Performance Analysis of MAC Protocol for LEO Satellite Networks
نویسندگان
چکیده
منابع مشابه
Performance Analysis of MAC Protocol for LEO Satellite Networks
Considering that weak channel collision detection ability, long propagation delay and heavy load in LEO satellite communications, a valid adaptive APRMA MAC protocol was proposed. Different access probability functions for different services were obtained and appropriate access probabilities for voice and data users were updated slot by slot based on the estimation of the voice traffic and the ...
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We present an analytical model for computing call blocking probabilities in a LEO satellite network that carries voice calls. Both satellite-fixed and earth-fixed constellations with inter-orbit links and hand-offs are considered. The model is analyzed approximately by decomposing it into sub-systems. Each sub-system is solved in isolation exactly using a Markov process, and the individual resu...
متن کاملAn Adaptive MAC Layer Protocol for ATM-based LEO Satellite Networks (Extended Abstract)
German Aerospace (DLR), Fraunhofer FOKUS.cats, and Tesat-Spacecom have designed a future multimedia ATM-based LEO satellite network. Part of the development are an adaptive MAC and FEC scheme which is presented in this paper. The FEC implementation switches on the fly during a connection between several FEC and modulation modes to guarantee a maximum ATM cell error rate of 10−6. In order to pre...
متن کاملAn Adaptive MAC Layer Protocol for ATM-based LEO Satellite Networks
German Aerospace Center (DLR), Fraunhofer FOKUS.cats, and Tesat-Spacecom have designed a future multimedia ATM-based LEO satellite network. Part of the development was an adaptive MAC and FEC scheme which is presented in this paper. The FEC implementation switches on the fly during a connection between several FEC and modulation modes to guarantee a maximum ATM cell error rate of 10−6. In order...
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The rapid growth of Internet-based applications pushes broadband satellite networks to carry on IP traffic. In previously proposed connectionless routing schemes in satellite networks, the metrics used to calculate the paths do not reflect the total delay a packet may experience. In this paper, a new Satellite Grouping and Routing Protocol (SGRP) is developed. In each snapshot period, SGRP divi...
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ژورنال
عنوان ژورنال: International Journal of Communications, Network and System Sciences
سال: 2009
ISSN: 1913-3715,1913-3723
DOI: 10.4236/ijcns.2009.28091