ifρ = 1, all the sensory data will be fused into a data with fixed size. We expect that as ρ decreases, the advantagesofMADDwilldecrease.Aswetakeaconservative approach ... the target sensors along a single path. 4.2. Mobile agent packet format The information contained in an MA packet is shown in Figure 4. The pair of SinkID and...

Ngày tải lên: 22/06/2014, 23:20

... was studied in [10] assuming single transmitter and receiver pair. In this paper, we derive the PDF of the SINR for the downlink of a cell area in a semianalytical fashion. A practical propagation ... be easily examined by employing appropriate path loss models. The basic parameters used for the comparison are summarised in Tabl e 1. We assume that all interfering BSs are locate...

Ngày tải lên: 21/06/2014, 18:20

... nodes elected on a cyclical basis, producing an increased number of nodes vulnerable to capture by an adversary. In order that any two sensor nodes may communicate securely, they have to share a secret. ... to select intermediate nodes. To explain in detail the path key establishment problem, we illustrate using a small network having six sensor nodes as shown in Figure 1. Sol...

Ngày tải lên: 21/06/2014, 22:20

... natural physiological states without constraining their normal activities. They are used to develop a smart and a ordable health care system and can be a part of diagnostic procedure, maintenance ... propagate across the body surface. This propagation may be a combination of surface waves, creeping waves, diffracted waves, scattered waves, and free space propagation depending on the ant...

Ngày tải lên: 21/06/2014, 23:20

... source information using a T × N code matrix Φ ∈ C.Eachactiverelaytrans- mits a linear combination of the columns of the information- carrying matrix Φ. The linear combination coefficients for each ... Numerical Optimization, Springer, New York, NY, USA, 1999. [23] R. A. Adams, Single Variable Calculus, Addison-Wesley, Read- ing, Mass, USA, 1995. 6 EURASIP Journal on Advances in Signal P...

Ngày tải lên: 22/06/2014, 19:20