88 research outputs found

    Submission to the Attorney-General’s Department on the Exposure Draft Telecommunications and Other Legislation Amendment Bill 2015

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    EXECUTIVE SUMMARY As has been stated in previous submissions to Government, the Associations acknowledge Government’s desire to protect telecommunications infrastructure and the information transmitted across it from unauthorised access and interference. Indeed, Australian Carriers, Carriage Service Providers and Carriage Service Intermediaries (C/CSPs) and other industry participants have an active and vested interest in ensuring that the nation’s networks and communications infrastructure are robust and resistant to external attack. Industry is, however, unable to support the proposed Telecommunications Sector Security Reform (TSSR), as described in the exposure draft legislation, for reasons including that it constitutes regulatory ‘over-reach’ in the form of a framework that: will face challenges protecting communications networks, i.e. it will not deliver the increased protection the proposed reforms are aiming to achieve; is out of step with regulatory approaches to protecting networks adopted in other countries, including the UK, USA and Canada, thereby putting Australia at a disadvantage in fighting cyber threats and undermine Industry’s ability to support these important peers; hands unjustifiably significant additional and intrusive powers to Government and places regulatory burdens on Industry that will undermine its ability to protect against and respond to cyber attacks; risks being highly disruptive to the deployment of new network technologies that are more robust in preventing cyber attacks; will be a significant deterrent to technological investment in Australia; imposes additional costs on Industry and (ultimately) consumers undermining Australia’s competitiveness at a time when digital innovation is an important area for growth for Australia; fails to offer protection/indemnity to C/CSPs against the risk of civil litigation through ‘safe harbours’, thereby limiting information sharing and the ability to quickly respond to threats and to jointly engage in preventative action; carries the risk that competition in infrastructure supply will be reduced, to the detriment of all Australians; lacks transparency; and fails to provide adequate consultative mechanisms and avenues of appeal

    Forward focus: using routing information to improve medium access control in ad hoc networks

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    Summary Multihop packet forwarding is a vital process in an ad hoc network. All ad hoc networking protocols, but particularly routing and medium access control protocols, must work together in order for the network to be successful. However, current MAC protocols such as IEEE 802.11 do not consider this multihop nature at all. This work develops a modification to 802.11 that focuses on forwarding packets. Routing information is utilized to streamline the sharing of the medium, by allowing forwarding nodes to reuse an already-acquired channel. Using forward focus (FF), nodes are encouraged to participate in the forwarding process and are rewarded for doing so. Simulation-generated performance evaluations reveal that the result is a MAC protocol with improved efficiency and effectiveness

    TwiddleNet: Smartphones as Personal Servers

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    TwiddleNet uses smartphones as personal servers to enable instant content capture and dissemination for firstresponders. It supports the information sharing needs of first responders in the early stages of an emergency response operation. In TwiddleNet, content, once captured, is automatically tagged and disseminated using one of the several networking channels available in smartphones. TwiddleNet pays special attention to minimizing the equipment, network set-up time, and content capture and dissemination effort. It can support small operations of emergency responders in the first 48-72 hours of an emergency response by using handheld devices based infrastructure and scale up to handle hundred of users with more robust backend infrastructure

    ポスト4G移動体通信と規格標準化に係わる環境的課題

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    1 研究の背景と目的 2 第三世代通信の騒乱 3 第三世代通信時代の閉塞感 4 第四世代通信とVoLTEの矛盾 5 WiMAXとLTE:歪んだ勢力図 6 「脱Qualcomm」を阻む壁 7 IMT-AdvancedとIMT-2020の意義 8 知的財産権を巡る場外戦 9 結

    Memory-Based User-Centric Backhaul-Aware User Cell Association Scheme

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    Ultra-dense small cell networks represent a key future network solution that can help meet the exponentially rising traffic requirements of modern wireless networks. Backhauling these small cells are an emerging challenge to the extent that various cells are likely to have different backhaul constraints. The user-centric backhaul scheme has been proposed in the literature to jointly exploit the diversity in users' requirement and backhaul constraints. In this paper, we propose a novel scheme, termed the memory-based hybrid scheme, which additionally also exploits the predictability in a user's mobility. We compare the novel scheme to two variants of memory-less user-centric backhaul implementations and show significant gains in convergence time (15%), user-centric KPIs (51% and 82%) at the negligible cost 2% loss in cumulative throughput. The novel scheme requires additional memory in user-devices to store learned values, which is nonetheless well justified in view of the considerable gains achieved

    EAB 4533 MOBILE COMMUNICATIONS

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