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In order to maximize system energy efficiency (EE) under user quality of service (QoS) restraints in Long Term Evolution-Advanced (LTE-A) networks, a constrained joint resource optimization allocation scheme is presented, which is NP-hard. Hence, we divide it into three sub-problems to reduce computation complexity, i.e., the resource block (RB) allocation, the power distribution, and the modulation...
Feeder topology representation method has an important impact on the research of distribution network. According to the structure of the feeder, this paper proposes a new representation method for feeder topology based on multiway tree. In the method, we take power, load, bus, and line in the feeder as nodes and take the switches as lines to connect the nodes to compose a multiway tree, which can...
In this paper, we use the TCP/IP protocol stack and PPP dialer integrated in single chip terminal to gather information, through GPRS wireless communications to connect internet, transmitting the data to the upper monitor to analysis and process, realizing the remote monitoring to the transmission towers' on-line monitoring to ensure the reliability of electricity and raise the ability of troubleshoot.
In this paper, we proposed a three-layer dynamic gateway strategy, which integrates mobile IP and AODV protocol. This is one kind of multi-gateway mechanisms. By using irregular nodes not attached fixed gateway as gateway in Ad Hoc network, network overload will decreased. And the efficiency of the network will increased. According to the distance, the registered number of nodes and traffic-weighted...
Online advertising is a rapidly growing industry currently dominated by the search engine 'giant' Google. In an attempt to tap into this huge market, Internet Service Providers (ISPs) started deploying deep packet inspection techniques to track and collect user browsing behavior. However, such techniques violate wiretap laws that explicitly prevent intercepting the contents of communication without...
With the developing of the integrated circuit design and fabrication technology gradually, system-on-chip (SoC) technology has been widely used because of its high performance such as small size, low power consumption and so on. This paper describes a digital three-phase SPWM signal generation SoC based on OpenRISC1200, a 32-bit RISC processor core. The system integrates parameter controlling, displaying...
For security and share of Internet IP addresses, NAT (network address translation) firewalls are widely used to isolate the private networks from Internet in some enterprises/organizations. Unfortunately, NATs block the data transmitted directly between two clients under different private networks in many P2P (peer to peer) applications. A protocol, STUN, has been proposed by IETF to solve the problem...
In this paper, a congestion avoidance routing algorithm is proposed to solve congestion problems in satellite IP networks. Because of long delay of satellite IP networks, congestions degrade performances of networks dramatically which can not be solved by current routing algorithms proposed in previous works. The routing algorithm named AARA is based on globally optimizing ant-algorithm, which is...
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