An optimal packet scheduling and load balancing algorithm for LEO/MEO satellite networks
MSWiM '04 Proceedings of the 7th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
Computer Networks: The International Journal of Computer and Telecommunications Networking
A congestion control algorithm for the deep space Internet
Space Communications - Satellite Network Protocols
Deep-Space Transport Protocol: A novel transport scheme for Space DTNs
Computer Communications
Combined congestion control and link selection strategies for delay tolerant interplanetary networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
EURASIP Journal on Wireless Communications and Networking - Special issue on opportunistic and delay tolerant networks
Licklider transmission protocol (LTP)-based DTN for cislunar communications
IEEE/ACM Transactions on Networking (TON)
Proceedings of the 23rd International Teletraffic Congress
Wireless Personal Communications: An International Journal
Performance of DTN protocols in space communications
Wireless Networks
Delay Tolerant Payload Conditioning protocol
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Space exploration missions are crucial for acquisition of information about space and the Universe. The entire success of a mission is directly related to the satisfaction of its communications needs. For this goal, the challenges posed by the InterPlaNetary (IPN) Internet need to be addressed. Current transmission control protocols (TCPs) have very poor performance in the IPN Internet, which is characterized by extremely high propagation delays, link errors, asymmetrical bandwidth, and blackouts. The window-based congestion control, which injects a new packet into the network upon an ACK reception, is responsible for such performance degradation due to high propagation delay. Slow start algorithms of the existing TCPs further contribute to the performance degradation by wasting long time periods to reach the actual data rate. Moreover, wireless link errors amplify the problem by misleading the TCP source to unnecessarily throttle the congestion window. The recovery from erroneous window decrease takes a certain amount of time, which is proportional to the round-trip time (RTT) and further decreases the network performance. In this paper, a reliable transport protocol (TP-Planet) is presented for data traffic in the IPN Internet. It is intended to address the challenges and to achieve high throughput performance and reliable data transmission on deep-space links of the IPN Backbone Network. TP-Planet deploys a rate-based additive-increase multiplicative-decrease (AIMD) congestion control, whose AIMD parameters are tuned to help avoid throughput degradation. TP-Planet replaces the inefficient slow start algorithm with a novel Initial State algorithm, which allows the capture of link resources in a very fast and controlled manner. A new congestion detection and control mechanism is developed, which decouples congestion decisions from single packet losses in order to avoid the erroneous congestion decisions due to high link errors. In order to reduce the effects of blackout conditions on the throughput performance, TP-Planet incorporates the blackout state procedure into the protocol operation. The bandwidth asymmetry problem is addressed by the adoption of delayed selective acknowledgment (SACK). Simulation experiments show that the TP-Planet significantly impr- oves the throughput performance and addresses the challenges posed by the IPN Backbone Network.