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1. 发明授权

US07751491B2 Code design method for repeat-zigzag Hadamard codes 有权
标题翻译：重复锯齿Hadamard代码的代码设计方法
公开(公告)号：US07751491B2
公开(公告)日：2010-07-06
申请号：US11768591
申请日：2007-06-26
申请人： Kai Li , Guosen Yue , Xiaodong Wang , Mohammad Madihian
发明人： Kai Li , Guosen Yue , Xiaodong Wang , Mohammad Madihian
IPC分类号： H04L5/12
CPC分类号： H03M13/2972 , H03M13/033 , H03M13/1191 , H03M13/1197 , H03M13/356
摘要： A method for selecting a signal to noise ratio for a communications code includes obtaining extrinsic information transfer (EXIT) information for a repeat-zigzag Hadamard (RZH) code responsive to a Hadamard order and a signal to noise ratio, determining code parameters for an irregular repeat zigzag Hadamard (IRZH) code for a corresponding code rate in response to the obtained EXIT values, and repeating the step of obtaining the EXIT information for a different signal to noise ratio if the corresponding code rate is other than a selected rate. The corresponding code rate is related to a bit error rate. In a preferred embodiment, the step of obtaining EXIT information includes one of obtaining an EXIT curve for repeat-zigzag Hadamard code by Monte Carlo simulation using serial decoding or obtaining an EXIT function for parallel decoding of the repeat-zigzag Hadamard code by using equations.
摘要翻译：用于选择通信代码的信噪比的方法包括：响应于哈达玛级和信噪比获得用于重复锯齿哈达玛（RZH）码的外部信息传输（EXIT）信息，确定不规则的针对所获得的EXIT值重复Zigzag Hadamard（IRZH）代码以获得对应的码率，并且如果相应的码率不是所选择的速率，则重复获得不同信噪比的EXIT信息的步骤。相应的代码率与误码率有关。在优选实施例中，获得EXIT信息的步骤包括通过使用串行解码的Monte Carlo模拟获得重复锯齿Hadamard码的EXIT曲线，或通过使用等式获得用于并行解码重复锯齿形Hadamard码的EXIT函数之一。

2. 发明申请

US20080016426A1 Low-Complexity High-Performance Low-Rate Communications Codes 有权
标题翻译：低复杂性高性能低速率通信代码
公开(公告)号：US20080016426A1
公开(公告)日：2008-01-17
申请号：US11768585
申请日：2007-06-26
申请人： Kai Li , Guosen Yue , Xiaodong Wang , Mohammad Madihian
发明人： Kai Li , Guosen Yue , Xiaodong Wang , Mohammad Madihian
IPC分类号： H03M13/27
CPC分类号： H03M13/1194 , H03M13/01 , H03M13/1111 , H03M13/1125 , H03M13/29 , H03M13/296 , H03M13/45
摘要： An encoder includes an outer repetition encoder, an interleaver for permuting encoding from said outer repetition encoder; and an inner encoder for encoding information from the interleaver to provide a repeat zigzag-Hadamard code. In an exemplary embodiment, a common bit of a zigzag-Hadamard segment of encoding from said inner encoder is a repetition of a last parity bit of a previous zigzag-Hadamard segment of encoding from said inner encoder and said common bit is punctured.
摘要翻译：编码器包括外部重复编码器，用于从所述外部重复编码器排列编码的交织器; 以及内部编码器，用于对来自交织器的信息进行编码以提供重复锯齿形 - 哈达玛码。在示例性实施例中，来自所述内部编码器的编码的锯齿形 - 哈达玛段的公共位是来自所述内部编码器的先前之字形 - 哈达玛编码段的最后奇偶校验位的重复，并且所述公共位被删截。

3. 发明授权

US07730378B2 Low-complexity high-performance low-rate communications codes 有权
标题翻译：低复杂度的高性能低速率通信代码
公开(公告)号：US07730378B2
公开(公告)日：2010-06-01
申请号：US11768585
申请日：2007-06-26
申请人： Kai Li , Guosen Yue , Xiaodong Wang , Mohammad Madihian
发明人： Kai Li , Guosen Yue , Xiaodong Wang , Mohammad Madihian
IPC分类号： H03M13/00
CPC分类号： H03M13/1194 , H03M13/01 , H03M13/1111 , H03M13/1125 , H03M13/29 , H03M13/296 , H03M13/45
摘要： An encoder includes an outer repetition encoder, an interleaver for permuting encoding from said outer repetition encoder; and an inner encoder for encoding information from the interleaver to provide a repeat zigzag-Hadamard code. In an exemplary embodiment, a common bit of a zigzag-Hadamard segment of encoding from said inner encoder is a repetition of a last parity bit of a previous zigzag-Hadamard segment of encoding from said inner encoder and said common bit is punctured.
摘要翻译：编码器包括外部重复编码器，用于从所述外部重复编码器排列编码的交织器; 以及内部编码器，用于对来自交织器的信息进行编码以提供重复锯齿形 - 哈达玛码。在示例性实施例中，来自所述内部编码器的编码的锯齿形 - 哈达玛段的公共位是来自所述内部编码器的先前之字形 - 哈达玛编码段的最后奇偶校验位的重复，并且所述公共位被删截。

4. 发明申请

US20080008270A1 Code Design Method for Repeat-Zigzag Hadamard Codes 有权
标题翻译：重复曲折哈达玛码的代码设计方法
公开(公告)号：US20080008270A1
公开(公告)日：2008-01-10
申请号：US11768591
申请日：2007-06-26
申请人： Kai Li , Guosen Yue , Xiaodong Wang , Mohammad Madihian
发明人： Kai Li , Guosen Yue , Xiaodong Wang , Mohammad Madihian
IPC分类号： H04L27/06
CPC分类号： H03M13/2972 , H03M13/033 , H03M13/1191 , H03M13/1197 , H03M13/356
摘要： A method for selecting a signal to noise ratio for a communications code includes obtaining extrinsic information transfer (EXIT) information for a repeat-zigzag Hadamard (RZH) code responsive to a Hadamard order and a signal to noise ratio, determining code parameters for an irregular repeat zigzag Hadamard (IRZH) code for a corresponding code rate in response to the obtained EXIT values, and repeating the step of obtaining the EXIT information for a different signal to noise ratio if the corresponding code rate is other than a selected rate. The corresponding code rate is related to a bit error rate. In a preferred embodiment, the step of obtaining EXIT information includes one of obtaining an EXIT curve for repeat-zigzag Hadamard code by Monte Carlo simulation using serial decoding or obtaining an EXIT function for parallel decoding of the repeat-zigzag Hadamard code by using equations.
摘要翻译：用于选择通信代码的信噪比的方法包括：响应于哈达玛级和信噪比获得用于重复锯齿哈达玛（RZH）码的外部信息传输（EXIT）信息，确定不规则的针对所获得的EXIT值重复Zigzag Hadamard（IRZH）代码以获得对应的码率，并且如果相应的码率不是所选择的速率，则重复获得不同信噪比的EXIT信息的步骤。相应的代码率与误码率有关。在优选实施例中，获得EXIT信息的步骤包括通过使用串行解码的Monte Carlo模拟获得重复锯齿Hadamard码的EXIT曲线，或通过使用等式获得用于并行解码重复锯齿形Hadamard码的EXIT函数之一。

5. 发明授权

US07843802B2 Method for uplink multiuser OFM with constrained inputs 有权
标题翻译：具有约束输入的上行链路多用户OFM的方法
公开(公告)号：US07843802B2
公开(公告)日：2010-11-30
申请号：US11950037
申请日：2007-12-04
申请人： Guosen Yue , Xiaodong Wang , Mohammad Madihian
发明人： Guosen Yue , Xiaodong Wang , Mohammad Madihian
IPC分类号： H04J11/00 , H04J3/16 , H04L27/36
CPC分类号： H04W52/42 , H04L5/0007 , H04L5/0037 , H04L5/006 , H04L5/0064 , H04W52/346
摘要： A method setting a maximum number of determinations for computing power allocation responsive to allocating power among multiple users in one subchannel of an OFDM system; beginning determination of maximum sum-throughput of users in the OFDM system with a randomly generated power profile with an iteration including: i) computing a sum-throughput using a power profile; ii) keeping a previous power profile if the sum-throughput of the current power profile sum-throughput is less than the previous power profile sum-throughput; iii) finding an index of power profile that has maximum sum-throughput; and ascertaining power profiles when the iteration is complete.
摘要翻译：响应于在OFDM系统的一个子信道中的多个用户之间分配功率而设置用于计算功率分配的最大数量的确定的方法; 开始确定具有迭代的随机生成的功率分布的OFDM系统中的用户的最大和吞吐量，包括：i）使用功率分布计算和吞吐量; ii）如果当前功率曲线和吞吐量的和吞吐量小于先前的功率曲线和吞吐量，则保持先前的功率曲线; iii）找到具有最大和吞吐量的功率曲线的索引; 并在迭代完成时确定功率曲线。

6. 发明授权

US07660360B2 Peak-to-average power ratio reduction with threshold limited selection for coded OFDM systems 有权
标题翻译：峰值与平均功率比降低与编码OFDM系统的阈值限制选择
公开(公告)号：US07660360B2
公开(公告)日：2010-02-09
申请号：US11536263
申请日：2006-09-28
申请人： Guosen Yue , Xiaodong Wang , Mohammad Madihian
发明人： Guosen Yue , Xiaodong Wang , Mohammad Madihian
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L27/2618 , H04L1/0043 , H04L1/0057 , H04L1/0066 , H04L27/2617
摘要： Disclosed is a coded orthogonal frequency-division multiplexing (OFDM) system and method for reducing a peak-to-average power ratio (PAPR). The system and method include a modulator configured to modulate (e.g., using quadrature amplitude modulation (QAM)) coded bits into symbols. The system and method also include an inverse discrete fourier transform (IDFT) module to perform an IDFT on the symbols to produce an OFDM signal. The system and method measure the PAPR of the OFDM signal and transmit the signal to a receiver if the PAPR of the signal is less than a threshold PAPR.
摘要翻译：公开了用于降低峰均功率比（PAPR）的编码正交频分复用（OFDM）系统和方法。该系统和方法包括配置成将（例如，使用正交幅度调制（QAM））编码比特调制成符号的调制器。该系统和方法还包括对码元执行IDFT以产生OFDM信号的反离散傅里叶变换（IDFT）模块。如果信号的PAPR小于阈值PAPR，则该系统和方法测量OFDM信号的PAPR并将该信号发送到接收机。

7. 发明申请

US20090210757A1 Anti-Jamming Piecewise Coding Method for Parallel Inference Channels 有权
标题翻译：用于并行推理通道的抗干扰分段编码方法
公开(公告)号：US20090210757A1
公开(公告)日：2009-08-20
申请号：US12033306
申请日：2008-02-19
申请人： Guosen Yue , Xiaodong Wang , Mohammad Madihian
发明人： Guosen Yue , Xiaodong Wang , Mohammad Madihian
IPC分类号： H03M13/05 , G06F11/34 , G06F11/10
CPC分类号： H04L1/0009 , H04L1/0015
摘要： A method for encoding includes encoding K blocks of information for transmission on N subchannels responsive to a number of redundant blocks M according to one of i) employing a single parity check code when the number of redundant blocks M is about 1; ii) employing a code exhibited by a code graph having one third of variable nodes are connected to one of the check nodes, another one third of variable nodes is connected to the other check node and the remaining one third of variable nodes is connected to both check nodes, when the number of redundant blocks M is 2; iii) employing a first process for determining a code for the K blocks of information, when the number of redundant blocks M is about 3 together with K blocks of information less than about 150 or the number of redundant blocks M is about 4 together with K blocks of information less than about 20; and iv) employing a second process for determining a code for the K blocks of information with redundant block M values other than for steps i), ii) and iii).
摘要翻译：一种用于编码的方法包括：根据i）当冗余块M的数量大约为1时采用单个奇偶校验码时，对根据多个冗余块M的N个子信道进行传输的K个信息块进行编码; ii）使用具有三分之一变量节点的代码图表示的代码连接到一个校验节点，另一个三分之一的可变节点连接到另一个校验节点，剩下的三分之一的可变节点连接到两个当冗余块M的数量为2时，检查节点; iii）当冗余块M的数量大约为3时，采用用于确定K个信息块的代码的第一处理以及小于约150的K个信息块或冗余块M的数量与K一起为大约4 信息块小于约20; 以及iv）采用第二过程来确定除了用于步骤i），ii）和iii）之外的具有冗余块M值的K个信息块的代码。

8. 发明申请

US20060098747A1 Coded OFDM system and method with improved PAPR reduction 审中-公开
标题翻译：编码OFDM系统和减少PAPR的方法
公开(公告)号：US20060098747A1
公开(公告)日：2006-05-11
申请号：US10984177
申请日：2004-11-09
申请人： Guosen Yue , Xiaodong Wang , Mohammad Madihian
发明人： Guosen Yue , Xiaodong Wang , Mohammad Madihian
IPC分类号： H04K1/10
CPC分类号： H04L27/2615
摘要： A system and method is herein disclosed for reducing peak-to-average power ratio in an orthogonal frequency division multiplexing system which utilizes label bits inserted at predetermined locations of an information stream prior to encoding.
摘要翻译：这里公开了一种系统和方法，用于在正交频分复用系统中降低峰值与平均功率比，其利用在编码之前在信息流的预定位置插入的标签位。

9. 发明申请

US20070098094A1 Peak-to-Average Power Ratio Reduction with Threshold Limited Selection for Coded OFDM Systems 有权
标题翻译：峰值与平均功率比减少与编码OFDM系统的阈值限制选择
公开(公告)号：US20070098094A1
公开(公告)日：2007-05-03
申请号：US11536263
申请日：2006-09-28
申请人： Guosen Yue , Xiaodong Wang , Mohammad Madihian
发明人： Guosen Yue , Xiaodong Wang , Mohammad Madihian
IPC分类号： H04K1/10
CPC分类号： H04L27/2618 , H04L1/0043 , H04L1/0057 , H04L1/0066 , H04L27/2617
摘要： Disclosed is a coded orthogonal frequency-division multiplexing (OFDM) system and method for reducing a peak-to-average power ratio (PAPR). The system and method include a modulator configured to modulate (e.g., using quadrature amplitude modulation (QAM)) coded bits into symbols. The system and method also include an inverse discrete fourier transform (IDFT) module to perform an IDFT on the symbols to produce an OFDM signal. The system and method measure the PAPR of the OFDM signal and transmit the signal to a receiver if the PAPR of the signal is less than a threshold PAPR.
摘要翻译：公开了用于降低峰均功率比（PAPR）的编码正交频分复用（OFDM）系统和方法。该系统和方法包括配置成将（例如，使用正交幅度调制（QAM））编码比特调制成符号的调制器。该系统和方法还包括对码元执行IDFT以产生OFDM信号的反离散傅里叶变换（IDFT）模块。如果信号的PAPR小于阈值PAPR，则该系统和方法测量OFDM信号的PAPR并将该信号发送到接收机。

10. 发明申请

US20060242530A1 Method for constructing finite-length low density parity check codes 审中-公开
标题翻译：构建有限长度低密度奇偶校验码的方法
公开(公告)号：US20060242530A1
公开(公告)日：2006-10-26
申请号：US11095160
申请日：2005-03-31
申请人： Ben Lu , Guosen Yue , Xiaodong Wang , Mohammad Madihian
发明人： Ben Lu , Guosen Yue , Xiaodong Wang , Mohammad Madihian
IPC分类号： H03M13/00
CPC分类号： H03M13/356 , H03M13/1197
摘要： A technique for construction of finite-length low-density parity check (LDPC) codes is herein disclosed which advantageously provides a flexible tradeoff of low decoding thresholds and low error-floors.
摘要翻译：本文公开了一种用于构造有限长度低密度奇偶校验（LDPC）码的技术，其有利地提供了低解码阈值和低错误层的灵活折衷。

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