Báo cáo hóa học: " A survey of performance enhancement of transmission control protocol (TCP) in wireless ad hoc networks" pptx

... hoc TCP; ADV: adaptive distance vector; APS: adaptive packet size; APS-FeW: adaptive packet size on top of FeW; ABR: associativity-based routing protocol; BEAD: best effort ACK del ivery; CSMA/CA: carrier ... whereas in the LRED algorithm, they are taken to be a sign of contention. The second me chanism, adaptive pacing, is used for regulating the data flow in a more balanced a...

Ngày tải lên: 21/06/2014, 00:20

... Hyung-jin Kim 2 , In- ho Ra 3 and Ravi Sankar 1 Abstract In this article, we address the goal of achieving performance gains under heavy-load and fast fading conditions. CoopMACI protocol proposed in ... directly trans- mitting to the destination node at high data rates. Using any intermediate node that is appropriately located (and is willing to cooperate) can allow transmission...

Ngày tải lên: 21/06/2014, 03:20

... is investigated. The last two papers address the problem of localizing and tracking objects using a WSN. In particular, the paper “Localization capability of cooperative anti-intruder radar systems” ... experimental data” by D. Dardari et al., an extensive measurement campaign is described and the measured data are used to derive statistical ranging models based on TOA estimation in...

Ngày tải lên: 22/06/2014, 01:20

... Half-quadrant-based algorithm The half-quadrant-based algorithm is aimed at selecting one out of the eight half-quadrants to be the destination sector for the energy mower in each data-gathering ... overhead of maintaining the delivery paths to a mobile sink. In our solution, to make the energy mower move au- tonomously, each data packet has to carry some additional information. We...

Ngày tải lên: 22/06/2014, 19:20

... Alaska, USA, May 2003. [5] A. K.Das,R.J.Marks,M.El-Sharkawi,P.Arabshahi,andA. Gray, “MDLT: a polynomial time optimal algorithm for maxi- mization of time-to-first-failure in energy constrained wireless broadcast ... nodes indicate the nonmembers. The dark arrows indicate links that are included into thetreeinsearch phases and the lig h t arrows indicate the links that are included int...

Ngày tải lên: 22/06/2014, 22:20

... personal life 0.922 Speak clearly 0.393 AVE = Average Variance Extracted Loading = Standardized loading coefficient Table 7: Best fit factorial model for WURSS-44 (Continued) Health and Quality of ... has a beginning and an end, area under the curve (AUC) may be an appropriate parameter to consider for the primary outcome for clinical trials. While various strategies such as a fitting...

Ngày tải lên: 18/06/2014, 19:20

... 30:186-193. 24. Bradley RH, Corwyn RF: Life satisfaction among European American, African American, Chinese American, Mexican American, and Dominican American adolescents. Int J Behav Dev 2004, 28:385-400. 25. ... was created to assess a general sense of perceived self-efficacy, with the aim in mind of predicting ability to cope with daily demands as well as adaptation after expe- rie...

Ngày tải lên: 18/06/2014, 19:20

... model, a mean of approxi- mately zero and a standard deviation of 1 would be expected. A third is an item-trait interaction statistic reported as a Chi-Square, reflecting the property of invar- iance ... For example, in the case of measuring mental well-being, males and females should have the same probability of affirming an item (in the dichotomous case), at the same le...

Ngày tải lên: 18/06/2014, 19:20

... manuscript. Acknowledgements The authors are grateful to the AOK Sachsen-Anhalt and the AOK Rhein- land-Pfalz for support in sending out the study material to their insured and for the preparation of claims data for sampling ... described as a sense of well-being, meaning and value. Journal of advanced nursing 2000, 32:1025-1033. 10. Fortin M, Bravo G, Hudon C, Vanasse A, Lapointe...

Ngày tải lên: 18/06/2014, 19:20

... G Warren 3 Address: 1 Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, T6G 2G4, Canada, 2 Institute of Health Economics, Edmonton, Alberta, T5J 3N4, Canada and ... At the end of Cycle 1.1 a total of 131, 535 respondents had been surveyed; the overall response rate was 84.7% [14]. Approval to access the survey data was obtained from Sta- tistics Ca...

Ngày tải lên: 18/06/2014, 22:20