网络诗歌本体研究  

Construction Method of QC-LDPC Codes in Optical Communication Systems

作　　者：袁建国 刘文龙 黄胜 王永 宋蓓蓓 

机构地区：重庆邮电大学光纤通信技术重点实验室,重庆400065

出　　处：《北京邮电大学学报》2013年第3期20-24,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(61071117,61003256);重庆市自然科学基金项目(2010BB2409);重庆市教委项目(KJ110519)

摘　　要：网络诗歌自诞生之日,因不同于传统诗歌的诸多特性而受到各方持续关注,一时间各类研究纷至沓来,但多将研究放在其传播方式、文化特征以及对传统的颠覆等方面。本文将目光重新聚焦网络诗歌本身,首先从其身份界定入手,借用＂网络文学＂相关定义,肯定其作为诗歌一种的合法性;同时将其常见形态划分为纸介质文本电子化后上传的诗歌、网民原创与网络首发的诗歌及超文本诗歌三种,并分别予以解读。之后从广义和狭义两个角度对网络诗歌的外在诗体与内在诗意进行深度剖析。最后对网络诗歌呈现出的口语化、讽刺性等语言特征进行阐释,试图还原网络诗歌最为本真的一面。To meet the increasing requirement on the transmission characteristics of optical communica- tion systems, based on the structure of parity-check matrix of Richardson-Urhanke algorithm, a lower- complexity constructing method is proposed for the quasi-cyclic low-density parity-check （QC-LDPC） codes in the optical communication systems, and a QC-LDPC （4288,4020） code with 93.7% higher code-rate is also constructed. Simulation shows that the constructed QC-LDPC （4288,4020） code has net coding gain of about 1.7 dB over the classic RS（255,239） code which has been widely used for optical communication systems and 0.3 dB more than that of SCG-LDPC （3969,3720） code with the same 93.7% higher code-rate, and the NCG of the QC-LDPC （4288,4020） code is about 1.3 dB away from the Shannon limit at bit error rate BER of 10-7; furthermore, the error floor of QC-LDPC（4288,4020） code is lower than that of the randomly constructed LDPC（4288,4020） with the column weight of 3.

关 键 词：网络诗歌 身份 外在形式 诗意 语言 

分 类 号：TN929.53[电子电信—通信与信息系统]