Extending cloud-based applications in challenged environments with mobile opportunistic networks

Cloud computing;Mobile computing;Ad hoc networks (Computer networks)

Pal, Shantanu ; Duncan, Ishbel Mary Macdonald ; Duncan, Ishbel Mary Macdonald

University:University of St Andrews

Department:Computer Science (School of)

关键词: Cloud computing;    Mobile computing;    Ad hoc networks (Computer networks);   

Others  :  https://research-repository.st-andrews.ac.uk/bitstream/handle/10023/8967/ShantanuPalMPhilThesis.pdf?sequence=2&isAllowed=y

来源: DR-NTU

【 摘 要 】

With the tremendous growth of mobile devices, e.g, smartphones,tablets and PDAs in recent years, users are looking for more advancedplatforms in order to use their computational applications(e.g., processing and storage) in a faster and more convenientway. In addition, mobile devices are capable of using cloud-basedapplications and the use of such technology is growing in popularity.However, one major concern is how to efficiently access thesecloud-based applications when using a resource-constraint mobiledevice. Essentially applications require a continuous Internet connectionwhich is difficult to obtain in challenged environmentsthat lack an infrastructure for communication (e.g., in sparseor rural areas) or areas with infrastructure (e.g., urban or highdensity areas) with restricted/full of interference access networksand even areas with high costs of Internet roaming. In these situationsthe use of mobile opportunistic networks may be extendedto avail cloud-based applications to the user.In this thesis we explore the emergence of extending cloud-basedapplications with mobile opportunistic networks in challengedenvironments and observe how local user’s social interactionsand collaborations help to improve the overall message deliveryperformance in the network. With real-world trace-driven simulations,we compare and contrast the different user’s behaviours inmessage forwarding, the impact of the various network loads (e.g.,number of messages) along with the long-sized messages and theimpact of different wireless networking technologies, in variousopportunistic routing protocols in a challenged environment.