Distributed chat in dynamic networks

Skjegstad, Magnus; Lund, Ketil; Skjervold, Espen; Johnsen, Frank T.

doi:10.1109/milcom.2011.6127547

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…The average bandwidth usage of XMPP is around 32000 bytes/sec and can go up to 40000 bytes/sec [3] It is claimed that Iridium operates at 2400 bits/sec (after error corrections) and has latency of around 1800 ms round-trip for data connections [4].…”

Section: B Low Bandwidth (Lb) and High Latency (Hl) Conditionsmentioning

confidence: 99%

XMPP Based Applications under Low Bandwidth and High Latency Conditions

Gurel¹,

Cakir²

2015

LNSE

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Abstract-This paper discusses use of Extensible Messaging and Presence Protocol (XMPP) based applications under Low Bandwidth and High Latency conditions. Such conditions usually occur during communication between air-to-air or air-to-distant sea platforms. Considering the type of subject conditions XMPP applications discussed in this paper is mostly applicable to military and defense industry. In terms of XMPP applications IM, chat, message broadcasting, Customizable Forms (CF), archiving and database functionalities can be considered. Conditions of Low Bandwidth and High Latency require existing XMPP and data exchange mechanism to be revised or simplified. Otherwise XMPP communication is delayed or gets interrupted and the purpose of XMPP application is not properly met. This study discusses the use of compression algorithms to tackle this problem. Although quantitative facts are provided and referenced this paper is based on empirical approach and includes qualitative results.Index Terms-XMPP, low bandwidth, high latency.

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Section: B Low Bandwidth (Lb) and High Latency (Hl) Conditionsmentioning

confidence: 99%

XMPP Based Applications under Low Bandwidth and High Latency Conditions

Gurel¹,

Cakir²

2015

LNSE

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“…Their proposal also enables serverless communications, which is highly useful in the tactical MANETs where connections may be very unreliable due to highly dynamic environments. [5] The contribution of this paper is a novel architecture to improve the security of XMPP instant messaging systems. The presented architecture separates the direct s2s connection from the Mission Network (MN).…”

Section: Introductionmentioning

confidence: 99%

Architecture of XMPP proxy for server-to-server connections

Järvinen

Marttinen

Luoma

et al. 2017

2017 Military Communications and Information Systems Conference (MilCIS)

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Abstract-The Extensible Messaging and Presence Protocol (XMPP) is one of the most popular Instant Messaging (IM) protocols which uses a client-server working mode. This protocol uses different connection primitives for both client-to-server (c2s) and server-to-server (s2s) connections. It is actively used in mission-critical operations where the reliability and security of communication systems is always imperative. One approach to secure services and private networks is to use proxy services as security gateways. Proxies enable interoperability between different security domains acting as Information Exchange Gateways (IEGs).In this paper we present an architecture of the XMPP proxy for s2s connections. The system is based on an Openfire XMPP server with a Hazelcast clustering plugin, and a Hazelcast clustering link is used between the XMPP server and the XMPP Proxy. We have constructed an implementation to verify and validate the presented approach. Our proposal enables an effective seamless connection for XMPP proxies. Furthermore, it increases the system security for example, terminating both TCP and XMPP flows to prevent malicious attacks. Finally, we show that the proposal does not significantly increase the anticipated delay of the communication.

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