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小区间干扰

小区间干扰的相关文献在1999年到2022年内共计706篇,主要集中在无线电电子学、电信技术、自动化技术、计算机技术、农作物 等领域,其中期刊论文106篇、会议论文9篇、专利文献76150篇;相关期刊64种,包括科学技术与工程、应用科学学报、南京邮电大学学报(自然科学版)等; 相关会议9种,包括第十七届全国信号处理学术年会、辽宁省通信学会2014年通信网络与信息技术年会、2014年中国通信建设学术会议等;小区间干扰的相关文献由1051位作者贡献,包括徐翰瞥、N·W·安德森、徐人权等。

小区间干扰—发文量

期刊论文>

论文:106 占比:0.14%

会议论文>

论文:9 占比:0.01%

专利文献>

论文:76150 占比:99.85%

总计:76265篇

小区间干扰—发文趋势图

小区间干扰

-研究学者

  • 徐翰瞥
  • N·W·安德森
  • 徐人权
  • 金沂濬
  • 魏巍
  • 金学成
  • 金炳勋
  • 王文博
  • 朱志球
  • 赵刚
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 刘焕淋; 蒲欣; 陈勇; 黄美娜; 陈金林
    • 摘要: 为了有效地管理VLC-WiFi异构网络的小区间干扰,该文设计基于用户中心接入的动态载波分配(DCAUCA)方法,该方法依据用户请求速率构建大小不同的multi-AP小区,对各multi-AP小区依据用户请求速率与网络服务速率的差值降序排列,并依次为各multi-AP小区的VLC AP分配载波.同时,提出基于VLC AP发射功率控制的小区残余干扰抑制(RISPC)策略以进一步优化干扰管理效果.仿真结果表明,DCAUCA方法相较于对比方法最高可提升52.15%的系统吞吐量与7.10%的用户满意度,RISPC策略相较于DCAUCA方法最高可提升9.66%的系统吞吐量.
    • 张柔佳; 占庆祥; 朱宇航; 谭国平
    • 摘要: 针对传统的小区内开环功率控制算法通常以提升本小区的吞吐量性能为目标,忽略了当前小区用户对邻小区用户同频干扰的问题,为提升边缘用户性能的同时兼顾系统整体性能,提出了一种LTE系统小区间上行联合功率控制(UJPC)算法.该算法采用单基站三扇区为系统模型,以最优化系统吞吐量比例公平函数为目标,首先根据最小信干噪比(SINR)约束值和用户最大发射功率这两个约束条件得到相应的数学优化模型,然后采用连续凸近似的方法求解优化问题得出各个基站所管辖的小区内所有用户的最优发射功率.仿真结果表明,与基准的开环功控方案相比,联合功控方案在保证系统平均频谱利用率的情况下能够较大幅度地提高小区边缘频谱利用率,其最佳性能增益能达到50%.
    • 摘要: 在蜂窝移动通信系统中,小区间的干扰严重限制着小区边缘用户的性能,而协作多点传输(Coordinated Multi-Point,CoMP)技术可以显著减少小区之间的干扰并改善边缘用户的性能.为了提升小区边缘用户的数据传输速率,本文针对CoMP系统提出一种基于图论的动态分簇算法.该算法利用图论的方法建立蜂窝网络的拓扑结构图,通过对小区间干扰的分析,能够同时生成多个簇大小不固定的协作簇,解决了簇大小固定和依次分簇所造成的系统受限问题.仿真结果表明,相比于其他分簇算法,本文算法在改善分簇的性能的同时降低了计算复杂度,并提高了系统的和速率.
    • 丁林
    • 摘要: 本文描述了在LTE系统中干扰形成原因以及网内常见MOD3干扰,给出了LTE网络常见MOD3干扰解决方案,利用网络优化.
    • 董玉慧; 纪云
    • 摘要: 针对小区间干扰,3GPP R12启动了网络辅助干扰消除(NAICS:Network-Assisted Interference Cancelation and Suppression)技术的研究.根据其依据的辅助信息的不同,NAICS技术可分为更高层信令辅助、CSI增强辅助、RRC信令辅助等研究领域,本文主要梳理了3GPP在这些领域的研究进展.
    • 谢斌; 刘述睿; 谢舒闽
    • 摘要: The precoding for massive multiple input multiple output (MIMO) systems was studied.To solve the problem that the inter-cell interference and pilot pollution have the great impact on the precoding effectiveness.An improved full pilot regularization zero forcing (RZF) precoding method was proposed.The method assigns the limited orthogonal pilot signal to the inter-cell users to optimize the channel vector in the precoding matrix to obtain the optimized full pilot normalized precoding matrix, and then deduces the new sum rate expression including the pilot pollution function and the users' interference functions.In addition, the method synthetically considers the number of base station antennas, the user number, and the pilot reuse factors, and optimizes their configuration to suppress the inter-cell interference with the less user information and the higher pilot reuse factor, thus the system performance is effectively improved.The experimental results show that the improved RZF precoding method can improve the system capacity.The spectrum efficiency and the sum rate are better than the traditional RZF method in both the cases of the perfect channel state information (CSI) situation and the imperfect CSI situation.%研究了大规模多输入多输出 (MIMO)系统的预编码.针对小区间干扰和导频污染会对预编码的有效性产生较大影响的问题,提出了一种改进的全导频正则化迫零(RZF)预编码方法.该方法通过将有限的正交导频信号分配给小区用户来对预编码矩阵中的信道向量进行优化,得到优化后的全导频正则化预编码矩阵,并依此推导出新的包含导频污染函数和用户干扰函数的和速率表达式.另外,综合考虑基站天线数、用户数以及导频重用因子,优化其配置关系,从而用较少的用户信息和更高的导频重用因子来抑制更多的小区间干扰,有效地提升系统性能.实验结果表明,这种改进的RZF预编码算法能够较好地提高系统容量,在完全已知信道状态信息(CSI)和未完全已知CSI两种情况下的频谱效率及和速率均优于传统的RZF方法.
    • 鞠晓杰; 李璞; 王雪; 申庆丰
    • 摘要: ICI (Inter-Cell Interference) is the key bottleneck in limiting the performance of mobile communication systems with full frequency reuse.Cooperative interference management schemes now become the focus of academic and industrial research,since it can suppress or even exploit the ICI effectively with the aid of information exchange among BSs (Base-Stations).Therefore,from the view of information exchange among BSs,cooperative interference management technologies may be divided into three classes:ideal cooperation,partial cooperation with CSI (Channel State Information) exchange,and partial cooperation with service data exchange.Meanwhile,the advantages and disadvantages of different cooperative interference management schemes are summarized from the aspects of spectral efficiency,multiuser diversity,and cooperation loss,thus to design more efficient cooperative interference management schemes.%小区间干扰是限制全频率复用移动通信系统性能的关键瓶颈.协作干扰管理技术通过基站间信息交换,能有效抑制甚至利用小区间干扰,已成为学术及工业界研究的热点.因此,从基站间交换信息方面出发,将协作干扰管理技术划分为理想协作、仅交换信道状态信息(CSI)的部分协作和仅交换业务数据的部分协作三类,并从频谱利用率、多用户分集、协作损耗等方面总结归纳不同协作干扰管理技术的优劣势,以期在此基础上设计出更为高效的协作干扰管理技术.
    • 纪辉; 董恒
    • 摘要: With the increasing scarcity of spectrum resource,the full frequency reusing technique has been taken more seriously.However,the inter-cell and intra-cell interference become the bottleneck of the system capacity in that scenario.System capacity can be sharply improved with the interference management scheme named distributed iteration interference alignment,meanwhile,with the drawback of high complexity.For three cells and two users in each cell MIMO broadcast interference channel,a linear interference alignment algorithm is proposed that can align the inter-cell and intra-cell interference.According to the characteristics of the equivalent channel model based on the QR decomposition of the joint channel matrix,each user can achieve Degree of Freedom (DoF) that is one-third of the channel space dimension with minimizing the interference leakage and zero-forcing.Moreover,just one pre-coding is processed in the receiver which can greatly reduce the complexity.The simulation results show that compared to the distributed iteration interference alignment algorithm with the same DoF for each user,the proposed algorithm can significantly decrease the complexity and guarantee system performance,even better in lower DoF situation.%随着频率资源日益紧缺,全频率复用技术受到重视,而该场景下小区间干扰和小区内干扰是制约系统容量的重要因素.分布式迭代干扰对齐作为一种干扰管理技术,能够大大提高小区的系统容量,但是具有复杂度高的缺陷.针对3小区2用户的MIMO下行干扰信道模型,提出了一种能够对齐小区间干扰、小区内干扰的线性干扰对齐算法.该算法对联合信道矩阵进行QR分解,再依据各小区等效信道模型的特征,利用最小化干扰泄露以及迫零算法对齐小区间以及小区内干扰,每用户能够实现其信道空间维度1/3的自由度,而接收端只需进行一次预编码处理,大大降低了接收端的复杂度.仿真结果表明,相比于分布式迭代干扰对齐算法,在实现每用户相同自由度的情况下,能够在保证系统性能的同时大大降低复杂度,甚至在低自由度下性能更优.
    • 陈昕
    • 摘要: 提出了一种针对扩展基站(BS)覆盖范围而引入的中继站(RS)的规划设计方法.对于给定的移动站(MS)分布,WiMAX网络中存在的问题是找出部署RS的位置.文中在考虑频率复用和由其引起的小区间干扰的情况下,提出了RS规划的优化算法,并对RS的位置进行模拟.所得模拟结果显示,与没有RS的情况相比,具有RS的网络容量增益和小区吞吐量得到提高.%This paper proposes a planning design method for extending the coverage area of base station (BS) by introducing the relay station (RS).For the given mobile station (MS) distribution, the problem present in WiMAX networks is to find location to place the RS.This paper simulates the location planning of RS based on the proposed algorithm by considering the frequency reuse and the inter-cell interference resulting from it.The simulation results show that the capacity gain of the network with RS and the throughput of the cell with RS are improved compared with that without RS.
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