Proceedings ArticleDOI
A DTN Approach to Satellite Communications
Carlo Caini,P. Cornice,Rosario Firrincieli,D. Lacamera,S. Tamagnini +4 more
- pp 173-177
Reads0
Chats0
TLDR
The aim of the paper is to discuss the advantages and disadvantages of the DTN approach compared to more conventional solutions, and to assess DTN performance by using a testbed based on a cluster of Linux PCs running theDTNperf application.Abstract:
Satellite communications pose serious challenges to transport layer performance, mainly because of long propagation delays (especially in geosynchronous systems) and the possible presence of random errors on the satellite link. Solutions that cope with these impairments usually rely upon either the adoption of enhanced versions of transport protocols, or the insertion of intermediate agents, like PEPs (Performance Enhancing Proxy). An alternative approach is to adopt DTN (Delay/Disruption Tolerant Network) architecture, based on the introduction of the new "bundle" layer in the protocol stack. The aim of the paper is to discuss the advantages and disadvantages of the DTN approach compared to more conventional solutions. DTN performance is assessed by using a testbed based on a cluster of Linux PCs running the DTNperf application, which was developed to this end by the authors and now included in the official DTN package. Preliminary results are presented and discussed in the paper.read more
Citations
More filters
Delay- and Disruption-Tolerant Networking (DTN): An Alternative Solution for Future Satellite Networking Applications Applications of DTN for future satellite networks are discussed in this paper, as well as the relationship between DTN and quality of service (QoS).
TL;DR: In this article, the authors present a broad DTN overview, to make the reader familiar with the characteristics that differentiate DTN from ordinary TCP/IP networking, compare the DTN and PEP architectures and stacks, as a preliminary step for the subsegment quent DTN performance assessment carried out in practical LEO/GEO satellite scenarios.
A Survey of Delay- and Disruption-Tolerant Networking Applications
TL;DR: Delay and Disruption-Tolerant Networking (DTN) is a new communication paradigm that can span across multiple networks and cope with harsh conditions not envisioned in the Internet model as discussed by the authors.
Journal ArticleDOI
LTP Aggregation of DTN Bundles in Space Communications
TL;DR: This work studies the effect of aggregation of data bundles in space communications characterized by asymmetric and low channel rates and intends to find the number of bundles which should be aggregated within a block for the best performance over highly asymmetric cislunar channel rates.
Journal ArticleDOI
Analytical characterization of licklider transmission protocol (LTP) in cislunar communications
Zhihua Yang,Ruhai Wang,Qian Yu,Xue Sun,Mauro De Sanctis,Qinyu Zhang,Jianling Hu,Kanglian Zhao +7 more
TL;DR: Analytical models are built to characterize LTPCL with respect to the minimum number of bundle protocol (BP) bundles that should be aggregated to avoid delay in acknowledgment (ACK) transmission and the optimal number of bundles to be aggregation for the best transmission efficiency of BP/LTPCL.
Journal ArticleDOI
Modeling memory-variation dynamics for the Licklider transmission protocol in deep-space communications
TL;DR: A study of memory dynamics for LTP-based transmission in a typical relay-based deep-space communication system characterized by an extremely long signal-propagation delay, lossy data links, and asymmetric data rates.
References
More filters
Security Architecture for the Internet Protocol
TL;DR: This document describes an updated version of the "Security Architecture for IP", which is designed to provide security services for traffic at the IP layer, and obsoletes RFC 2401 (November 1998).
Requirements for Internet Hosts - Communication Layers
TL;DR: This RFC is an official specification for the Internet community that incorporates by reference, amends, corrects, and supplements the primary protocol standards documents relating to hosts.
TCP Selective Acknowledgement Options
TL;DR: TCP may experience poor performance when multiple packets are lost from one window of data because of the limited information available from cumulative acknowledgments.
The NewReno Modification to TCP's Fast Recovery Algorithm
TL;DR: The purpose of this document is to advance NewReno TCP's Fast Retransmit and Fast Recovery algorithms in RFC 2582 from Experimental to Standards Track status.