Title: A reliable communications architecture for real-time IP mobile applications

Authors: J-Ch. Gregoire, Omneya Issa, Yacine Belala, James Wong

Addresses: INRS-EMT, 800, De La Gauchetiere O., Montreal, QC, H2V 1G7, Canada. ' Advanced Video Systems, Broadcast Technologies, Communications Research Centre, 3701 Carling Avenue, P.O. Box 11490, Station H., Ottawa, ON, K2H 8S2, Canada. ' SAP Labs Canada, 111 Duke Street, Suite 1500, Montreal, QC, H3C 2M1, Canada. ' Videotron Limited, 150 Beaubien O., 6th Floor, Montreal, QC, H2V 1C4, Canada

Abstract: While the availability of a variety of wireless access technologies already provides users with ubiquitous access to critical content and applications, ensuring a satisfactory Quality of Service (QoS) and high availability further requires reliable delivery schemes that optimally use the available bandwidth. This paper presents a novel architecture to support adaptive real-time IP applications. It includes a layer of abstraction to isolate the application from the actual transport channels. It also uses a message-based protocol to improve communications reliability. Adaptation mechanisms are introduced and validated using a healthcare application. Experimental results are reported that demonstrate the viability of the approach.

Keywords: mobile communications; heterogeneous wireless networks; real-time IP applications; quality of service; QoS; embedded software; e-health; multimedia; communications reliability; internet protocol; electronic healthcare; healthcare technology.

DOI: 10.1504/IJMC.2009.023694

International Journal of Mobile Communications, 2009 Vol.7 No.4, pp.449 - 469

Available online: 08 Mar 2009 *

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