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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Junning Liu Zhen Liu Towsley, D. Xia, C.H. |
| Copyright Year | 2007 |
| Description | Author affiliation: Univ. of Massachusetts, Amherst (Junning Liu) |
| Abstract | We study a joint scheduling and coding problem for collecting multi-snapshots spatial data in a resource constrained sensor network. Motivated by a distributed coding scheme for single snapshot data collection [7], we generalize the scenario to include multi-snapshots and general coding schemes. Associating a utility function with the recovered data, we aim to maximize the expected utility gain through joint coding and scheduling. We first assume non-mixed coding where coding is only allowed for data of the same snapshot. We study the problem of how to schedule (or prioritize) the codewords from multiple snapshots under an archiving model where data from all snapshots are of interests with additive utilities. We formalize the scheduling problem into a multi-armed bandit (MAB) problem. We derive the optimal solution using Git-tins Indices, and identify conditions under which a greedy algorithm is optimal. We then consider random mixed coding where data from different snapshots are randomly coded together. We generalize the growth codes in [7] to arbitrary linear-codes-based random mixed coding and show that there exists an optimal degree of coding. Various practical issues and the buffer size impact on performance are then discussed. |
| Sponsorship | ACM SIGBED IEEE Signal Process. Soc. |
| Starting Page | 244 |
| Ending Page | 253 |
| File Size | 4281797 |
| Page Count | 10 |
| File Format | |
| ISBN | 9781595936387 |
| DOI | 10.1109/IPSN.2007.4379684 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-04-25 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Association for Computing Machinery, Inc. (ACM) |
| Subject Keyword | Disruption tolerant networking Theory Joint Coding and Scheduling Sensor phenomena and characterization Multi-Snapshots Data Collection Sensor systems Condition monitoring Computer science Processor scheduling Network topology Algorithms Sensor Network Utility Maximization Network Coding Network coding Permission Sampling methods Performance Reliability |
| Content Type | Text |
| Resource Type | Article |
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