http://hscc.cs.nthu.edu.tw/~sheujp/public/journal/97.pdf

Efficient path planning and data gathering protocols for the wireless sensor network

Purpose – Energy constraint is always a serious issue in wireless sensor networks, as the energy possessed by the sensors is limited and non‐renewable. Data aggregation at intermediate base stations increases the lifespan of the sensors, whereby the sensors' data are aggregated before being communicated to the central server. This paper proposes a query‐based aggregation within Monte Carlo simulator to explore the best and worst possible query orders to aggregate the sensors' data at the base stations. The proposed query‐based aggregation model can help the network administrator to envisage the best query orders in improving the performance of the base stations under uncertain query ordering. Furthermore, it aims to examine the feasibility of the proposed model to engage simultaneous transmissions at the base station and also to derive a best‐fit mathematical model to study the behavior of data aggregation with uncertain querying order.Design/methodology/approach – The paper considers small and medium‐siz...

Empirical analysis of query‐based data aggregation within WSN through Monte Carlo simulation

Hybrid data gathering scheme in wireless sensor networks

Wireless sensor networks have been identified as one of the most important technologies in the modern scenario. This paper traces the history of research in data collection in sensor networks, and presents a statistical report, based on the implementation of their algorithms and identifies the corresponding issues and challenges. Efficient data collection in sensor network is a challenging task. This paper addresses the problem of collection of sensed data to the sink(1) of a sensor network, and suggests ways and means to minimize the time and power consumption to complete the process as an essential need. On the basis of these issues, the best rate algorithms with new techniques are proposed. Irrespective of the size and volume of business , uploading or downloading large volume of data with least cost is essential. As sensors are battery powered devices, they consume a lot of energy during transmission than during processing. Hence, many researchers have attempted to formulate ways and means to minimize the schedule length and degree, power consumption, time delay, topologies and so on. Before venturing into the survey and suggestion of new techniques, conclusions of recent research papers have to be compared. This comparative analysis produces implemented values of the base paper and related papers. The comparative ratios of data collection rate are useful to identify the new trends. This will help us to formulate revised effective algorithms to implement and enhance ratio. The proposed technique will eliminate the negatives, and finally, lower bounds or eliminating interference. The higher bounds in data collection can also be authentically proved.

Energy Efficient Data Collection In Hierarchical Tree With Cache- Node Technique In Wireless Sensor Network

Purpose – This paper aims to balance the total energy consumption and the transmission delay for data gathering application in wireless sensor networks.Design/methodology/approach – This paper adopts a hierarchical grid structure to reduce the total energy consumption, and utilizes a tree architecture to decrease the transmission delay.Findings – In the results, the proposed method performs better, in terms of the number of rounds and the energy × delay cost, than other data gathering protocols with different network sizes and node densities. Moreover, the proposed method also provides good coverage preservation in different environments.Research limitations/implications – In this paper, sensor nodes are assumed to be uniformly distributed, homogenous, energy‐constrained. Each sensor node also has ability to adjust its transmission power. For practice, the proposed method needs location information of sensor nodes and the radio interference between sensor nodes during data transmissions should be consider...

Tsung‐Hsiang Chang

Papers

Hierarchical data gathering schemes in wireless sensor networks