Abstract
It is important to increase the Wireless Sensor Network (WSN) lifetime, due to its limited energy resource, while meeting the constraints of applications. Recent Advances for In-Network Processing (INP) motivate many WSN applications which are based on multi rate and distributed signal processing, and therefore require the support of rate-based routing as well as MAC and link layer designs to maximize the WSN lifetime. In this paper, we propose a new scheme called "Rate Distribution (RateD)", in which the application rate constraints are distributed in the WSN based on an optimized routing scheme. An optimal RateD is achieved by forming optimal data flows under rate constraints, which is an NP-complete problem. To reduce the complexity, a near optimization solution is formed and analyzed, and a practical rate-based routing selection based on rate assignment is also proposed to achieve effective rate distributions. The simulation shows that this scheme significantly extends the WSN lifetime for INP applications.
Original language | English (US) |
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Pages (from-to) | 370-375 |
Number of pages | 6 |
Journal | Proceedings of the IASTED International Conference on Parallel and Distributed Computing and Systems |
State | Published - 2006 |
Event | 18th IASTED International Conference on Parallel and Distributed Computing and Systems, PDCS 2006 - Dallas, TX, United States Duration: Nov 13 2006 → Nov 15 2006 |
Keywords
- In-network processing
- Network lifetime
- Rate distribution
- Wireless sensor network
ASJC Scopus subject areas
- Software
- Hardware and Architecture
- Computer Networks and Communications