Journal
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
Volume 11, Issue 3, Pages 1220-1227Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TWC.2012.012412.111405
Keywords
Performance modeling; data loss analysis; sufficient node density; delay tolerant sensor networks; free-roaming animal monitoring system
Funding
- Division Of Computer and Network Systems
- Direct For Computer & Info Scie & Enginr [0846044] Funding Source: National Science Foundation
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This paper is concerned with the design and analysis of delay-tolerant networks (DTNs) deployed for free-roaming animal monitoring, wherein information is either transmitted or carried to static access-points by the animals whose movement is assumed to be random. Specifically, in such mobility-aided applications where routing is performed in a store-carry-and-drop manner, limited buffer capacity of a carrier node plays a critical role, and data loss due to buffer overflow heavily depends on access-point density. Driven by this fact, our focus in this paper is on providing sufficient conditions on access-point density that limit the likelihood of buffer overflow. We first derive sufficient access-point density conditions that ensure that the data loss rates are statistically guaranteed to be below a given threshold. Then, we evaluate and validate the derived theoretical results through comparison with both synthetic and real-world data.
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