At first, setting up the arith relation between the signal input and the signal output of the generalized multi-carrier system of the Discrete Fourier Test spread-spectrum; then setting equilibria parameters of the frequency field equilibria subcarrier of the generalized multi-carrier system of the DFT spread-spectrum according to channel frequency response, channel noise variance and equilibria method; then calculating average power of useful signal, interferential average power between signals as well as noise variance of the generalized multi-carrier system receiving terminal of the DFT spread-spectrum according to the arith relation as well as the frequency field equilibria parameter, and recomputing available signal information noise ratio, so as to calculate the available signal information noise ratio of the generalized multi-carrier transmission system accurately, the method for estimating the available signal information noise ratio can be used for link self-adapting transmission solution of the generalized multi-carrier system based on Discrete Fourier Test spread-spectrum and radio material management.
一种DFT扩频的广义多载波系统的SINR估计方法，其通过首先建立所述离散傅立叶变换扩频的广义多载波传输系统的信号输入输出之间的数学关系，然后根据信道频率响应、信道噪声方差和均衡方法，设定所述DFT扩频的广义多载波传输系统的频域均衡子载波的均衡系数，再根据所述数学关系及所述频域均衡系数分别计算所述DFT扩频的广义多载波传输系统接收端有用信号的平均功率、信号间干扰的平均功率以及噪声方差，再计算有效信干噪比，如此以实现对广义多载波传输系统的有效信干噪比的准确计算，该有效信干噪比估计方法可用于基于离散傅立叶变换扩频的广义多载波传输系统的链路自适应传输方案和无线资源管理方面。
Spatial subchannels in multiuser multiple-input multiple-output/orthogonal frequency-division multiplexing (MIMO/OFDM) systems were invested. With the goal of maximizing overall data throughput the criteria of subcarrier allocation was derived and an adaptive spatial subchannel allocation algorithm was proposed.
对多用户MIMO/OFDM系统空间子信道进行了研究，以获取最大的系统吞吐量为目标，推导了子载波分配准则，提出了一种自适应空间子信道分配算法，并给出了相应的算法流程。
Analysis of the estimation accuracy and the subcarrier channel capacity shows that the normalized mean square error of the algorithm is about 10^-2 for a 2-input-2-output OFDM-MIMO system with 1024 subcarriers and that the blind algorithm helps the system to achieve more capacity than that of training based systems in fast-varying channels.
仿真结果表明：2发2收，1024子载波的OFDM—MIMO系统在信噪比为20dB时盲估计的归一化均方误差约为10^-2。另外，子载波信道的容量结果表明，在信道变化较快时该文提出的盲估计算法相对于训练方法有明显的容量优势。
To satisfy the high rate data transmission and wireless multimedia, a method of adaptive modulation modes, subcarrier and power allocation is proposed for Multiple Input Multiple Output (MIMO) with Orthogonal Frequency Division Multiplexing (OFDM) systems.
为了满足无线多媒体和高速率数据传输的要求，本文研究了基于多入多出天线（MIMO）和正交频分复用（OFDM）自适应调制、子载波分配及功率分配方法。
The block coding algorithm of encoding input information sequence into Golay complementary sequence is studied by utilizing the relation between Golay complementary sequence and Reed-Muller code. The simulation of the PAPR characteristic for a 16-subcarrier OFDM system is processed based on the coding algorithm.
利用Golay互补序列和Reed-Muller码的关系，研究了一种把输入信息序列编成Golay互补序列的分组编码算法，并利用该编码算法对一个16子载波的OFDM系统的PAPR特性进行仿真。