Message Oriented Middleware Support for Mobile Ad Hoc Data Sharing

Message oriented middleware (MOM) is an infrastructure of message passing on wired networks that supports integrity of application modules distributed over heterogeneous platforms. MOM service for mobile computing have become of increasing concern, in particular, with the development of wireless network and the popularity of mobile devices. However, re-using traditional MOM has to deal with problems arisen in mobile computing environments, i.e., low bandwidth, low power, mobility and limited computing resources. In this paper, we propose a mobile MOM framework in support of data sharing in a mobile computing environment. In our mobile MOM, XML-coded data are enveloped in messages, passed thought a mobile host dynamically and asynchronously connected with MOMs executed on fixed hosts, then shared among a grouped mobile hosts by using replication and reconciliation over ad-hoc networks. Experimental results show our mobile MOM system enables transparent sharing of XML data across heterogeneous mobile hosts, allowing a level of fault-tolerance using message queues and data integrity using conflict resolution schemes.