%0 Journal Article
%T Design of LDPC Codes over GF(q) for Bandwidth Efficient Transmission<br>带宽有效传输的GF(q)上LDPC编码设计
%A Lei Wei-jia
%A Li Xiang-ming
%A Li Guang-jun
%A <br>雷维嘉
%A 李祥明
%A 李广军
%J 电子与信息学报
%D 2007
%I 
%X Optimization of binary LDPC (Low-Density Parity-Check) codes for application to binary PSK modulation has been demonstrated in the literature, on the basis of Monte-Carlo method proposed by Davey(1998). The lack of rotational symmetry in a generic q-ary signal constellation, however, limits the application of Davey’s method. This paper proposes an efficient Davey-type Monte Carlo technique for code optimization within the category of quasi-regular codes, so that one can directly combine the optimized LDPC code over GF(q) with arbitrary q-ary modulation to achieve bandwidth efficiency in transmission. The validity of the proposed design procedure is illustrated through examples combining quasi-regular LDPC codes with MQAM and MPSK signaling schemes.
%K Low-Density Parity-Check Codes(LDPC)
%K Bandwidth efficient transmission
%K Monte-Carlo method<br>低密度奇偶校验(LDPC)码
%K 带宽有效传输
%K Monte-Carlo方法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=BEC0960F70A4F347&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=E158A972A605785F&sid=BEBF2238C7F1C1F1&eid=3E851F4852A9516C&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=2&reference_num=5