Abstract
In order to analyze the transmission capacity performance of the cluster flight spacecraft network, there are two different types of outage performance theory which are derived in this paper. First of all, by applying the mean value theorem of integrals, the expression of the outage probability of decode-and-forward relaying is derived. Subsequently, according to the Macdonald random variable form, the expression of the outage probability of amplify-and-forward is derived. By simulating the transmission capacity of decode-and-forward, the transmission capacity characteristics of a single hop and dual hops are analyzed. The simulation results showed that transmission capacity performance changes with the change of the time slot in the orbital hyperperiod, and the transmission capacity of a dual-hop relay has better performance than a single-hop transmission in the cluster flight spacecraft network.
Highlights
In recent years, fractionated spacecraft with the cluster flight model has become a hot topic in the field of distributed space network due to its advantages of flexibility, rapid response, low cost, strong scalability, and long lifetime. e previous studies have made contribution to earth observation and space exploration [1,2,3]
Transmission capacity is used to measure the parameters of distributed network capacity, which was redefined by Weber et al [14], that is, the number of successful communications that the network can achieve per unit area when the outage probability of communication is limited
The determined network topology can be used for the study of network transmission capacity performance, and the network transmission capacity can be determined [19]. e topology of the network will be determined within a time slot in an orbital hyperperiod, and dynamic network topology is changed periodically. e research on the transmission capacity characteristics of the cluster flight spacecraft network (CFSN) is carried out, which is based on the conditions determined by the network topology periodically [19, 20]
Summary
In recent years, fractionated spacecraft with the cluster flight model has become a hot topic in the field of distributed space network due to its advantages of flexibility, rapid response, low cost, strong scalability, and long lifetime. e previous studies have made contribution to earth observation and space exploration [1,2,3]. Erefore, under the condition of limited transmit power, the study on the transmission capacity performance of the CFSN is an important issue. Transmission capacity is used to measure the parameters of distributed network capacity, which was redefined by Weber et al [14], that is, the number of successful communications that the network can achieve per unit area when the outage probability of communication is limited. According to the random access transmission capacity and under the condition of hop length between the source and the destination on the line with equidistance, a simple upper-bound closed solution is derived based on key network parameters when the number of retransmissions is unlimited [17]. The determined network topology can be used for the study of network transmission capacity performance, and the network transmission capacity can be determined [19]. e topology of the network will be determined within a time slot in an orbital hyperperiod, and dynamic network topology is changed periodically. e research on the transmission capacity characteristics of the CFSN is carried out, which is based on the conditions determined by the network topology periodically [19, 20]
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