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	Dynamic network coded cooperative OFDM for underwater data collection
	Chen, Youga ; Sun, Haixin ; Wan, Lei ; Wang, Zhaohui ; Zhou, Shengli ; Xu, Xiaomei ; Chen YG(陈友淦) ; Sun HX(孙海信) ; Xu XM(许肖梅)
	2012
关键词	Data acquisition Orthogonal frequency division multiplexing Underwater acoustics
英文摘要	Conference Name:OCEANS 2012 MTS/IEEE Hampton Roads Conference: Harnessing the Power of the Ocean. Conference Address: Virginia Beach, VA, United states. Time:October 14, 2012 - October 19, 2012.; Marine Technology Society (MTS); Oceanic Engineering Society of IEEE (IEEE/OES); In this paper, we consider an underwater data collection problem, where multiple underwater nodes need to send data to one common destination. With the conventional ARQ protocol, the destination requests retransmission from each node individually without any node cooperation. We propose two protocols, selective relay cooperation and dynamic network coded cooperation, utilizing the fact that underwater nodes can overhear the transmission of others. In the selective relay cooperation, one node can be selected as a relay to transmit the data from another undecoded node in the retransmission round. In the network coded cooperation, the selected relay nodes transmit network coded packets, combining the packets from several undecoded nodes to the destination. The relay nodes participating the cooperation are selected by the destination based on the measured pilot signal to noise ratio of the underlying OFDM modulation. Simulation results based on one specific underwater topology show that the proposed schemes can achieve significant gains compared with the conventional ARQ scheme. 漏 2012 IEEE.
语种	英语
出处	http://dx.doi.org/10.1109/OCEANS.2012.6404899
出版者	IEEE Computer Society
内容类型	其他
源URL	[http://dspace.xmu.edu.cn/handle/2288/85339]
专题	海洋环境－会议论文
推荐引用方式 GB/T 7714	Chen, Youga,Sun, Haixin,Wan, Lei,et al. Dynamic network coded cooperative OFDM for underwater data collection. 2012-01-01.

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