In this paper,we investigate the coverage optimization for LTE networks considering the network load. The network coverage is defined as the number of served users of evolved Node B(eNB)which is determined by e NBs...In this paper,we investigate the coverage optimization for LTE networks considering the network load. The network coverage is defined as the number of served users of evolved Node B(eNB)which is determined by e NBs' antenna tilt angles(ATA). The coverage is optimized by optimizing the number of served users based on the Modified Particle Swarm Optimization(MPSO)algorithm. Simulation results show that both the number of served users by each e NB and the system throughput are significantly increased. As well,the average load and the bandwidth efficiency of the network are improved.展开更多
In this paper, transmission power control problem for uplink LTE network is investigated and a new autonomic uplink power control scheme was proposed based on utility function, which is a self- organized algorithm. Th...In this paper, transmission power control problem for uplink LTE network is investigated and a new autonomic uplink power control scheme was proposed based on utility function, which is a self- organized algorithm. The whole approach is based on the economic concept named utility function. Then a self-organized algorithm is distributed in each mobile users to control the transmission power and to maximize the transmission utility. The proposed scheme is solved through the Lagrange multiplier technique. It is proved that the utility function based algorithm optimal power level can be model. is applicable and the achieved based on our展开更多
In present scenario of wireless communications,Long Term Evolution(LTE)based network technology is evolved and provides consistent data delivery with high speed andminimal delay through mobile devices.The traffic mana...In present scenario of wireless communications,Long Term Evolution(LTE)based network technology is evolved and provides consistent data delivery with high speed andminimal delay through mobile devices.The traffic management and effective utilization of network resources are the key factors of LTE models.Moreover,there are some major issues in LTE that are to be considered are effective load scheduling and traffic management.Through LTE is a depraved technology,it is been suffering from these issues.On addressing that,this paper develops an Elite Opposition based Spider Monkey Optimization Framework for Efficient Load Balancing(SMO-ELB).In this model,load computation of each mobile node is done with Bounding Theory based Load derivations and optimal cell selection for seamless communication is processed with Spider Monkey Optimization Algorithm.The simulation results show that the proposed model provides better results than exiting works in terms of efficiency,packet delivery ratio,Call Dropping Ratio(CDR)and Call Blocking Ratio(CBR).展开更多
22 October 2012, Shenzhen-ZTE Corporation announced it has launched the industry＇s first PC-based capacity planning tool （CPT） for LTE networks. The CPT uses an innovative concept to overcome limitations in capacit...22 October 2012, Shenzhen-ZTE Corporation announced it has launched the industry＇s first PC-based capacity planning tool （CPT） for LTE networks. The CPT uses an innovative concept to overcome limitations in capacity planning technology. It provides operators with a professional, systematic aid for building the highest-performance networks.展开更多
19 November, 2012, Shenzhen-ZTE Corporation, a publicly listed global provider of telecommunications equipment, network solutions, and mobile devices, announced the launch of its Energy Saving Solution for operator LT...19 November, 2012, Shenzhen-ZTE Corporation, a publicly listed global provider of telecommunications equipment, network solutions, and mobile devices, announced the launch of its Energy Saving Solution for operator LTE networks. According to test results, a single site employing this solution can save up to 40 percent power.展开更多
ZTE Corporation,a leading global provider of telecommunications equipment and network solutions,has been named a Top 3 LTE Network Infrastructure Vendor by Gartner,the world’s leading information technology research
A fundamental requirement for any cellular system is the possibility for the device to request a connection setup, commonly referred to as random access procedure. In LTE （long term evolution） networks, the distribu...A fundamental requirement for any cellular system is the possibility for the device to request a connection setup, commonly referred to as random access procedure. In LTE （long term evolution） networks, the distribution of a limited number of radio resources among H2H （Human-to-Human） users and increasing number of MTC （Machine-Type-Communication） devices in M2M （Machine-to-Machine） communications is one of the main problems. An analytical model is conducted to compute the throughput for message 1 and message 2. This is done using a Markov chain model for the four messages signaling flow with buffering for message 4. This model is used in LTE 3GPP （Third-Generation Partnership Project） random access. The network performance will be enhanced by determining a dedicated arrival rate corresponding to maximum throughput of message 2 that will assist the network planner to optimize the network performance. In this paper, a deduced arrival rate less than 3.333 requests/ms will maximize network throughput.展开更多
Mobile network operators are facing many challenges to satisfy their subscribers in terms of quality of service and quality of experience provided. To achieve this goal, technological progress and scientific advances ...Mobile network operators are facing many challenges to satisfy their subscribers in terms of quality of service and quality of experience provided. To achieve this goal, technological progress and scientific advances offer good opportunities for efficiency in the management of faults occurring in a mobile network. Machine learning techniques allow systems to learn from past experiences and can predict, solutions to be applied to correct the root cause of a failure. This paper evaluates machine learning techniques and identifies the decision tree as a learning model that provides the most optimal error rate in predicting outages that may occur in a mobile network. Three machine learning techniques are presented in this study and compared with regard to accuracy. This study demonstrates that the appropriate machine learning technique improves the accuracy of the model. By using the decision tree as a machine learning model, it was possible to predict solutions to network failures, with an error rate less than 2%. In addition, the use of Machine Learning makes it possible to eliminate steps in the network failure processing chain;resulting in reduced service disruption time and improved the network availability which is a key network performance index.展开更多
QoS Optimization is an important part of LTE SON, but not yet defined in the specification. We discuss modeling the problem of QoS optimization, improve the fitness function, then provide an algorithm based on MPSO to...QoS Optimization is an important part of LTE SON, but not yet defined in the specification. We discuss modeling the problem of QoS optimization, improve the fitness function, then provide an algorithm based on MPSO to search the optimal QoS parameter value set for LTE networks. Simulation results show that the algorithm converges more quickly and more accurately than the GA which can be applied in LTE SON.展开更多
农村地区地理环境复杂、人口分散,长期面临通信覆盖不足、网络建设成本高和数字化服务支撑力弱等问题。为提升农村通信系统的覆盖广度与业务承载能力,设计一种基于长期演进(Long Term Evolution,LTE)技术的农村融合通信信息系统。该系统...农村地区地理环境复杂、人口分散,长期面临通信覆盖不足、网络建设成本高和数字化服务支撑力弱等问题。为提升农村通信系统的覆盖广度与业务承载能力,设计一种基于长期演进(Long Term Evolution,LTE)技术的农村融合通信信息系统。该系统以LTE为基础网络,结合超高速无线通信(Enhanced Ultra High Throughput,EUHT)技术与物联网接入技术,构建通信基础设施与多业务平台协同运行的网络架构。实验结果表明,该系统实现了终端接入灵活、数据传输稳定、服务响应高效的综合性能优化。展开更多
随着高速铁路的快速发展,铁路无线通信系统对高可靠性、低时延、大带宽提出更高要求。通过分析传统铁路综合数字移动通信系统(Global System for Mobile Communications–Railway,GSM-R)的技术瓶颈,研究铁路长期演进(Long Term Evolutio...随着高速铁路的快速发展,铁路无线通信系统对高可靠性、低时延、大带宽提出更高要求。通过分析传统铁路综合数字移动通信系统(Global System for Mobile Communications–Railway,GSM-R)的技术瓶颈,研究铁路长期演进(Long Term Evolution for Railways,LTE-R)网络架构、业务模型与接入网冗余组网的优化方案,提出基于LTE-R技术的铁路无线通信系统优化策略。最后,通过实际测试与对比实验,验证LTE-R技术在信号覆盖、时延、吞吐量以及切换性能方面的优势,为铁路无线通信系统的升级与智能化提供理论支撑。展开更多
为解决以LTE-5G(Long Term Evolution-5G)为代表的新一代移动通信技术存在的网络恶意节点检出效率较低、流量查证识别能力较弱等不足,提出了一种基于多维参数采样判决机制的LTE-5G网络恶意节点检出算法.首先,针对网络恶意节点行为所产...为解决以LTE-5G(Long Term Evolution-5G)为代表的新一代移动通信技术存在的网络恶意节点检出效率较低、流量查证识别能力较弱等不足,提出了一种基于多维参数采样判决机制的LTE-5G网络恶意节点检出算法.首先,针对网络恶意节点行为所产生的外溢流量特点,根据节点时域抽样特性及指纹特点,设计了多维参数采样判决机制,该机制通过采样鉴权序列定向匹配节点时域特征并筛除不符合特征的疑似恶意节点,从而达到较高的检测效果.其次,为进一步清除潜伏状态的恶意节点,结合微分机制,构建黑洞数据鉴权阈值,通过该阈值控制网络清洗流量,仅将高于该阈值的疑似节点予以清洗处理,从而降低误判情形,改善因节点离线而导致网络传输性能出现下降的现象.仿真实验表明,与当前常用的基于神经网络的加权投票鉴权机制的数据清洗方案和基于鲸鱼-狮子联合优化机制的数据清洗方案相比,本文算法具有更高的网络传输带宽和恶意节点检出率,以及更低的网络节点离线频次,在实践中具有较高的推广价值.展开更多
At present, the major drawback for mobile phones is the issue of power consumption. As one of the alternatives to decrease the power consumption of standard, power-hungry location-based services usually require the kn...At present, the major drawback for mobile phones is the issue of power consumption. As one of the alternatives to decrease the power consumption of standard, power-hungry location-based services usually require the knowledge of how individual phone features consume power. A typical phone feature is that the applications related to multimedia streaming utilize more power while receiving, processing, and displaying the multimedia contents, thus contributing to the increased power consumption. There is a growing concern that current battery modules have limited capability in fulfilling the long-term energy need for the progress on the mobile phone because of increasing power consumption during multimedia streaming processes. Considering this, in this paper, we provide an offline meaning sleep-mode method to compute the minimum power consumption comparing with the power-on solution to save power by implementing energy rate adaptation(RA) mechanism based on mobile excess energy level purpose to save battery power use. Our simulation results show that our RA method preserves efficient power while achieving better throughput compared with the mechanism without rate adaptation(WRA).展开更多
现有的针对高速铁路机车通信的信息集成方法效果并不理想,为此,文章提出基于铁路长期演进(Long Term Evolution for Railway,LTE-R)网络的高速铁路机车通信信息集成方法。基于LTE-R技术构建高速铁路机车通信信息集成模型,结合LTE-R网络...现有的针对高速铁路机车通信的信息集成方法效果并不理想,为此,文章提出基于铁路长期演进(Long Term Evolution for Railway,LTE-R)网络的高速铁路机车通信信息集成方法。基于LTE-R技术构建高速铁路机车通信信息集成模型,结合LTE-R网络算法提取高速铁路机车通信信息,采用Revit软件和收集器收集数据,实现高速铁路机车通信信息的统计与集成。实验结果证明,文章设计的基于LTE-R网络的高速铁路机车通信信息集成方法,对高速铁路机车通信信息集成的自动化程度较高,可节省99.99%的时间,具有较好的应用性能。展开更多
基金supported by National 863 Program(2014AA01A702)National Major Project(2013ZX03001032-004)+1 种基金National Natural Science Foundation(61221002 and 61201170)the Fundamental Research Funds for the Central Universities(CXLX13 093)
文摘In this paper,we investigate the coverage optimization for LTE networks considering the network load. The network coverage is defined as the number of served users of evolved Node B(eNB)which is determined by e NBs' antenna tilt angles(ATA). The coverage is optimized by optimizing the number of served users based on the Modified Particle Swarm Optimization(MPSO)algorithm. Simulation results show that both the number of served users by each e NB and the system throughput are significantly increased. As well,the average load and the bandwidth efficiency of the network are improved.
文摘In this paper, transmission power control problem for uplink LTE network is investigated and a new autonomic uplink power control scheme was proposed based on utility function, which is a self- organized algorithm. The whole approach is based on the economic concept named utility function. Then a self-organized algorithm is distributed in each mobile users to control the transmission power and to maximize the transmission utility. The proposed scheme is solved through the Lagrange multiplier technique. It is proved that the utility function based algorithm optimal power level can be model. is applicable and the achieved based on our
文摘In present scenario of wireless communications,Long Term Evolution(LTE)based network technology is evolved and provides consistent data delivery with high speed andminimal delay through mobile devices.The traffic management and effective utilization of network resources are the key factors of LTE models.Moreover,there are some major issues in LTE that are to be considered are effective load scheduling and traffic management.Through LTE is a depraved technology,it is been suffering from these issues.On addressing that,this paper develops an Elite Opposition based Spider Monkey Optimization Framework for Efficient Load Balancing(SMO-ELB).In this model,load computation of each mobile node is done with Bounding Theory based Load derivations and optimal cell selection for seamless communication is processed with Spider Monkey Optimization Algorithm.The simulation results show that the proposed model provides better results than exiting works in terms of efficiency,packet delivery ratio,Call Dropping Ratio(CDR)and Call Blocking Ratio(CBR).
文摘22 October 2012, Shenzhen-ZTE Corporation announced it has launched the industry＇s first PC-based capacity planning tool （CPT） for LTE networks. The CPT uses an innovative concept to overcome limitations in capacity planning technology. It provides operators with a professional, systematic aid for building the highest-performance networks.
文摘19 November, 2012, Shenzhen-ZTE Corporation, a publicly listed global provider of telecommunications equipment, network solutions, and mobile devices, announced the launch of its Energy Saving Solution for operator LTE networks. According to test results, a single site employing this solution can save up to 40 percent power.
文摘ZTE Corporation,a leading global provider of telecommunications equipment and network solutions,has been named a Top 3 LTE Network Infrastructure Vendor by Gartner,the world’s leading information technology research
文摘A fundamental requirement for any cellular system is the possibility for the device to request a connection setup, commonly referred to as random access procedure. In LTE （long term evolution） networks, the distribution of a limited number of radio resources among H2H （Human-to-Human） users and increasing number of MTC （Machine-Type-Communication） devices in M2M （Machine-to-Machine） communications is one of the main problems. An analytical model is conducted to compute the throughput for message 1 and message 2. This is done using a Markov chain model for the four messages signaling flow with buffering for message 4. This model is used in LTE 3GPP （Third-Generation Partnership Project） random access. The network performance will be enhanced by determining a dedicated arrival rate corresponding to maximum throughput of message 2 that will assist the network planner to optimize the network performance. In this paper, a deduced arrival rate less than 3.333 requests/ms will maximize network throughput.
文摘Mobile network operators are facing many challenges to satisfy their subscribers in terms of quality of service and quality of experience provided. To achieve this goal, technological progress and scientific advances offer good opportunities for efficiency in the management of faults occurring in a mobile network. Machine learning techniques allow systems to learn from past experiences and can predict, solutions to be applied to correct the root cause of a failure. This paper evaluates machine learning techniques and identifies the decision tree as a learning model that provides the most optimal error rate in predicting outages that may occur in a mobile network. Three machine learning techniques are presented in this study and compared with regard to accuracy. This study demonstrates that the appropriate machine learning technique improves the accuracy of the model. By using the decision tree as a machine learning model, it was possible to predict solutions to network failures, with an error rate less than 2%. In addition, the use of Machine Learning makes it possible to eliminate steps in the network failure processing chain;resulting in reduced service disruption time and improved the network availability which is a key network performance index.
文摘QoS Optimization is an important part of LTE SON, but not yet defined in the specification. We discuss modeling the problem of QoS optimization, improve the fitness function, then provide an algorithm based on MPSO to search the optimal QoS parameter value set for LTE networks. Simulation results show that the algorithm converges more quickly and more accurately than the GA which can be applied in LTE SON.
文摘农村地区地理环境复杂、人口分散,长期面临通信覆盖不足、网络建设成本高和数字化服务支撑力弱等问题。为提升农村通信系统的覆盖广度与业务承载能力,设计一种基于长期演进(Long Term Evolution,LTE)技术的农村融合通信信息系统。该系统以LTE为基础网络,结合超高速无线通信(Enhanced Ultra High Throughput,EUHT)技术与物联网接入技术,构建通信基础设施与多业务平台协同运行的网络架构。实验结果表明,该系统实现了终端接入灵活、数据传输稳定、服务响应高效的综合性能优化。
文摘随着高速铁路的快速发展,铁路无线通信系统对高可靠性、低时延、大带宽提出更高要求。通过分析传统铁路综合数字移动通信系统(Global System for Mobile Communications–Railway,GSM-R)的技术瓶颈,研究铁路长期演进(Long Term Evolution for Railways,LTE-R)网络架构、业务模型与接入网冗余组网的优化方案,提出基于LTE-R技术的铁路无线通信系统优化策略。最后,通过实际测试与对比实验,验证LTE-R技术在信号覆盖、时延、吞吐量以及切换性能方面的优势,为铁路无线通信系统的升级与智能化提供理论支撑。
文摘为解决以LTE-5G(Long Term Evolution-5G)为代表的新一代移动通信技术存在的网络恶意节点检出效率较低、流量查证识别能力较弱等不足,提出了一种基于多维参数采样判决机制的LTE-5G网络恶意节点检出算法.首先,针对网络恶意节点行为所产生的外溢流量特点,根据节点时域抽样特性及指纹特点,设计了多维参数采样判决机制,该机制通过采样鉴权序列定向匹配节点时域特征并筛除不符合特征的疑似恶意节点,从而达到较高的检测效果.其次,为进一步清除潜伏状态的恶意节点,结合微分机制,构建黑洞数据鉴权阈值,通过该阈值控制网络清洗流量,仅将高于该阈值的疑似节点予以清洗处理,从而降低误判情形,改善因节点离线而导致网络传输性能出现下降的现象.仿真实验表明,与当前常用的基于神经网络的加权投票鉴权机制的数据清洗方案和基于鲸鱼-狮子联合优化机制的数据清洗方案相比,本文算法具有更高的网络传输带宽和恶意节点检出率,以及更低的网络节点离线频次,在实践中具有较高的推广价值.
基金supported by X-Project funded by the Ministry of Science,ICT&Future Planning under Grant No.NRF-2015R1A2A1A16074929
文摘At present, the major drawback for mobile phones is the issue of power consumption. As one of the alternatives to decrease the power consumption of standard, power-hungry location-based services usually require the knowledge of how individual phone features consume power. A typical phone feature is that the applications related to multimedia streaming utilize more power while receiving, processing, and displaying the multimedia contents, thus contributing to the increased power consumption. There is a growing concern that current battery modules have limited capability in fulfilling the long-term energy need for the progress on the mobile phone because of increasing power consumption during multimedia streaming processes. Considering this, in this paper, we provide an offline meaning sleep-mode method to compute the minimum power consumption comparing with the power-on solution to save power by implementing energy rate adaptation(RA) mechanism based on mobile excess energy level purpose to save battery power use. Our simulation results show that our RA method preserves efficient power while achieving better throughput compared with the mechanism without rate adaptation(WRA).
文摘现有的针对高速铁路机车通信的信息集成方法效果并不理想,为此,文章提出基于铁路长期演进(Long Term Evolution for Railway,LTE-R)网络的高速铁路机车通信信息集成方法。基于LTE-R技术构建高速铁路机车通信信息集成模型,结合LTE-R网络算法提取高速铁路机车通信信息,采用Revit软件和收集器收集数据,实现高速铁路机车通信信息的统计与集成。实验结果证明,文章设计的基于LTE-R网络的高速铁路机车通信信息集成方法,对高速铁路机车通信信息集成的自动化程度较高,可节省99.99%的时间,具有较好的应用性能。
