A Parallel Simulated Annealing Algorithm with Low Communication Overhead
IEEE Transactions on Parallel and Distributed Systems
Power-aware routing in mobile ad hoc networks
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
Online power-aware routing in wireless Ad-hoc networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Analysis of a cone-based distributed topology control algorithm for wireless multi-hop networks
Proceedings of the twentieth annual ACM symposium on Principles of distributed computing
Wireless sensor networks for habitat monitoring
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
An on-demand minimum energy routing protocol for a wireless ad hoc network
ACM SIGMOBILE Mobile Computing and Communications Review
TEEN: ARouting Protocol for Enhanced Efficiency in Wireless Sensor Networks
IPDPS '01 Proceedings of the 15th International Parallel & Distributed Processing Symposium
An Implicit Prioritized Access Protocol for Wireless Sensor Networks
RTSS '02 Proceedings of the 23rd IEEE Real-Time Systems Symposium
An Energy-Aware QoS Routing Protocol for Wireless Sensor Networks
ICDCSW '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
SPEED: A Stateless Protocol for Real-Time Communication in Sensor Networks
ICDCS '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
Understanding packet delivery performance in dense wireless sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Wireless Communications
An RSSI-based Scheme for Sybil Attack Detection in Wireless Sensor Networks
WOWMOM '06 Proceedings of the 2006 International Symposium on on World of Wireless, Mobile and Multimedia Networks
Partially overlapped channels not considered harmful
SIGMETRICS '06/Performance '06 Proceedings of the joint international conference on Measurement and modeling of computer systems
Real-Time Traffic Management in Sensor Networks
RTSS '06 Proceedings of the 27th IEEE International Real-Time Systems Symposium
PermaSense: investigating permafrost with a WSN in the Swiss Alps
Proceedings of the 4th workshop on Embedded networked sensors
LUSTER: wireless sensor network for environmental research
Proceedings of the 5th international conference on Embedded networked sensor systems
Maximally radio-disjoint multipath routing for wireless multimedia sensor networks
Proceedings of the 4th ACM workshop on Wireless multimedia networking and performance modeling
Proceedings of the 6th ACM conference on Embedded network sensor systems
A measurement study of interference modeling and scheduling in low-power wireless networks
Proceedings of the 6th ACM conference on Embedded network sensor systems
Flow-Based Real-Time Communication in Multi-Channel Wireless Sensor Networks
EWSN '09 Proceedings of the 6th European Conference on Wireless Sensor Networks
Multi-Channel Interference Measurement and Modeling in Low-Power Wireless Networks
RTSS '09 Proceedings of the 2009 30th IEEE Real-Time Systems Symposium
Decorrelating wireless sensor network traffic to inhibit traffic analysis attacks
Pervasive and Mobile Computing
Distributed sampling for dense sensor networks: a "Bit-conservation principle"
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
Exploiting overlapping channels for minimum power configuration in real-time sensor networks
EWSN'10 Proceedings of the 7th European conference on Wireless Sensor Networks
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Multi-channel communications can effectively reduce channel competition and interference in a wireless sensor network and thus achieve increased throughput and improved end-to-end delay guarantees with reduced power consumption. However, existing work relies only on a small number of orthogonal channels, resulting in degraded performance when a large number of data flows need to be transmitted on different channels. In this article, we conduct empirical studies to investigate interferences among overlapping channels. Our results show that overlapping channels can also be utilized for improved real-time performance if the node transmission power is carefully configured. In order to minimize the overall transmission power consumption of a network with multiple data flows under end-to-end delay constraints, we formulate a constrained optimization problem to configure the transmission power level of every node and assign overlapping channels to different data flows. Since the optimization problem has an exponential computational complexity, we then present a heuristic algorithm designed based on simulated annealing to find a suboptimal solution. Our extensive empirical results on a 33-mote testbed demonstrate that our algorithm achieves better real-time performance and less power consumption than two baselines, including a scheme using only orthogonal channels.