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Two important issues have arisen in 5G wireless communications: spectral efficiency and energy efficiency. The existing wireless communication architectures and technologies may not be able to address these two issues at the same time for 5G multi-tier networks where users in different tiers have different priorities for channel access. In this article, we first present the motivation for our proposal...
It is envisioned that home networks will shift from current machine-to-human communications to the machine-to-machine paradigm with the rapid penetration of embedded devices in home surroundings. In this article, we first identify the fundamental challenges in home M2M networks. Then we present the architecture of home M2M networks decomposed into three subareas depending on the radio service ranges...
A VPN uses IPSec framework to provide data integrity, data reliability authentication and against replay at the network layer. These features can protect the private data at a high security level but also bring additional pressure to the installations. In this paper, we will describe our IPSec VPN based security gateway system which can process private data in several Giga bps, using Intel's IXP2850...
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