Disruption-tolerant networking protocols and services for disaster response communication

Disruption-tolerant networking;sensor networks;routing protocols;participatory sensing applications;redundancy reduction techniques;diversity-aware caching

Uddin, Md Yusuf

关键词: Disruption-tolerant networking;    sensor networks;    routing protocols;    participatory sensing applications;    redundancy reduction techniques;    diversity-aware caching;   

Others  :  https://www.ideals.illinois.edu/bitstream/handle/2142/42297/Md%20Yusuf_Uddin.pdf?sequence=1&isAllowed=y

美国|英语

来源: The Illinois Digital Environment for Access to Learning and Scholarship

【 摘 要 】

This thesis investigates, and contributes thereto, the promise of networkingtechnologies and data processing techniques for efficient and effective informationdissemination in the context of disasters. Disasters hinder usual communicationexperiences of people, and thereby calls for different approachesto meet communication needs. This is because traditional communicationoptions, e.g., the Internet, may not be available after a disaster due to infrastructuredamage or power outage. As a sign of hope, average individualsthese days possess numerous wireless devices, such as smart mobile phonesand tablets, with various device-to-device connectivity options, such as WiFiand Bluetooth. These devices with their capabilities can be harnessed ina disaster aftermath in the form of a disruption-tolerant network (DTN).DTN copes with intermittent connectivity among devices by using persistentstorage and by transporting data packets exploiting mobility of nodes. Ourdissertation efforts augment DTN literature with a new set of protocols andapplication services by leveraging specificities that arise in disaster context.From a boarder perspective, we divide our efforts into two main threadsconsidering two key aspects of DTNs: i) mobile nodes and ii) moving content,that is, in DTNs node move and they generate moving content. Accordingly,in order to improve network efficiency and to design effective content disseminationprotocols, we need to investigate mechanisms of two main categories:(i) exploiting physical mobility patterns of nodes, and (ii) exploiting logicalproperties of content generated by mobile nodes. Specifically, we leverage re-currence, as an example of exploiting mobility patterns of nodes, and proposea routing protocol, called inter-contact routing (ICR) that exploits recurrencein its core design. Later, we explore redundancy, as an example of exploitingproperties of content, and propose redundancy reduction and in-networkcontent prioritization techniques for different application services we build,namely PhotoNet, PhotoNet+ and diversity caching.