期刊名称:Journal of Computer Networks and Communications
印刷版ISSN:2090-7141
电子版ISSN:2090-715X
出版年度:2009
卷号:2009
DOI:10.1155/2009/409853
出版社:Hindawi Publishing Corporation
摘要:Standard protocols for reliable data transmission over unreliable channels are based on various Automatic Repeat reQuest (ARQ) schemes, whereby the sending node receives feedback from the receiver and retransmits the missing data. We discuss this issue in the context of one-way data transmission over simple wireless channels characteristic of many sensing and monitoring applications. Using a specific project as an example, we demonstrate how the constraints of a low-cost embedded wireless system get in the way of a workable solution precluding the use of popular schemes based on windows and periodic acknowledgments. We also propose an efficient solution to the problem and demonstrate its advantage over the traditional protocols.