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Issy-les-Moulineaux, France

Gligoric N.,Ericsson AB | Dimcic T.,Ericsson AB | Drajic D.,Ericsson AB | Krco S.,Ericsson AB | And 3 more authors.
2012 20th Telecommunications Forum, TELFOR 2012 - Proceedings | Year: 2012

M2M devices can be deployed at various, often not easy to access locations like rural areas, high on the buildings or on moving vehicles. Mobile networks provide connectivity to such devices over the existing infrastructure. This paper presents an implementation and evaluation of the SMS for M2M communication by utilizing CoAP message semantics. The CoAP is a high-layer protocol that strives to become a standardized solution for M2M communication, and as such is interesting for related activities. The evaluation of regular, concatenated and multicast SMS transport shows that increased SMS traffic can lead to longer delivery time. This may not be a concern for M2M devices that are usually sensors with long sleeping cycles; but for other M2M scenarios that requires higher throughput, higher data rates can be achieved by agreeing over specific SLA with Service Provider. © 2012 IEEE. Source


Gligoric N.,Ericsson AB | Dimcic T.,Ericsson AB | Drajic D.,Ericsson AB | Krco S.,Ericsson AB | Chu N.,Sierra Wireless France
2012 20th Telecommunications Forum, TELFOR 2012 - Proceedings | Year: 2012

With an increasing number of M2M devices communicating over SMS, the need for security was raised because standard SMS messaging service does not provide any light-weight security mechanisms. In this paper we propose hybrid application-layer security with compression for M2M communication over SMS. The signature is calculated using device IMEI, secret key and payload; thus signature is not always the same, which prevents duplicated/stolen signature and replay attack and it provides a content integrity check. The security is implemented on android powered mobile devices and evaluated against non-secure payload for message response time and bandwidth in live GSM network. Evaluation shows that SMS delivery time is not influenced by this security mechanism. In addition compression can save bandwidth for more verbose and longer payloads. © 2012 IEEE. Source


Chu N.,Sierra Wireless France | Raouf D.,Sierra Wireless France | Corlay B.,Sierra Wireless France | Ammari M.,Sierra Wireless France | And 4 more authors.
European Transactions on Telecommunications | Year: 2013

This paper presents Exalted Lightweight For Open Mobile Alliance Device Management (OMA DM) v1.x, an alternative lightweight solution that is fully compatible with the current OMA DM protocol and with all existing OMA Management Objects. This solution aims to enable operators and service providers to leverage their existing OMA DM servers to continue supporting current OMA DM enabled mobile devices and to incrementally support new constrained machine to machine devices through an added proxy server. Exalted Lightweight For Open Mobile Alliance Device Management v1.x reduces the size of OMA DM messages by 89% while optimizing the processing performance and resource consumption. Copyright © 2013 John Wiley & Sons, Ltd. Source

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