Distributed Data Gathering in MultiSink Sensor Networks with Correlated Sources

... using the subgradient algorithm The resulting algorithm is asynchronous, distributed, and supports large-scale sensor networks with multiple sink nodes Data gathering with correlated sources in ... traditional wireline networks In sensor networks, the capacity of a wireless link is interrelated with other wireless links in its cluster Therefore, data flows compe...

Ngày tải lên: 14/04/2015, 14:22

... model) in case of missing detection Conclusions In this paper we address the problem of data association in visual sensor networks We consider data association as an inference problem in dynamic ... intractable In fact, intractability is an intrinsic property of the data association problems, no matter in VSN or in traditional multitargets tracking [9] In t...

Ngày tải lên: 21/06/2014, 05:20

... frequency-asynchronous networks is a challenging task and is left for future work DISTRIBUTED TIME SYNCHRONIZATION AS COUPLED DISCRETE -TIME PLLs The purpose of this section is to discuss the distributed synchronization ... baseband signal received by the kth node in the nth time period reads (sampling index m ranges within −N/2 < m ≤ N/2 with m = corresponding to the firi...

Ngày tải lên: 22/06/2014, 19:20

... Genova, Italy, June 2009 [12] I Bahceci and A K Khandani, “Linear estimation of correlated data in wireless sensor networks with optimum power allocation and analog modulation,” IEEE Transactions ... Power Allocation with Perfect CSI 3.1 Minimization of the Distortion Subject to the Power Constraint We base our adaptive power allocation design on the...

Ngày tải lên: 21/06/2014, 17:20

... energy savings and source -to- sink delay in data dissemination for wireless sensor networks, ” in Proceedings of the 8th ACM Symposium on Modeling, Analysis and Simulation of Wireless and Mobile ... D Demaine, and S Teller, “Mobile-assisted localization in wireless sensor networks, ” in Proceedings of the 24th Annual Joint Conference of the IEEE Computer and Com...

Ngày tải lên: 22/06/2014, 19:20

... consistency) Although the estimation of clock parameters using a quadratic model is computationally more demanding than using the linear model, it helps in maintaining long-term synchronization among ... after every minutes Therefore, there is a need for a better model to estimate the clock parameters for achieving long-term synchronization in WSNs And this paper targets...

Ngày tải lên: 22/06/2014, 19:20

... probability with respect to the fading channel using the known fading statistics We show that the sensor decision rules amount to local LRTs for both cases Compared with the existing channel aware ... and P K Varshney, “Decision fusion rules in wireless sensor networks using fading channel statistics,” in Proceedings of the 37th Annual Conference on Information Sci...

Ngày tải lên: 22/06/2014, 22:20

... In Chapter 5, the decision making protocols for winner determination in reverse auction- based task allocation are introduced Our proposed Energy and Delay Efficient Distributed Winner Determination ... centralized winner determination method The task message format for centralize method is {Task, Task Size, Task Deadline} where Task can be any low-level tasks such as s...

Ngày tải lên: 30/09/2015, 14:23

... world In the paper, we presented an analytical modeling to formulate the hop-distance relationship considering the quasi-UDG model Senor nodes are randomly distributed in a circular region according ... developed hop-distance relationship considering the quasi-UDG model in WSN localizations We designed a LS-based localization algorithm using our developed relationship...

Ngày tải lên: 20/06/2014, 22:20

... the node mobility of mobile nodes to provide an efficient dynamic coverage of the region of interest after the initial deployment stage Exploiting mobile nodes for continuous coverage in mobile sensor ... maintain an approximately uniform coverage over time Taking these factors into account, in this paper, we propose a new distributed mobility protocol for mobile node...

Ngày tải lên: 21/06/2014, 05:20

... S Boyd, and S Lall, “A scheme for robust distributed sensor fusion based on average consensus, ” in Proceedings of the 4th International Symposium on Information Processing in Sensor Networks ... failure, and other practical conditions when utilizing the DAC algorithm in wireless sensor networks References [1] R Olfati-Saber, J A Fax, and R M Murray, Consensus...

Ngày tải lên: 21/06/2014, 16:20

... scheme, differing only in the fact that multiple keys are used to establish pairwise key instead of just one By increasing the amount of key overlap required for key establishment, this scheme increases ... Generating Key Pool The initial key pool consists of L key groups and each key group consists of M initial keys Hence, the initial key pool contains P = L ∗ M initial k...

Ngày tải lên: 21/06/2014, 17:20

... for committing, or securely binding, a cryptographic key for secure transmission over an insecure channel More detailed descriptions of this scheme will be given in Section 2.5 Essentially, for ... F M Bui and D Hatzinakos OUR CONTRIBUTIONS The existing research in BSN using ECG biometric can be classified into two major categories: network topology (via clustering formati...

Ngày tải lên: 22/06/2014, 00:20

... containing two event-regions as shown in Figure We have μn (1) = for those sensors {n} in the rectangle event-region, and μn (1) = 0.8 for those sensors {n} in the circular event-region In our ... training data in capturing the true field In practice, the training data should have a good representation of the true field, for example, the number of event-regions and their correspo...

Ngày tải lên: 22/06/2014, 19:20

... throughput The effect of MAC for information retrieval on information processing is analyzed in [7, 8] for in nite and finite sensor density networks, respectively, where the performance of the centralized ... bandwidth required for sensors reporting their locations is prohibitively Here, m − points are sought instead of m points in the linear field case MAC for Optima...

Ngày tải lên: 23/06/2014, 00:20