欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
本文研究了协作分集下的NDMA（网络辅助分集多址接入）机制,针对无线传感器网络特点和信道矩阵满秩性要求设计中继选择准则,提出了一个新的跨层协作多包接收机制.该机制在抗信道衰落的同时可有效限制数据包重传次数,从而大大提高多包接收的效率.对新机制的性能仿真以及该机制与NDMA、联合NDMA、时隙ALOHA之间的性能对比证实了新机制的有效性.
英文摘要：
A novel multi-packet reception scheme in wireless sensor networks （WSN） based on network-assisted diversity multiple access （NDMA） is proposed,which exploits cooperative diversity to overcome multi-path fading and selects relay nodes according to the characteristics of WSN and full-rank requirements of channel matrix using cross-layer methods,During the slots following the collision,a set of nodes designated as relays will cooperate with source nodes and destimation node to form virtual antenna array and retransmit the signals that they received during the collision slot, The proposed scheme can effectively limit retransmaission times and achieve higher throughput than slotted ALOHA and other NDMA methods, Simulation results validate the proposed scheme.
同期刊论文项目
同项目期刊论文
期刊信息
位置：