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: 跳频是按跳频序列随机改变一个信道所占有频道频率的技术。在GSM 系统中，可利用跳频技术频率分极和干扰分极的特点，改善网络质量。引入跳频技术，可保证在网络软拥塞不上升的情况下，频率复用度较小。-FH frequency hopping sequence is based on a random channel change in the country channel frequency technology. In the GSM system, can make use of frequency hopping technology sub-polar and polar characteristics of interference and improve network quality. The introduction of frequency-hopping technology to ensure that congestion in the network does not increase in the soft case, a smaller frequency reuse moment. Platform: |
Size: 180224 |
Author:阿彪 |
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Description: 宽带OFDM系统多基站合作的干扰协调技术的研究，是学习软频率复用的一种补充文献。-Broadband OFDM multi base station system, coordination of technical cooperation of the interference, the soft frequency reuse of learning as a complement to the literature. Platform: |
Size: 604160 |
Author:李牧 |
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Description: in this simulation we implement LTE schemes frequency reuse and we analysed interference co-chennel Platform: |
Size: 13312 |
Author:jdumejjger |
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Description: . The reference simulator can be used to measure and plot the network capacity performance and signal to interference ratio (SIR) performance of LTE networks with the integer frequency reuse scheme with reuse factor 1 (IFR-1). Frequency reuse scheme with reuse factor 1 means that the available frequency resource is used by all the cells in the LTE network. You are advised to refer to the relevant slides of lecture 5 to get more information on the method used to calculate the SIR and capacity performances.
The system level LTE is consisted of two Matlab script files (LTE_main.m, LTE_configuration.m), three Matlab function files (LTE_IFR_sim_dist.m, LTE_IFR_sim_netwide.m, LTE_IFR_plot.m) and one Matlab mat file (bs_user_position.mat). Platform: |
Size: 15360 |
Author:9a8b7c |
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Description: Recently, Long Term Evolution (LTE) has developed a femtocell for indoor coverage extension. However, interference problem between the femtocell and the macrocell should be solved in advance. In this code, I propose an interference management scheme in the LTE femtocell systems using Fractional Frequency Reuse (FFR). Under the macrocell allocating frequency band by the FFR, the femtocell chooses sub-bands which are not used in the macrocell sub-area to avoid interference. Simulation results show that proposed scheme enhances total/edge throughputs and reduces the outage probability in overall network, especially for the cell edge users. Platform: |
Size: 38912 |
Author:Manzar Hussain |
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Search - frequency reuse interference