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Nowadays, users can move, deposit and withdraw the resources of network wantonly. That is due to the wireless network which is flourishing, and the hold-device which is more and more popular. The traditional net is lack of considering user's moving states and information. So it will cause a lot of loopholes and incidents of security. In this paper, we propose a security management scheme for heterogeneous...
With rapid development of wireless technologies, current user mobile devices can support to access various wireless networks such as Wi-Fi 802.11 Wireless LANs, 3G cellular networks, etc. Due to requirements of multicast mobility for multimedia services, the convergence of wired and wireless network has been a necessary trend in Next Generation Networks (NGN). The issues of multicast and mobility...
From the channel assignment schemes in time division multiple access (TDMA) slot assignment protocols developed in previous studies, we have found that these protocols do not have a convenient frame length reduction scheme after the expansion of the frame length. As the network size grows, the frame length expands rapidly, particularly when we set it as a power of two. A very long frame may result...
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