融合压缩感知与网络编码的多速率与变速率传输  

Multi-rate and variable-rate transmissions realized by merging compressive sensing with network coding

作　　者：司菁菁[1,2] 程银波[1] 

机构地区：[1]燕山大学信息学院,河北秦皇岛066004 [2]计算机软件新技术国家重点实验室(南京大学),江苏南京210093

出　　处：《重庆邮电大学学报（自然科学版）》2012年第5期573-576,共4页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：国家自然科学基金(60832001;61071200);河北省高等学校科学技术研究项目(Q2012087)~~

摘　　要：结合压缩感知与网络编码的优势,面向单信源异构信宿网络,研究压缩感知观测数据基于线性网络编码的多速率与变速率传输。研究压缩感知观测矩阵与网络编码全局编码核矩阵的联合等效,设计了一种融合有限域压缩感知与线性广播网络编码的精细粒度多速率传输方案;研究压缩感知观测矩阵、线性广播类型保持降维转换矩阵和网络编码全局编码核矩阵的联合等效,基于有限域压缩感知与变速率线性广播,为多媒体数据设计了一种变速率-多速率传输方案。In order to realize multi-rate and variable-rate transmissions for compressive sensed source data in single-source heterogeneous-receiver networks,the mergence of compressive sensing with network coding was studied over finite field.By studying the equivalent relationship between the measurement matrix of compressive sensing and the global encoding kernels of linear broadcast network code,we proposed a fine-granularity multi-rate transmission strategy.Furthermore,by studying the combination of measurement matrix,type-preserving dimension-decreasing conversion matrix and global encoding kernels of linear broadcast,we proposed a variable-rate transmission strategy for multimedia data,based on compressive sensing over finite field and variable-rate linear broadcasts.

关 键 词：压缩感知 网络编码 多速率 变速率 

分 类 号：TN919.8[电子电信—通信与信息系统]