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Data Security for In-mine Transmission. Final Report--part II.

Authors
Bredeson-JG; Hashemi-H; Sreedhar-K
Source
NTIS: PB/84-185081 :76 pages
Link
NIOSHTIC No.
10003529
Abstract
Part I of this report contained a survey of noise measurements made by a number of researchers. This information was used to calculate bit error rates for mine communication systems. Part II, this report, examined available probability information of the noise envelope for noise measured in the mining environment. The exceedance probability distribution was averaged for available noise data and was shown to be modeled closely by middleton's class b model. The noise power at the output of several communication links was scaled appropriately and together with the signal power a probability of burst error was calculated. The protocols were analyzed to determine the probability of undetected burst error for each communication system and then plotted versus distance. Some protocols are used very extensively in all types of communications systems, while others are designed for special systems. The report analyzes several protocols and gives recommendations for their use.
Publication Date
19820101
Document Type
CP; Final Contract Report;
Fiscal Year
1982
NTIS Accession No.
PB84-185081
NTIS Price
A06
Identifying No.
OFR 88-84
NIOSH Division
PRC;
Source Name
NTIS: PB/84-185081
State
OK;
Performing Organization
Univ. of Oklahoma
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