MULTI-DIMENSIONAL ORHM COMMUNICATION METHOD-BASED DIGITAL COMMUNICATION SYSTEM
摘要
PURPOSE: A multi-dimensional ORHM(Orthogonal Resource Hopping Multiplexing) communication method-based digital communication system is provided to improve the channel decoding performance under the ORHM environment by installing an LLR(Log-Likelihood Ratio) converter at a secondary communication station. CONSTITUTION: A multi-dimensional ORHM communication method-based digital communication system includes an LLR converter(628) and a soft decision unit. The LLR converter(628) is located between a channel demodulator and a channel decoder of a receiving end. The LLR converter(628) is used for performing a LLR conversion process for an output value of the channel demodulator according to the resource hopping environment and inputting a result value into the channel decoder. The soft decision unit performs a soft decision process for an output value of the channel demodulator in order to limit the output value of the channel demodulator within a predetermined value.
申请公布号
KR20040032254(A)
申请公布日期
2004.04.17
申请号
KR20020061199
申请日期
2002.10.08
申请人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE;KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
发明人
JANG, GYEONG HUI;KWON, JAE GYUN;LEE, HUI SU;LEE, SEOK GYU;PARK, SU WON;SUNG, DAN GEUN