In this paper, we investigate the reliable data transport problem in underwater sensor networks. Underwater sensor networks are significantly different from terrestrial sensor networks in two aspects: acoustic channels are used for communication and most sensor nodes are mobile due to water current. These distinctions feature underwater sensor networks with low available bandwidth, large propag...

Bao, Tao Ph.D., Purdue University, December 2014. Reliable Data Processing Enabled by Program Analysis. Major Professor: Xiangyu Zhang. Errors pose a serious threat to the output validity of modern data processing, which is often performed by computer programs. In scientific computation, data are collected through instruments or sensors that may be exposed to rough environmental conditions, lea...

We developed a reliable mobile Peer-to-Peer (P2P) data sharing system and performed some experiments for verifying our routing scheme using our real testbed. Our method for guaranteeing reliable P2P data sharing mainly deals with the problem of disconnection due to the sudden disappearance of one or more nodes involved in the active transmission route. The routing scheme of our system allows fo...

Large quantities of information are shared through online social networks, making them attractive sources of data for social network research. When studying the usage of online social networks, these data may not describe properly users’ behaviours. For instance, the data collected often include content shared by the users only, or content accessible to the researchers, hence obfuscating a larg...

The author examines the problems of implementing a reliable IP-based protocol, including issues such as choosing timer algorithms, effecting congestion control mechanisms, and integration with the BSD operating system. A preliminary evaluation of the protocol is presented.