Wireless Information Transfer System for Blind People

The article deals with analysis of the causes of intersymbol interference and interchannel interference. It is indicated that physically unrealizable orthogonal bases are used to describe systems and signals. The considered interference occurs due to the loss of orthogonality by the coordinate signals of the bases. Known methods for obtaining systems of orthogonal functions do not allow the formation of a coordinate basis corresponding to physically feasible systems and signals. It is proposed to use equidistant biased impulse characteristics of physically realizable linear systems as basic signals. An orthogonalization method based on determining the weight of orthogonality is described. It is shown that the resulting basis is quasi-orthogonal. It is determined that the conversion of the standart low-pass prototype filter into the filters of channel-forming equipment does not change the conditions of orthogonality. Structural schemes of a modulator and a demodulator of two-dimensional signals are proposed, based on the developed method of orthogonalization.

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Maternal programming of the fetal brain dictates the response of juvenile Siberian hamsters to photoperiod: Dissecting the information transfer system

Journal of Experimental Zoology ◽

10.1002/jez.1402560443 ◽

1990 ◽

Vol 256 (S4) ◽

pp. 200-202 ◽

Cited By ~ 14

Author(s):

Teresa H. Horton ◽

Milton H. Stetson

Keyword(s):

Information Transfer ◽

Fetal Brain ◽

Transfer System ◽

Siberian Hamsters ◽

Maternal Programming

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Analysis on Privacy and Reliability of Ad Hoc Network-Based in Protecting Agricultural Data

The Open Electrical & Electronic Engineering Journal ◽

10.2174/1874129001408010777 ◽

2014 ◽

Vol 8 (1) ◽

pp. 777-781

Author(s):

Xiangju Liu

Keyword(s):

Routing Protocol ◽

Data Transmission ◽

Ad Hoc Network ◽

Information Transfer ◽

Ad Hoc ◽

Mobile Node ◽

Transfer System ◽

Mobile Nodes ◽

Wireless Data ◽

Wireless Data Transmission

To analyze the privacy and reliability of Ad Hoc Network-based algorithms used in agricultural wireless data transmission, the paper introduces the routing protocols including DSDV, AODV and DSR, based on which a farmland model is built to simulate the speed and density of mobile node, and regards the success rate of data transmission (R/S Rate), average latency of end-to-end (E2E Delay) and average hops as the evaluation indicator of farmland information transfer system. As a result of the analysis, the privacy and reliability are influenced by the speed and density of mobile nodes; the higher the speed is and the lower the density is, the lower the R/S Rate is; AODV routing protocol is better in R/S Rate while DSDV routing protocol does better in both E2E Delay and average hops. It is concluded that DSDV routing protocol suits most the Ad Hoc network-based farmland information transfer system.

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