LTP Aggregation of DTN Bundles in Space Communications

Author

Ruhai Wang ; Zhiguo Wei ; Qinyu Zhang ; Jia Hou

Author_Institution

Lamar Univ., TX, USA

Volume

49

Issue

3

fYear

2013

fDate

Jul-13

Firstpage

1677

Lastpage

1691

Abstract

Delay-/disruption-tolerant networking (DTN) offers a solution to highly stressed communications in space environments. Very little work has been done in investigating how to accommodate highly asymmetric space communication channels for high performance of DTN transmission in space. We study the effect of aggregation of data bundles in space communications characterized by asymmetric and low channel rates and intend to find the number of bundles which should be aggregated within a block for the best performance over highly asymmetric cislunar channel rates. A channel ratio (CR) threshold is derived considering the lengths of an aggregated data block and an acknowledgment (ACK) packet and channel rates, and it must be maintained to avoid delay of ACK transmission of DTN Licklider transmission protocol (LTP) due to space channel asymmetry.

Keywords

delay tolerant networks; protocols; space communication links; DTN bundles; LTP aggregation; Licklider transmission protocol; acknowledgment packet; asymmetric cislunar channel rates; channel ratio threshold; data block aggregation; data bundle aggregation; delay tolerant networking; disruption tolerant networking; space channel asymmetry; space communications; Aerospace electronics; Bit error rate; Delays; Educational institutions; Interplanetary; Protocols; Space vehicles;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/TAES.2013.6558012

Filename

6558012