Efficient algorithm for mobile multicast using anycast group

The authors present a novel and efficient multicast algorithm that aims to reduce delay and communication cost for the registration between mobile nodes and mobility agents and solicitation for foreign agent services based on the mobile IP. The protocol applies anycast group technology to support multicast transmissions for both mobile nodes and home/foreign agents. Mobile hosts use anycast tunnelling to connect to the nearest available home/foreign agent where an agent is able to forward the multicast messages by selecting an anycast route to a multicast router so as to reduce the end-to-end delay. The performance analysis and experiments demonstrated that the proposed algorithm is able to enhance the performance over existing remote subscription and bidirectional tunnelling approaches regardless of the locations of mobile nodes/hosts

Treaties as tools of foreign policy : a psychopolitical inquiry via Keatings's vision for Australia

Paul Keating will be remembered by some Australians as a visionary. As Prime Minister he outlined the structure of external and domestic reform that he believed would guarantee global security for all Australians. Driving these reforms, more often than not, were interstate agreements, often in the form of multilateral treaties, sometimes in the guise of bilateral compromise, rarely as unilateral declarations. In areas as diverse as collaborative scientific research or the protection of children in the workplace, the Keating Executive set out, through codification, to transform Australia’s political landscape. The fields of trade, military, environmental and human rights were all included in the attempts by Keating to forge a new image of and for Australia in the Asia Pacific region. Treaties were vital agents of change in this milieu in the bid to reformulate regional perceptions of Australia. The path of inquiry in this thesis stemmed from a quest to examine the origin, role, purpose and efficacy of treaties in the Keating Government’s foreign policy aimed at regional military security. In order to make this examination it develops a polyphonic1 analytical model whose purpose is to explore the psychopolitical underpinnings of these agreements. Thus the thesis has a two fold task. To develop an analytical model of how treaties work as tools of foreign policy and to outline and assess the Keating treaty strategy. Its principal contribution is on the theoretical side.