NetCoDer: A Retransmission Mechanism for WSNs Based on Cooperative Relays and Network Coding

Sensors

Carlos Montez¹  Gustavo Medeiros de Araujo²  Ricardo Moraes²  Odilson T. Valle³  Francisco Vasques⁴ 

[1] Department of Automation and System, UFSC—Federal University of Santa Catarina, Florianópolis 88040-900, Brazil;Department of Computing, UFSC—Federal University of Santa Catarina, Araranguá 88905-120, Brazil;IFSC—Federal Institute of Santa Catarina, São José 88130-310, Brazil;INEGI—Faculty of Engineering of University of Porto, Porto 4200-465, Portugal;

关键词: wireless sensor networks;    network coding;    linear network coding;    reliability;    retransmission techniques;    cooperative communication;   

DOI  :  10.3390/s16060799

来源: DOAJ

【 摘 要 】

Some of the most difficult problems to deal with when using Wireless Sensor Networks (WSNs) are related to the unreliable nature of communication channels. In this context, the use of cooperative diversity techniques and the application of network coding concepts may be promising solutions to improve the communication reliability. In this paper, we propose the NetCoDer scheme to address this problem. Its design is based on merging cooperative diversity techniques and network coding concepts. We evaluate the effectiveness of the NetCoDer scheme through both an experimental setup with real WSN nodes and a simulation assessment, comparing NetCoDer performance against state-of-the-art TDMA-based (Time Division Multiple Access) retransmission techniques: BlockACK, Master/Slave and Redundant TDMA. The obtained results highlight that the proposed NetCoDer scheme clearly improves the network performance when compared with other retransmission techniques.

【 授权许可】

Unknown