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J. KIMS Technol > Volume 17(5); 2014 > Article
Journal of the Korea Institute of Military Science and Technology 2014;17(5):561-568.
DOI: https://doi.org/10.9766/KIMST.2014.17.5.561   
Throughput Analysis of R-NAD in MIL-STD-188-220
Sangsoo Kim, Sungmo Gu, Jaesung Lim
1The 2nd Research and Development Institute, Agency for Defense Development
2Department of Computer Engineering, Ajou University
MIL-STD-188-220의 R-NAD 처리율 분석
김상수, 구성모, 임재성
1국방과학연구소 제2기술연구본부
2아주대학교 컴퓨터공학과
Abstract
The Republic of Korea Army is using R-NAD of MIL-STD-188-220 as a Media Access Control protocol. Under urgent situations, almost all stations transmit data frames and then the network will reach a saturation state. Several articles have been devoted to the study of R-NAD performance. However, most of them focus on comparing the performance of some NADs using network simulation tools. We propose an analytical model to compute the throughput of R-NAD under the assumption of a network traffic saturation. Analytical results were verified by Monte Carlo methods. We have shown that the performance of a success probability and an average idle time remains almost unchanged as the total number of stations increases. We have also shown that Type 1/2/4 operation mode outperforms Type 3 operation mode in throughput. The results showed that the system with a squelch detection achieved a better performance than the one without it. The longer DATA time had a higher throughput.
Key Words: R-NAD, Throughput Analysis, MIL-STD-188-220, Tactical Data Link, MAC Protocol
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