摘要
面向延迟容忍移动传感器网络,提出一种基于网络编码的高效广播数据传输机制(NEBT),基站传感器节点将原始广播数据分批进行编码,以此来降低节点间的数据相似度,降低广播时延;同时,传感器节点根据自身的广播增益,根据邻居节点相对自身运动趋势准确选择数据交互时机,降低通信开销.仿真结果表明,与常见的泛洪等机制相比,NEBT能进一步降低广播时延并大幅度降低通信开销.
A netcoding-based efficient broadcast transmission scheme （NEBT） is proposed for delay tol- erant mobile sensor network. In NEBT, the original data packages are coded and batched transmitted by base station and sensor nodes. Because the packages are encoded, the correlation of data between sensor nodes is low, that is helpful in reducing the delay of broadcasting. Meanwhile, the sensor nodes can com- pute their own broadcasting gains and detect the moving trends to their neighbors. Based on moving trends, the sensor nodes can decide the time to transmit their packages and then decrease the cost of broadcasting. Simulation shows that NEBT scheme has lower broadcast delay and overhead than that of flood and others.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
2013年第1期91-95,共5页
Journal of Beijing University of Posts and Telecommunications
基金
国家自然科学基金项目(61101108
61070204)
国家重大科技专项项目(2011ZX03002-005-01)
河南省科技创新杰出青年计划项目(104100510025)
