中文摘要：

无线传感器网络中,设计可靠的网络协议是困难的.在协议设计中采用纠删码,发送端将数据进行编码并发送,接收端只要接收到足够多的编码包,就能够恢复原始数据包.在TinyOS系统中设计并实现了基于LT喷泉码的信息分发协议,在TOSSIM模拟环境中对其进行了性能评价.模拟结果表明,基于LT喷泉码的信息分发协议能够在降低网络负载的同时提高网络的可靠数据传输.

英文摘要：

In wireless sensor networks （WSNs）, it＇s difficult to design a reliable network protocol. Adopting the erasure codes in the protocol, the sender will send some encoded data. If the receiver receives enough encoded packet, then it can restore the original data packets. In this paper, an information dissemination protocol based on LT fountain codes is proposed and implemented in TinyOS platform. We make a performance evaluation in the TOSSIM. The simulation results show that the proposed information dissemination protocol based on LT fountain codes can improve the packet delivery ratio while reducing the number of packets to transmit.