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This work proposes a distributed algorithm for the energy optimal routing in wireless sensor network. The routing problem is described as a minimum-cost multi-commodity network flow problem by Linear programming. Based on the convex programming theory we use the dual decomposition theorem to derive the distributed algorithm. The algorithm computes the energy optimal routing in the network without...
The simulation analysis is important approach to developing and evaluating the systems in terms of development time and cost. This paper demonstrates the application of Time Division Cluster Scheduling (TDCS) tool for the configuration of IEEE 802.15.4/ZigBee beacon-enabled cluster-tree WSNs using the simulation analysis, as an illustrative example that confirms the practical applicability of the...
Cluster scheduling and collision avoidance are crucial issues in large-scale cluster-tree Wireless Sensor Networks (WSNs). This paper presents a methodology that provides a Time-Division Cluster Scheduling (TDCS) mechanism based on the cyclic extension of Resource Constrained Project Scheduling with Temporal Constraints (RCPS/TC) problem for a cluster-tree WSN, assuming bounded communication errors...
The availability of real-time CAN-ECU data and the emerging vehicular networks are critical for advanced vehicle monitoring and control. This paper presents our integrated info-security scheme, real-time hardware/software solutions and their application scenarios. The core is the Integrated Info-Security Circuit Board to communicate with ECUs and sensors inside a vehicle through CAN Bus, LIN Bus,...
The emerging vehicular networks in the forms of intra-vehicle (InV), vehicle-to-vehicle (V2V), and vehicle-to-infrastructure (V2I) communications are fast becoming a reality and critical data is being exchanged with-inside and with-outside vehicle via vehicular networks. In this paper, we propose integrated info-security solutions for vehicular networks. The proposed solutions will ensure that data...
In this paper we propose location aided storage management for data centric storage in wireless sensor networks. Sensor networks store data in three places: external, in-network, local. In-network storage allows sensor nodes as storage nodes for sensed data in the sensor network. This form in-network storage in sensor networks is called data centric storage and is achieved by geographic hashing. Geographic...
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