Abstract
The purpose of the study is to propose and substantiate technical solutions for inter-satellite and subscriber paths of loworbit communication networks. There is a prospect of commercial use of such networks; therefore, the current stage of low-orbit satellite communications development is characterized by an increase in efforts to put the projects into practice. As part of the study, solutions for inter-satellite paths (ISP) in low-orbit communication systems and solutions that increase the capacity of their subscriber paths are considered. It is noted that ISPs can be built on the basis of radio and optical bands equipment. In this regard, the advantages and disadvantages of each case are considered. The expediency of constructing subscriber paths based on radio band equipment and the preference of constructing ISP based on optical band equipment are substantiated. The relationship between the feasibility of increasing the capacity of subscriber paths and the capabilities of ISP in terms of reliability and bandwidth is established.
Highlights
The purpose of the study is to propose and substantiate technical solutions for inter-satellite and subscriber paths of loworbit communication networks
As part of the study, solutions for inter-satellite paths (ISP) in low-orbit communication systems and solutions that increase the capacity of their subscriber paths are considered
It is noted that ISPs can be built on the basis of radio and optical bands equipment
Summary
Цель исследования – предложить и обосновать технические решения для межспутниковых и абонентских трактов низкоорбитальных сетей связи. As part of the study, solutions for inter-satellite paths (ISP) in low-orbit communication systems and solutions that increase the capacity of their subscriber paths are considered. Цель статьи – предложить и обосновать технические решения для меспутниковых и абонентских трактов таких сетей. Актуальность решения проблемы технической реализации сети с МСТ заключается в том, чтобы, сохраняя достигнутые показатели спутниковых сетей, ускорить доставку сообщений от абонента к абоненту, снизить стоимость доставки, повысить пропускную способность и надежность трактов связи. Данное решение учитывает возможность перегрузок и отказов ретрансляторов в спутниковой сети, для чего предусмотрены обмен служебными сообщениями между спутниками-соседями с информацией об их возможностях и состоянии, а также блокирование проблемных направлений в коммутационной матрице ретранслятора и перенаправление абонентских сообщений к другим спутникам-соседям. Ввиду ограниченной пропускной способности радодиапазонных трактов, есть основания полагать, что часть МСТ сети будет испытывать
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