Highly dynamic Destination-Sequenced Distance-Vector routing (DSDV) for mobile computers
SIGCOMM '94 Proceedings of the conference on Communications architectures, protocols and applications
Directed diffusion: a scalable and robust communication paradigm for sensor networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
System architecture directions for networked sensors
ASPLOS IX Proceedings of the ninth international conference on Architectural support for programming languages and operating systems
Geography-informed energy conservation for Ad Hoc routing
Proceedings of the 7th annual international conference on Mobile computing and networking
Proceedings of the 7th annual international conference on Mobile computing and networking
Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Wireless sensor networks for habitat monitoring
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
Introduction to Algorithms
Energy-Efficient Communication Protocol for Wireless Microsensor Networks
HICSS '00 Proceedings of the 33rd Hawaii International Conference on System Sciences-Volume 8 - Volume 8
RAP: A Real-Time Communication Architecture for Large-Scale Wireless Sensor Networks
RTAS '02 Proceedings of the Eighth IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS'02)
An Implicit Prioritized Access Protocol for Wireless Sensor Networks
RTSS '02 Proceedings of the 23rd IEEE Real-Time Systems Symposium
Ad-hoc On-Demand Distance Vector Routing
WMCSA '99 Proceedings of the Second IEEE Workshop on Mobile Computer Systems and Applications
SPEED: A Stateless Protocol for Real-Time Communication in Sensor Networks
ICDCS '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
The design of an acquisitional query processor for sensor networks
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Fjording the Stream: An Architecture for Queries Over Streaming Sensor Data
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
TiNA: a scheme for temporal coherency-aware in-network aggregation
Proceedings of the 3rd ACM international workshop on Data engineering for wireless and mobile access
RTSS '03 Proceedings of the 24th IEEE International Real-Time Systems Symposium
Optimal QoS Sampling Frequency Assignment for Real-Time Wireless Sensor Networks
RTSS '03 Proceedings of the 24th IEEE International Real-Time Systems Symposium
AIDA: Adaptive application-independent data aggregation in wireless sensor networks
ACM Transactions on Embedded Computing Systems (TECS)
Energy-Aware, Load Balanced Routing Schemes for Sensor Networks
ICPADS '04 Proceedings of the Parallel and Distributed Systems, Tenth International Conference
TAG: a Tiny AGgregation service for Ad-Hoc sensor networks
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
Tributaries and deltas: efficient and robust aggregation in sensor network streams
Proceedings of the 2005 ACM SIGMOD international conference on Management of data
Efficient Power Management Based on Application Timing Semantics for Wireless Sensor Networks
ICDCS '05 Proceedings of the 25th IEEE International Conference on Distributed Computing Systems
Theory, Volume 1, Queueing Systems
Theory, Volume 1, Queueing Systems
PERT: a new power-efficient real-time packet delivery scheme for sensor networks
International Journal of Sensor Networks
PERT: a new power-efficient real-time packet delivery scheme for sensor networks
International Journal of Sensor Networks
A survey of communication/networking in Smart Grids
Future Generation Computer Systems
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We present PERT, a power-efficient scheme to deliver real-time data packets in sensor networks. Time-sensitive sensor data is common in applications such as hazard monitoring systems, traffic control systems and battlefield command systems. Such data are associated with end-to-end deadlines, within which they must reach the Base Station (BS). We make two contributions in this work. Firstly, we propose a novel load-balanced routing scheme that distributes data packets evenly among the nodes relaying data towards the BS, avoiding bottlenecks and increasing the likelihood that packets will meet their deadlines. Secondly, we propose a method of grouping smaller packets into larger ones by delaying data transmissions at the relaying nodes whenever slack times are positive. Our packet grouping scheme significantly reduces packet transmissions, reduces congestion and saves power in the sensor network. We verify the effectiveness of our approach through extensive simulations of wireless network behaviour using the ns-2 simulation package.