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Description: 该文件夹为空间复用空时码的仿真程序,天线配置为2发2收。
主要程序的用途说明:
mainMIMO_OFDMA_2Tx.m: 主程序,设置各种参数
gendata_2Tx_SM.m: 生成原始信息数据的程序
mod_2Tx_SM_DFUSC.m:调制程序
gen_SUI_CorrCIR.m: 生成信道冲击响应的程序
get_perfectCE_2x2.m: 生成理想信道估计值的程序
chanSUI_corr_2x2.m: 发送信号通过SUI信道的程序
addAWGN_2x2.m: 添加高斯白噪声的程序
dem_DFUSC_2x2_SM.m: 接收端解调主程序
ls_freq.m: 频域LS算法
ls_time_2x2.m: 时域LS算法
ZeroForcing_Detection.m: 迫零检测算法
mmse_Detection.m: MMSE检测算法
sphere_decoding.m: 球形检测算法-The folder for space reuse the space-time simulation program code, antenna configuration for the two 2 admission. The main purpose procedures : mainMIMO_OFDMA_2Tx.m : The main program, gendata_2Tx_SM.m set various parameters : Data generated primitive procedures mod_2Tx_SM_DFUSC.m : gen_SUI_CorrCIR.m modulation procedures : Generation channel impulse response procedures get_perfectCE_2x2.m : Generation ideal channel estimation procedures chanSUI_corr_2x2.m : SUI transmitted signal through the channel addAWGN_2x2.m procedures : adding Gaussian white noise process dem_DFUSC_2x2_SM.m : receiver demodulator main program ls_freq.m : frequency-domain algorithm ls_time_2x2.m LS : time-domain algorithm ZeroForcing_Detection.m LS : Zero-forcing mmse_Detection.m Detection Algorithm : MMSE detection
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Size: 16384 |
Author: astraeawang |
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Description: 本文主要研究了W-WAN中GPRS网络的移动视频传输问题。文中探讨了GPRS的网络结构、协议体系以及链路特性,从中我们看出:
GPRS网络链路不仅具有一般无线链路数据传输中遇到的延迟大、误码率高等共性问题,而且具有移动通信系统采用蜂窝频率复用方式带来的小区切换,
以及由于通信中链路性能随着地理位置变换而变化造成的GPRS网络中不可避免的经常性遭遇的冗长时延和突变时延。
这使得目前GPRS网络中使用的传统TCP或UDP传输协议均不能适应GPRS自身的链路特性,也不能实现高效的分组传输。-This paper mainly studied the W-WAN in the GPRS network for mobile video transmission problems. The article discusses the GPRS network architecture, protocol architecture, as well as link characteristics, from which we can see: GPRS network link not only has the general wireless link data transmission delay encountered in large, common problems of higher bit error rate, and with mobile communications system uses a cellular frequency reuse methods brought about by cell switching, as well as the communication link performance with the location change and change is inevitable GPRS network, the recurrent encountered lengthy delay and delay mutation. This makes the current GPRS network using the traditional TCP or UDP transport protocol are unable to adapt its own GPRS link characteristics, but also efficient packet transmission can not be achieved.
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Size: 3594240 |
Author: QHLee |
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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.
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Size: 2048 |
Author: mame |
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Description: 移动电话主要采用频率复用,但分配给移动电话的频段很少,远不能满足用户的需要。
因此就提出将地区划分成小区,称为蜂窝(Cell),每个蜂窝内使用一组频率,相隔一段距离后,相同的频率又可重复使用。
-The main use of mobile phone frequency reuse, but allocated to the small-band mobile phone, far from being able to meet the needs of users. Therefore proposed to be divided into residential areas, known as cellular (Cell), each use a set of cellular frequencies, separated by some distance, the same frequency can be reused.
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Size: 1503232 |
Author: lypdl |
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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.
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Size: 180224 |
Author: 阿彪 |
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Description: sinr load with source code
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Size: 911360 |
Author: pradeep |
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Description: This a paper on frequency reuse factor-This is a paper on frequency reuse factor
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Size: 136192 |
Author: sachin |
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Description: ieee conference paper on wimax frequency reuse factor.
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Size: 696320 |
Author: sachin |
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Description: 关于OFDMA软频率复用的论文,有研究结论,很有借鉴价值,个人收藏-Soft frequency reuse on OFDMA papers, research findings, a very useful reference values, personal collection
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Size: 212992 |
Author: 刘硕 |
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Description: 关于软频率复用的matlab仿真,最后仿真出功率的分配-On the soft frequency reuse of matlab simulation, the final simulation the distribution of power
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Size: 1024 |
Author: yingtuzhang |
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Description: this document talk about the powe of the signal due to the frequency reuse
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Size: 1139712 |
Author: ali |
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Description: Addaptive soft frequency reuse ieee paper
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Size: 176128 |
Author: ram |
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Description: 介绍了3G,4G系统中所使用的软频率复用方法及其相应的算法。是一篇典型文献。-Introduced the 3G, 4G systems are used in the soft frequency reuse method and corresponding algorithm. Is a typical document.
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Size: 671744 |
Author: 李牧 |
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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.
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Size: 604160 |
Author: 李牧 |
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Description: 自适应软频率复用技术在长期演进中上行上的应用,主要是如何解决小区边缘干扰问题。对小区边缘干扰提出了自适应软频率复用算法。-Adaptive Soft Frequency Reuse for Inter-cell
Interference Coordination in SC-FDMA based
3GPP LTE Uplinks
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Size: 149504 |
Author: 龙辉 |
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Description: 一篇北京邮电大学的博士论文。蜂窝网协作通信及相关技术研究 2010。关键词:协作通信,蜂窝网,多入多出,正交频分复用,频率复用系数,中继
-A Beijing University of Posts and Telecommunications doctoral thesis. Cellular communications and related technology research collaboration 2010. Keywords: cooperative communication, cellular network, multi-input, multiple output, orthogonal frequency division multiplexing, frequency reuse factor, relay
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Size: 6375424 |
Author: |
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Description: Analytical Approach to Fractional Frequency Reuse in OFDMA Networks
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Size: 138240 |
Author: Sirisha |
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Description: this a graduation project presentation about advanced frequency reuse schemes and scheduling in LTE system, delivered by telecom engineering students at An-Najah National University.-this a graduation project presentation about advanced frequency reuse schemes and scheduling in LTE system, delivered by telecom engineering students at An-Najah National University.
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Size: 3456000 |
Author: jehad.mahmoud |
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Description: 要求做一个实验,对一副M*N大小的图像重复使用截频为D0的高斯低通滤波器进行滤波。假设K为滤波次数。当K足够大时,滤波结果是什么样?并从理论上说明这一结果产生的原因。
-Asked to do an experiment on a M* N image size cutoff frequency reuse as D0 Gaussian low-pass filter for filtering. Assuming K is the filter frequency. When K is large enough, the result is what kind of filter? Theoretically explain the reasons for this result produced.
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Size: 1024 |
Author: あかね |
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Description: Heirarchial resource allocation and frequency reuse schemes
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Size: 662528 |
Author: snehakm |
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