Time-optimum packet scheduling for many-to-one routing in wireless sensor networks
International Journal of Parallel, Emergent and Distributed Systems
By: W.-Z. Song, F. Yuan, R. LaHusen, and B. Shirazi
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
This paper studies the wireless sensor networks (WSN) application scenario with periodical traffic from all sensors to a sink. We present a time-optimum and energy-efficient packet scheduling algorithm and its distributed implementation. We first give a general many-to-one packet scheduling algorithm for wireless networks, and then prove that it is time-optimum and costs [image omitted], N(u0)-1) time slots, assuming each node reports one unit of data in each round. Here [image omitted] is the total number of sensors, while [image omitted] denotes the number of sensors in a sink's largest branch subtree. With a few adjustments, we then show that our algorithm also achieves time-optimum scheduling in heterogeneous scenarios, where each sensor reports a heterogeneous amount of data in each round. Then we give a distributed implementation to let each node calculate its duty-cycle locally and maximize efficiency globally. In this packet-scheduling algorithm, each node goes to sleep whenever it is not transceiving, so that the energy waste of idle listening is also mitigated. Finally, simulations are conducted to evaluate network performance using the Qualnet simulator. Among other contributions, our study also identifies the maximum reporting frequency that a deployed sensor network can handle.
Suggested Citation
Song, W., Yuan, F., LaHusen, R., Shirazi, B., 2007, Time-optimum packet scheduling for many-to-one routing in wireless sensor networks: International Journal of Parallel, Emergent and Distributed Systems, v. 22, no. 5, p. 355-370, https://doi.org/10.1080/17445760601111459.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Time-optimum packet scheduling for many-to-one routing in wireless sensor networks |
| Series title | International Journal of Parallel, Emergent and Distributed Systems |
| DOI | 10.1080/17445760601111459 |
| Volume | 22 |
| Issue | 5 |
| Year Published | 2007 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | International Journal of Parallel, Emergent and Distributed Systems |
| First page | 355 |
| Last page | 370 |