SC-FDMA

Efficient time domain channel estimation for MIMO SC-FDMA systems

一种适用于MIMOSC-FDMA系统的高效时域信道估计

An Initial Ranging Detection Algorithm Based on Peak-Filtering in SC-FDMA System

基于峰值过滤的SC-FDMA系统的测距检测方法

On the whole , SC-FDMA system has lower PAPR than OFDMA system .

从整体上来看，SC-FDMA系统比OFDMA系统有较小的PAPR。

The Peak-Average Power Ratio Reduction Method Based on Statistic Companding for SC-FDMA Systems

SC-FDMA系统中基于统计压扩的峰均功率比减小方法

Comparison of PAPR between two mapping mode of SC-FDMA

SC-FDMA两种映射方式的PAPR比较分析

In recent years , SC-FDMA technology is continuing developing due to the studies of many experts and scholars .

近年来，SC-FDMA技术在众多专家学者的深入研究下也在不断地成熟起来。

At the same time , compared to OFDMA technology , SC-FDMA technology is lower about the peak performance .

同时相比于OFDMA技术，SC-FDMA技术具有更低的峰均比性能。

Compared with OFDM , a prominent advantage of SC-FDMA is lower PAPR .

与OFDM相比，SC-FDMA的一个突出优势是具有较低的PAPR，因此，SC-FDMA被选为LTE上行链路的多址接入技术。

Using different frequency domain equalization algorithms and modulations , the SC-FDMA system performance is analysised in this paper .

结合不同频域均衡和调制方式，仿真分析SC-FDMA系统性能。

Last , a host computer program is developed to test the bit error ratio of the SC-FDMA system which is implemented on DSP .

最后开发了上位机程序对DSP实现的SC-FDMA系统进行误码率测试。

SC-FDMA is a technology using single-carrier modulation and frequency-domain equalization , has the property of low PAPR .

而SC-FDMA（单载波频分多址）是一种使用单载波调制和频域均衡的技术，具有低PAPR这一显著特性。

The choice of SC-FDMA in uplink was fuelled by its low peak-to-average power ratio ( PAPR ) .

上行选择SC-FDMA是由于其具有较低的峰均功率比（PAPR）。

SC-FDMA is not only easy to be realized but also can overcome the inter-symbol interference due to the multi-path mobile channel propagation .

SC-FDMA技术不仅实现简单，而且能够有效克服无线通信信道的多径效应引起的符号间干扰。

In addition , the paper according to the traditional LS and MMSE channel estimation algorithm , estimated a simulation study based on the channel of the SC-FDMA system .

此外，论文根据传统的LS和MMSE信道估计算法，对基于SC-FDMA系统的信道估计进行了仿真研究。

Due to the limited power of the uplink , SC-FDMA enjoying the advantages of low PAPR , has gradually been accepted as the first uplink technology .

由于上行链路的功率有限，SC-FDMA峰均功率比低的优势逐渐明显，而被接受为上行链路首先的技术。

Orthogonal frequency division multiple access ( OFDM ) is used in downlink , and single carrier frequency division multiple access ( SC-FDMA ) has been adopted in uplink .

下行采用正交频分多址（OFDM），而上行是采用单载波频分多址（SC-FDMA）。

LTE-Advanced system uplink multiple-access technology is SC-FDMA ( Signal Carrier-Frequency Division Multiple Access ) technology which is based on lower PAPR ( Peak to Average Power Ratio ) .

其上行链路多址技术是基于具有较低峰均比的单载波频分多址接入（SC-FDMA）技术。

The efficient spectrum utilization of MIMO and low PAPR characteristic of SC-FDMA have made MIMO SC-FDMA become LTE / LTE-Advanced standard access scheme for uplink transmission .

MIMO高效率的频谱利用率和SC-FDMA的低峰均比特性，使得MIMOSC-FDMA成为LTE/LTE-Advanced上行传输的标准接入方案。

OFDMA and SC-FDMA are the multiple-access versions of OFDM which has similar modulation scheme , Single-Carrier Frequency-Domain Equalization ( SC-FDE ) .

0FDMA和SC-FDMA均属于0FDM多址方案，也有类似的调制方式和单载波频域均衡（SC-FDE）。

In order to reduce the peak-average power ratio ( PAPR ) of single carrier-frequency division multiple access ( SC-FDMA ) system , a new method based on statistic companding was proposed .

为了减小单载波频分多址接入系统（SC-FDMA）的峰均功率比（PAPR），提出了基于统计压扩的新方法。

Firstly , new core technology , such as MIMO and OFDM , is studied . And then the multiple access technology of OFDMA and SC-FDMA used in the uplink and downlink is discussed .

首先研究LTE所采用的MIMO、OFDM等核心新技术，其次总结上下行链路采用的OFDMA及SC-FDMA多址方式。

In the end , the essay summarized the full text work , according to the difficulty point of SC-FDMA technology , the paper puts forward several improvement areas to prompted SC-FDMA technology more mature and perfect .

文章最后对全文所做工作进行总结，针对LTE-A上行SC-FDMA技术的难点，提出在本文基础上可以进行进一步研究的关键点，使SC-FDMA技术更加成熟和完善。

SC-FDMA is a new kind of FDMA system which was submitted in recent years . It has the same PAPR property as single carrier system and its resource scheduling is as flexible as multi-carrier system .

SC-FDMA是近年来国际上提出来的一种既具备单载波系统功率峰均比，又具备多载波通信实现简单和资源调度灵活特性的新型频分多址通信系统。

In order to achieve a lower peak power to reduce the loss of the transmitter in the LTE uplink , we choose single carrier frequency division multiplexing ( SC-FDMA ) for uplink transmission scheme .

为了在上行传输链路中实现较低的峰均比以降低发送端功率的损耗，LTE选用单载波频分复用技术（SC-FDMA）作为上行链路的传输方案。

Simulation results show that with the increase of filter roll-off factor , the PAPR of SC-FDMA system will reduce ; with the increase of numbers of system subcarriers , the PAPR of SC-FDMA system will increase .

仿真结果表明随着滤波器滚降系数的增加，SC-FDMA系统的PAPR会减小；而随着系统子载波数目的增加，SC-FDMA系统的PAPR会增大。

The simulation results show that the improved algorithm can improve the probability of correct bits which used to initialize the feedback of H-DFE in SC-FDMA system and inhibit possible error propagation and improved the overall BER performance .

仿真结果表明，改进算法极大的提高了时频混合均衡器反馈部分初始化比特的正确概率，抑制了可能出现的错误传播，提高了整体的误码率性能。

An interference cancellation of timing synchronization algorithm for single-user MIMO SC-FDMA system is proposed in this paper , in order to improve the impact about multi-antenna interference , brought about by the small value of timing offset .

文中针对单用户MIMOSC-FDMA系统中由小值定时偏差引起的多天线干扰问题，提出一种基于干扰消除技术的定时同步算法。

In this project I analyze the PAPR of SC-FDMA and analytically derive the time domain SC-FDMA signals and numerically compare PAPR characteristics using the complementary cumulative distribution function ( CCDF ) of PAPR .

在这篇论文中，我分析了SC-FDMA的PAPR并且解析地导出SC-FDMA的时域信号，并利用PAPR的互补累积分布函数（CCDF）对它们的PAPR特征进行数值比较。

SC-FDMA has effective capacity of anti-interference , and it can achieve a lower peak-average power ratio . It is the wireless transmission technology of mobile communications in the uplink air interface in the 3rd generation cellular long-term evolution .

它不仅可以有效地对抗信道的频率选择性衰落，而且能取得较低的峰值平均功率比，是目前第3代蜂窝移动通信的长期演进空中接口在上行链路采用的无线传输技术。

In recent years , in order to satisfy lot of wireless services , growing data requirement , and wider bandwidth , 3GPP have to give up CDMA and make the OFDM based technologies OFDMA and SC-FDMA the radio access technology of LTE .

近年来，为了满足无线数据业务多样化以及不断增长的数据需求，为了支持更大的带宽配置，3GPP不得不放弃了CDMA，将以OFDM为基础的OFDMA/SC-FDMA作为LTE的无线接入传输技术展开研究。