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Fundamental challenges in mobile computing

M. Satyanarayanan
1996 Proceedings of the fifteenth annual ACM symposium on Principles of distributed computing - PODC '96  
Finally, it describes the research opportunities in five important topics relevant to mobile computing: caching metrics, semantic callbacks and validators, resource revocation, analysis of adaptation,  ...  The paper begins by describing a set of constraints intrinsic to mobile computing, and examining the impact of these constraints on the design of distributed systems.  ...  Disconnected Operation in the Coda File System. ACM Transactions on Computer Systems 10(1), February, Adaptation is the key to mobility.  ... 
doi:10.1145/248052.248053 dblp:conf/podc/Satyanarayanan96 fatcat:j63bylsgfbflze4ockfw2yzrt4

A research status report on adaptation for mobile data access

Brian D. Noble, M. Satyanarayanan
1995 SIGMOD record  
Mobility demands that systems be adaptive. One approach is to make adaptation transparent to applications, allowing them to remain unchanged.  ...  We report on our considerable experience with application-transparent adaptation in the Coda File System. We also describe our ongoing work on application-aware adaptation in Odyssey.  ...  The primary vehicle for our research has been the Coda File System, a descendant of AFS that provides mobile clients with shared file access.  ... 
doi:10.1145/219713.219730 fatcat:7um4mjcz2zannd32cgbt32d2aq

Client-server computing in mobile environments

Jin Jing, Abdelsalam Sumi Helal, Ahmed Elmagarmid
1999 ACM Computing Surveys  
We provide a comprehensive analysis of new paradigms and enabler concepts for mobile client-server computing, including mobile-aware adaptation, extended client-server model, and mobile data access.  ...  A comparative and detailed review of major research prototypes for mobile information access is also presented.  ...  Weakly Connected Operations: The file system proxy pre-fetches server data into the client cache and uses object or volume 1 callbacks for the cache validation in order to support weak connectivity.  ... 
doi:10.1145/319806.319814 fatcat:z2sqksxrrra4jivrtdpevobirm

Communications and consistency in mobile file systems

P. Honeyman, L.B. Huston
1995 IEEE personal communications  
Lying between these are modes of operation that refine the consistency semantics of cached files, allowing a mobile client to select a mode appropriate for the the prevailing network conditions.  ...  To overcome availability, latency, bandwidth, and cost barriers of mobile networks, mobile clients of distributed file systems switch between connected and disconnected modes of operation.  ...  Acknowledgements We thank Warren Widmayer and Rob Malan for their penetrating insights, and Andy Adamson, Dan Hyde, and Denise Miller for their careful reading.  ... 
doi:10.1109/98.475987 fatcat:qf7frtz4ybdnjdvhtr26jl6tm4

Wukong: A cloud-oriented file service for mobile Internet devices

Huajian Mao, Nong Xiao, Weisong Shi, Yutong Lu
2012 Journal of Parallel and Distributed Computing  
In this paper we design and implement a novel cloud-oriented file service, Wukong, which provides a user-friendly and highly-available facilitative data access method for mobile devices in cloud settings  ...  By evaluating a prototype in a systematic way on the aspects of the supporting interface, system performance, and the system resource cost, we find that this easily operable file service has a high usability  ...  ACKNOLOGYMENT We would like to thank the anonymous reviewers for their valuable feedback and suggestions.  ... 
doi:10.1016/j.jpdc.2011.10.017 fatcat:s7flwxvy55ekrjavdaxvr3nzjq

Exploiting weak connectivity for mobile file access

L. B. Mummert, M. R. Ebling, M. Satyanarayanan
1995 Proceedings of the fifteenth ACM symposium on Operating systems principles - SOSP '95  
Many aspects of the system, including communication, cache validation, update propagation and cache miss handling have been modified.  ...  In this paper, we describe how the Coda File System has evolved to exploit such networks.  ...  The quest for adaptivity has resulted in major changes to many aspects of Coda, including communication, cache validation, update propagation, and cache miss handling.  ... 
doi:10.1145/224056.224068 dblp:conf/sosp/MummertES95 fatcat:462zltwehnhbrmkazgqdj6qbsy

Exploiting weak connectivity for mobile file access

L. B. Mummert, M. R. Ebling, M. Satyanarayanan
1995 ACM SIGOPS Operating Systems Review  
Many aspects of the system, including communication, cache validation, update propagation and cache miss handling have been modified.  ...  In this paper, we describe how the Coda File System has evolved to exploit such networks.  ...  The quest for adaptivity has resulted in major changes to many aspects of Coda, including communication, cache validation, update propagation, and cache miss handling.  ... 
doi:10.1145/224057.224068 fatcat:3kzlfyso2ba37fgw73c33keuuu

Adaptive caching with heterogeneous devices in mobile peer to peer network

Fan Ye, Qing Li, EnHong Chen
2008 Proceedings of the 2008 ACM symposium on Applied computing - SAC '08  
For such a mobile P2P network, an effective cache framework that can handle heterogeneous devices is required.  ...  In this paper, we propose a flexible cache scheme which is adaptive to the actual device condition and that of its neighbors.  ...  mobile system.  ... 
doi:10.1145/1363686.1364146 dblp:conf/sac/YeLC08 fatcat:2tj4ffkumvb3lmlqaewrpvpm2e

Mobility-aware caching for content-centric wireless networks: modeling and methodology

Rui Wang, Xi Peng, Jun Zhang, Khaled B. Letaief
2016 IEEE Communications Magazine  
Key properties of user mobility patterns that are useful for content caching will be firstly identified, and then different design methodologies for mobility-aware caching will be proposed.  ...  In this paper, we present a general framework on mobility-aware caching in CCWNs.  ...  It is thus important to investigate how to adaptively cache according to the dynamic user caching capacities, while also taking user mobility into consideration. • Big data analytics for mobility information  ... 
doi:10.1109/mcom.2016.7537180 fatcat:hk7bgahjqvhabhwzxqrphz4e3u

Enabling Mobile Peer-to-Peer Networking [chapter]

Jens O. Oberender, Frank-Uwe Andersen, Hermann de Meer, Ivan Dedinski, Tobias Hoßfeld, Cornelia Kappler, Andreas Mäder, Kurt Tutschku
2005 Lecture Notes in Computer Science  
In this paper we present a P2P file-sharing architecture optimized for mobile networks.  ...  We discuss the applicability of current P2P techniques for resource access and mediation in the context of 2.5G/3G mobile networks.  ...  This is not valid in a mobile telecommunication system.  ... 
doi:10.1007/978-3-540-31963-4_16 fatcat:xsh6p265fjh4fj724v3nnttkxq

Variable granularity cache coherence

L. Mummert, M. Satyanarayanan
1994 ACM SIGOPS Operating Systems Review  
Large granularity callbacks trade off precision of invalidation for speed of validation after connectivity changes.  ...  Distributed file systems using weak connections must function in spite of limited bandwidth and frequent connectivity changes.  ...  File systems such as NFS [7] and Sprite [5] validate cached data at file open time.  ... 
doi:10.1145/164853.164867 fatcat:ar5xckoj7rdi7db4aedwpzzac4

Optimization of Smart Mobile Device Work Time Using an Optimal Decision Tree Classifier and Data Caching Technique in on Premise Network

Sridhar S. K., J. Amutharaj
2021 International Journal of Computer Networks And Applications  
Based on local applications and system JAY- Runtime system profile No data caching.  ...  The CART, and Random forest classifier (RFC) with cross- global cache data replacement policy relies only on File size validations.  ... 
doi:10.22247/ijcna/2021/210720 fatcat:2xmyfc7qlzhsjcxuygb437r7my

An Implementation of Rough Set in Optimizing Mobile Web Caching Performance (Invited Paper)

Sarina Sulaiman, Siti Mariyam Shamsuddin, Ajith Abraham
2008 Tenth International Conference on Computer Modeling and Simulation (uksim 2008)  
Nonetheless, users frequently experience poor performance to access web sites or download files primarily if mobile devices have been used due to their limited storage, processing, display, power and communication  ...  Hence, the goal of this study is to propose Rough Set (RS) as a knowledge representation for uncertainty in data of client behavior and mobile event specification with resource dependencies to reduce latency  ...  Authors would like to thank BioCache and SCRG Research Group, FSKSM for their continuous support and devotion in making this study a success. References  ... 
doi:10.1109/uksim.2008.17 dblp:conf/uksim/SulaimanSA08 fatcat:m7nu3ceg7na2rkgjzd7wlb42ha

Design and Performance Studies of an Adaptive Scheme for Serving Dynamic Web Content in a Mobile Computing Environment

Zhigang Hua, Xing Xie, Hao Liu, Hanqing Lu, Wei-Ying Ma
2006 IEEE Transactions on Mobile Computing  
By integrating a novel Web content adaptation algorithm and an enhanced caching strategy, we propose an adaptive scheme called MobiDNA for serving dynamic content in a mobile computing environment.  ...  To validate the feasibility and effectiveness of the proposed MobiDNA system, we construct an experimental testbed to investigate its performance.  ...  ACKNOWLEDGMENTS The authors give thanks to Ming-Yu Wang, Simon Goumaz, and Yusuo Hu for their generous help and insightful suggestions.  ... 
doi:10.1109/tmc.2006.182 fatcat:gfvp2lhaojbfrl6tozlqggrqci

The case for cyber foraging

Rajesh Balan, Jason Flinn, M. Satyanarayanan, Shafeeq Sinnamohideen, Hen-I Yang
2002 Proceedings of the 10th workshop on ACM SIGOPS European workshop: beyond the PC - EW10  
Cyber foraging uses opportunistically discovered servers in the environment to improve the performance of interactive applications and distributed file systems on mobile clients.  ...  We show how the performance of distributed file systems can be improved by staging data at these servers even though the servers are not trusted.  ...  We would also like to thank Hewlett-Packard for donating notebooks to be used as servers and Compaq for donating handhelds to be used as clients.  ... 
doi:10.1145/1133373.1133390 dblp:conf/sigopsE/BalanFSSY02 fatcat:mfdeyr2npnckxlqi66j2lkbmuy
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