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The recent interest in Wireless Sensor Networks has led to a number of clustering algorithms that use the limited energy available at sensors more efficiently. In this article, we present a heritable clustering algorithm based on HEED for low energy wireless sensor network. It brings in appointment mechanism to reduce the cluster head reelect overhead efficiently. In the cluster, TDMA communication...
Wireless Body Sensor Networks (WBSNs) have recently received a lot of research interests due to their wide applications in healthcare, security, sports and entertainment. Accurate WBSNs localization is a fundamental problem to be overcome to enable the development of effective location-aware applications. This paper introduces and investigates the performance of WBSN localization algorithms using...
We study the physical layer design of a distributed time-division multiple access (TDMA) protocol for wireless body area networks (WBAN). The distributed TDMA scheme is derived from a bio-inspired algorithm known as Pulse-Coupled Oscillator (PCO), in which each node in the network updates its state based on its knowledge of the neighborhood. ON-OFF ultra wide band (UWB) modulation is used by the sensors...
In multi-cluster sensor network, the inter-cluster interference is a factor to bring packet loss and energy cost. In this paper, a slot pre-allocation algorism to deal with the inter-cluster interference in TDMA based sensor network is proposed. The algorism is totally based on TDMA MAC, without using frequency enlarged methods such as CDMA and FDMA, can be easily implemented and not demands additional...
One of the most important problems in wireless sensor networks is Energy-efficiency Routing Protocol Design. In This Work We propose a hierarchical Clustering Method For energy conservation in Wireless Sensor Networks. first, we divide the sensor nodes to Small Size clusters and determine a cluster head for each cluster in the network. The residual energy and distance to BS are parameters for CH election...
This paper discusses an energy constrained distributed estimation in wireless sensor network (WSN) based on frequency and time division multiple access (FTDMA). In a measurement with WSN, sensors transmit observed quantized data to a fusion center (FC) via radio communication channels, to obtain a final estimate. Such systems require a multiple access technique such as time division multiple access,...
The use of wireless technology for intra-vehicle communication is becoming possible in replacing in-scalable, high weight and high manufacture cost automotive wired networks. Ultra-Wide Band (UWB) is emerging as an ideal alternative for implementing an Intra-Vehicle Wireless Sensor Network (I-VWSN) due to its very high data rate and low power consumption. However, the current IEEE MAC Layer Protocol...
Underwater wireless sensor network is often constrained by limited power, limited communication range and high bit error rate (BER). We focus on designing a TDMA service for a cube-based underwater wireless sensor network. Such network is readily found in many applications in the area of monitoring, hazard detection, and so on. In this paper, we propose an underwater self-stabilizing TDMA algorithm...
This paper presents a distributed algorithm for efficient Time Division Multiple Access (TDMA) slot allocation in Wireless Sensor Networks. Unlike most of the existent proposals, which try to guarantee interference-free allocation based on the n-hop criterion (which can only work with regular topologies), the presented algorithm bases its decisions on the received signal strength, allowing it to operate...
Localization of objects within space is a common problem in WSN research. Besides the location estimation itself, wireless communication is a central aspect within such systems. We present the novel HashSlot method for assured and collision-free transmission of radio packets from multiple sources to a common destination within a constant and predictable time. Due to self-organization, our approach...
Statistic high efficient-distributed energy-aware node activation protocol (SHE-DEANA) mentioned in this paper is improved from DEANA protocol, which based on the time division multiple access (TDMA) principle in reserving energy and raising efficiency. In the proposed protocol a sensor utilizes its assigned slot only when it is sending or receiving information, otherwise its receiver and transmitter...
The design of medium access control (MAC) in wireless sensor networks (WSNs) poses several key factors such as energy conservation, bandwidth utilization, throughput, etc. This paper proposes a new MAC protocol referred to as DEE-MAC which reduces energy consumption by making the idle nodes sleep to reduce idle listening using synchronization at cluster heads. Each cluster is dynamically formed as...
This work studies distributed configuration management of large wireless sensor networks, where management objectives are achieved by local cooperation of individual nodes. Specifically, we study when distributed configuration management is nearly optimal, and how to obtain a nearly-optimal configuration through decentralized adaptation. We first derive a spatial network model that is determined by...
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