| 1. |
- Caporuscio, Mauro, 1975-, et al.
(författare)
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An Experience in Evaluating Publish/Subscribe Services in a Wireless Network
- 2002
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Ingår i: Proceedings of the 3rd International Workshop on Software and Performance. - New York, NY, USA : ACM Press. - 1581135637 ; , s. 128-133
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Konferensbidrag (refereegranskat)abstract
- As wireless technology becomes more available, developers of distributed applications are becoming more interested in how that technology affects the performance of their systems. We have developed a distributed publish/subscribe communication service initially hosted on the standard IP-wired network infrastructure, but would now like to rehost that service onto a GPRS wireless network. This paper reports on our experience in attempting to evaluate the performance of the service using an available emulation environment. Our conclusion from our experience to date is that current tools do not model the wireless network at an appropriate level of abstraction. In particular, they do not allow us to study the integration of individual publish/subscribe service-layer elements with GPRS network-layer elements, nor do they allow us to study multiple GPRS clients interacting over the network. Instead we were limited to results related to the interaction between an individual GPRS client and the GPRS network modeled as a monolith.
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| 2. |
- Caporuscio, Mauro, 1975-, et al.
(författare)
-
Design and Evaluation of a Support Service for Mobile, Wireless Publish/Subscribe Applications
- 2003
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Ingår i: IEEE Transactions on Software Engineering. - : IEEE Press. - 0098-5589 .- 1939-3520. ; 29:12, s. 1059-1071
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Tidskriftsartikel (refereegranskat)abstract
- This paper presents the design and evaluation of a support service for mobile, wireless clients of a distributed publish/subscribe system. A distributed publish/subscribe system is a networked communication infrastructure where messages are published by senders and then delivered to the receivers whose subscriptions match the messages. Communication therefore does not involve the use of explicit addresses, but rather emerges from the dynamic arrangement of publishers and subscribers. Such a communication mechanism is an ideal platform for a variety of Internet applications, including multiparty messaging, personal information management, information sharing, online news distribution, service discovery, and electronic auctions. Our goal is to support such applications on mobile, wireless host devices in such a way that the applications can, if they chose, be oblivious to the mobility and intermittent connectivity of their hosts as they move from one publish/subscribe access point to another. In this paper, we describe a generic, value-added service that can be used in conjunction with publish/subscribe systems to achieve these goals. We detail the implementation of the service and present the results of our evaluation of the service in both wireline and emulated wireless environments.
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