公开(公告)号：WO2012036366A1

公开(公告)日：2012-03-22

申请号：PCT/KR2011/003255

申请日：2011-05-02

Applicant: 전북대학교산학협력단 ,  김수영 ,  김영민

Inventor： 김수영 ,  김영민

IPC: H04L27/26

CPC classification number: H04L25/067 ,  H04L1/0631 ,  H04L1/0643

Abstract: 연판정 검출방법 및 이를 이용한 복호 방법이 제공된다. 본 복호 방법은, 수신 심볼을 STBC 복호하여 송신 심볼을 추정하고, 추정된 송신 심볼을 구성하는 비트들에 대한 중간 연판정 값들을 각각 산출한 후, 산출된 연판정 값들에 특정 이득을 곱하여 최종 연판정 값들을 각각 산출하며, 산출된 최종 연판정 값들을 이용하여 추정된 송신 심볼을 반복 복호한다. 이에 의해, 기존 MLD 방식과 비교하여 복잡도 감소를 얻을 수 있으면서도 동일한 성능 결과를 얻을 수 있게 된다.

Abstract translation: 公开了一种软判决检测方法和使用该方法的解码方法。 在解码方法中，通过对接收符号进行STBC解码来估计发送符号，分别对包含在估计的发送符号中的位分别计算中间软判定值，然后分别通过将计算出的软 通过特定增益的判定值，并且通过使用所计算的最终软判决值来重复地解码所估计的发送符号。 以这种方式，与现有的MLD技术相比，可以实现复杂度的降低，同时也可以实现相同的性能结果。

公开(公告)号：KR1020120104824A

公开(公告)日：2012-09-24

申请号：KR1020110022460

申请日：2011-03-14

Applicant: 한국전자통신연구원 ,  전북대학교산학협력단

Inventor： 정준영 ,  최동준 ,  허남호 ,  김영민 ,  김수영 ,  송상섭

IPC: H04L27/22 ,  H04L27/38 ,  H03M13/11

CPC classification number: H04L25/067 ,  H04L27/0008

Abstract: PURPOSE: A single demodulator for soft-decision bit detection is provided to reduce complexity by calculating a soft decision value of each bit only using one time simple distance calculation of a received symbol and a predetermined hard decision boundary value. CONSTITUTION: A demodulator calculates an I(In phase) channel value corresponding to a horizontal axis value and a Q(Quadrature) channel value corresponding to a vertical axis value in a process of mapping a symbol about a received signal by constellation(300). The demodulator determines the I channel value and the Q channel value as an initial soft-decision bit value for first and second bits(400). The demodulator cyclically calculates the initial soft-decision bit value for third and more bits based on the initial soft-decision bit value for the first and second bits(500). The demodulator multiplies a gain to all initial soft-decision bit values calculated by a detection flow chart(600). [Reference numerals] (300) Calculation of an I(In phase) channel value (Re{s}) and a Q(Quadrature) channel value (Im{s}) for a received signal; (400) Initial soft-decision bit value for first and second bits; b1=Re{S}, b2=Im{s}; (500) Repetitive calculation of the initial soft-decision bit value for a third bit based on the initial soft-decision bit value of the first and second bits; (600) Multiplying all calculated initial soft-decision bit values by a gain; bj=2/σ^2|H|bj,|

Abstract translation: 目的：提供用于软判决比特检测的单个解调器，以通过仅使用接收符号的一次简单距离计算和预定硬判决边界值来计算每个比特的软判决值来降低复杂度。 构成：在通过星座图（300）映射关于接收信号的符号的处理的过程中，解调器计算对应于水平轴值的I（相位）通道值和对应于垂直轴值的Q（正交）通道值。 解调器将I信道值和Q信道值确定为第一和第二比特（400）的初始软判决比特值。 解调器基于第一和第二比特（500）的初始软判决比特值，循环地计算第三和更多比特的初始软判决比特值。 解调器将增益乘以由检测流程图（600）计算的所有初始软判决比特值。 （附图标记）（300）对于接收信号计算I（同相）信道值（Re {s}）和Q（正交）信道值（Im {s}）; （400）第一位和第二位的初始软判决位值; b1 = Re {S}，b2 = Im {s}; （500）基于第一和第二比特的初始软判决比特值重复计算第三比特的初始软判定比特值; （600）将所有计算的初始软判决比特值乘以增益; BJ = 2 /σ^ 2 | H | BJ，| <= j的<= log2M

公开(公告)号：KR101060530B1

公开(公告)日：2011-08-30

申请号：KR1020100090629

申请日：2010-09-15

Applicant: 전북대학교산학협력단

Inventor： 김수영 ,  김영민

IPC: H04L27/26

CPC classification number: H04L25/067 ,  H04L1/0631 ,  H04L1/0643

Abstract: PURPOSE: A soft-decision detecting method and a deciphering method using the same are provided to improve big complexity compare with an MLD(Maximum Likelihood Detection) mode by elementarily applying a linear detection. CONSTITUTION: An STBC(Space-time Block Coding) deciphering unit estimates a transmission symbol by deciphering a received symbol(S310). A soft-decision detection unit produces in-between soft decision values about bits comprising the presumed transmission symbol by each bitwise(S320). The soft-decision detection unit produces final soft decision values by multiplying the in-between soft decision values by a specific gain(S330). A repetition deciphering unit restores a source binary signal by repetitively deciphering using vector heat(S340).

Abstract translation: 目的：提供一种软判决检测方法和使用该判定方法的解密方法，以通过元素地应用线性检测来提高与MLD（最大似然检测）模式相比的复杂度。 构成：STBC（空时块编码）解密单元通过对接收到的符号进行解密来估计发送符号（S310）。 软判决检测单元通过每个按位产生关于包含假设的传输符号的位的软判决值（S320）。 软判决检测单元通过将中间软判决值乘以特定增益来产生最终软判决值（S330）。 重复解密单元通过使用向量热重复解密来恢复源二进制信号（S340）。