Description: This program shows the distributions of the co-channel interference in forward and reverse link in the cellular mobile system with cluster size N, when the mobile subscriber (MS) is at random positions of a cell. -This program shows the distributions of the co-channel interference in forward and reverse link in the cellular mobile system with cluster size N, when the mobile subscriber (MS) is at random positions of a cell. Platform: |
Size: 3072 |
Author:conan |
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Description: 对fdma和scfdma仿真性能的比较，可以清晰具体的比较峰均比的性能-Of FDMA and scfdma simulation performance, we can clear and specific PAPR performance comparison Platform: |
Size: 3072 |
Author:蔡航俊 |
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Description: 把地理区域分成一个个小区，蜂窝系统在该区域内提供无线覆盖。把可用的频谱分成很多信道，每个小区分配一组信道。使用频分双工（FDD）。在小区间进行频率利用，N个小区构成一个簇，簇间进行频率复用。定义了传播特性（信道参数）以及同频小区的位置。信道的参数包括：小区半径，路径损耗指数，以分贝为单位的对数正态阴影的标准差，基站发射功率级，移动台发射功率级，每个小区的扇区数，扇区化天线的正反向比，要仿真的瞬时位置的组数，同频干扰阈值。-To a geographical area is divided into small areas, cellular systems in the region to provide wireless coverage. The available spectrum is divided into multi-channel, each plot the distribution of a group of channels. The use of frequency division duplex (FDD). In the district between the frequency of use, N plots constitute a cluster, cluster between frequency reuse. The definition of the propagation characteristics (channel parameters), as well as with the frequency of residential location. Channel parameters include: cell radius, path loss index to decibels for units Lognormal shadow of the standard deviation, the base station transmitter power level, mobile station transmitting power level, the number of sectors in each district, sector of the antenna the pros and cons to the ratio, to the transient simulation of the group a few positions, the same frequency interference threshold. Platform: |
Size: 2048 |
Author:mame |
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Description: 对传统的多小区系统中的干扰控制技术进行了简单的回顾,对多用户和多用户MIMO系统中的干扰抑制技术进行分析，这些是后续对多小区MIMO研究的基础。重点对多小区MIMO系统展开深入研究，揭示了系统干扰受限的原因，将单用户和多用户的千扰抑制技术扩展到多小区系统，分别给出了基于接收端和发送端的多种抑制干扰的系统结构和算法，推导了其容量并进行了性能分析。同时也结合实际系统的设计对各种干扰抑制技术进行比较和评价，得到了许多对于系统设计具有参考价值的结论。-he traditional system of multi-cell interference control technology a simple review of multi-user and multi-user MIMO system analysis of the interference suppression techniques, which are the follow-up of multi-cell MIMO research. Emphasis on the multi-cell MIMO system launched an in-depth study revealed the system interference limited reasons, single-user and multi-user interference suppression techniques extended to multi-cell systems, respectively, gives the receiver and sender based on a variety of interference suppression The system architecture and algorithms derived its capacity and conducted performance analysis. But also with the actual system design on a variety of interference suppression techniques to compare and evaluate system design by many for a reference value is reached. Platform: |
Size: 4056064 |
Author:方周 |
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Description: OFDMA subchannel allocation has been wellstudied.
However, most of the available literature considers a
single cell system without cochannel interference. We present a
novel intercell interference avoidance scheme, in which the
downlink OFDMA subchannels are allocated through intercell
coordination in a multicell environment. The proposed scheme not
only aims to achieve maximized network throughput but also
focuses on providing improved throughput for cell or sector edge
users that are most affected by intercell interference Platform: |
Size: 311296 |
Author:sim |
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Description: INTER-CARRIER INTERFERENCE CANCELLATION FOR OFDM SYSTEMS:
Orthogonal Frequency Division Multiplexing (OFDM) is an emerging multi-carrier modulation scheme, which has been adopted for several wireless standards such as IEEE 802.11a and HiperLAN2. A well-known problem of OFDM is its sensitivity to frequency offset between the transmitted and received carrier frequencies. This frequency offset introduces inter-carrier interference (ICI) in the OFDM symbol. This project investigates three methods for combating the effects of ICI: ICI self-cancellation (SC), maximum likelihood (ML) estimation, and extended Kalman filter (EKF) method. These three methods are compared in terms of bit error rate performance, bandwidth efficiency, and computational complexity. Through simulations, it is shown that the three techniques are effective in mitigating the effects of ICI. For high values of the frequency offset and for higher order modulation schemes, the ML and EKF methods perform better than the SC method. Platform: |
Size: 390144 |
Author:redami |
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Description: 本文提出了一种可以用于LTE系统的干扰协调方案，该方案中小区间通过X2接口进行信令交互，从而进行干扰协调。-In this paper, we propose an interference avoidance scheme for LTE downlink that uses dynamic inter-cell coordination facilitated through X2 interface among neighbouring evolved UTRAN nodeBs Platform: |
Size: 451584 |
Author:huoyudizhonghai |
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Description: 小区间干扰协调技术研究代码，利用matlab编程实现-Inter-cell interference coordination technology research code, the use of matlab programming Platform: |
Size: 362496 |
Author:施政 |
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Description: The signal received by a user over the forward link in such a high data rate system contains interference from the neighboring base stations. we note that the strength of this interference is a function of the network load in the neighboring cells. we obtain an expression for the received SINR (Signal to Interference and Noise Ratio) as a function of the traffic load in the interfering cells. Using this result, we propose an improvement to the SINR estimation scheme that is implemented in the current cellular data network. The proposed scheme provides a more accurate estimate of the user SINR by taking better account of the contribution of inter-cell interference. It builds on top of the current SINR measurement scheme by using a combination of pilot measurement and traffic load measurement-The signal received by a user over the forward link in such a high data rate system contains interference from the neighboring base stations. we note that the strength of this interference is a function of the network load in the neighboring cells. we obtain an expression for the received SINR (Signal to Interference and Noise Ratio) as a function of the traffic load in the interfering cells. Using this result, we propose an improvement to the SINR estimation scheme that is implemented in the current cellular data network. The proposed scheme provides a more accurate estimate of the user SINR by taking better account of the contribution of inter-cell interference. It builds on top of the current SINR measurement scheme by using a combination of pilot measurement and traffic load measurement Platform: |
Size: 1024 |
Author:suresh |
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Description: The signal received by a user over the forward link in such a high data rate system contains interference from the neighboring base stations. we note that the strength of this interference is a function of the network load in the neighboring cells. we obtain an expression for the received SINR (Signal to Interference and Noise Ratio) as a function of the traffic load in the interfering cells. Using this result, we propose an improvement to the SINR estimation scheme that is implemented in the current cellular data network. The proposed scheme provides a more accurate estimate of the user SINR by taking better account of the contribution of inter-cell interference. It builds on top of the current SINR measurement scheme by using a combination of pilot measurement and traffic load measurement-The signal received by a user over the forward link in such a high data rate system contains interference from the neighboring base stations. we note that the strength of this interference is a function of the network load in the neighboring cells. we obtain an expression for the received SINR (Signal to Interference and Noise Ratio) as a function of the traffic load in the interfering cells. Using this result, we propose an improvement to the SINR estimation scheme that is implemented in the current cellular data network. The proposed scheme provides a more accurate estimate of the user SINR by taking better account of the contribution of inter-cell interference. It builds on top of the current SINR measurement scheme by using a combination of pilot measurement and traffic load measurement Platform: |
Size: 1024 |
Author:suresh |
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Description: 这是用于通信系统中MIMO干扰对齐的算法，此算法通过对齐多小区干扰，提高通信系统的性能。(This is used in the MIMO communication system of interference alignment algorithm that by aligning the multi-cell interference and improve performance of the communication system.) Platform: |
Size: 5120 |
Author:ZJX |
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Search - cell interference