Mobile CORBA

The rapid developments in Internet software technologies in wireless networks need platform and language neutral distributed object-oriented components to manage and use different mobile devices and to provide services on top of them. We evaluate the Common Object Request Broker Architecture (CORBA) which is widely used middleware in the wireline network and present the performance results in different wireless systems. We found that message formats for communication between different object request brokers (ORB) as defined in the general inter-ORB protocol (GIOP) are optimized and further optimization will only result in reduced interoperability. We present a way of implementing and using CORBA in a wireless network and the results obtained. We present the use of the mobile IP at the network layer which takes care of mobility and handoff without requiring any change in the ORB. Thus we demonstrate a working implementation of mobile CORBA. We suggest a number of further improvements that should be incorporated in any implementation of CORBA to be used for wireless applications