Coverage-Aware Sensor Engagement in Dense Sensor Networks

نویسندگان

  • Jun Lu
  • Lichun Bao
  • Tatsuya Suda
چکیده

The critical issue in sensor networks is the search of balance between the limited battery supply and the expected longevity of network operations. Similar goals exist in providing a certain degree of sensing coverage and maintaining a desirable number of sensors to communicate under the energy constraint. We propose a novel sensor network protocol, called Coverage-Aware Sensor Engagement (CASE) for coverage maintenance. Different from others, CASE schedules active/inactive sensing states of a sensor according to the sensor’s contribution to the network sensing coverage. The contribution is quantitatively measured by a metric called coverage merit. By utilizing sensors with large coverage merit, CASE reduces the number of the active sensors required to maintain the level of coverage. Simulation results show that CASE considerably improves the energy efficiency and reduces the computation and communication costs to maintain the required coverage degree in a dense sensor network.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Classification and Comparison of Methods for Discovering Coverage Loss Areas in Wireless Sensor Networks

In recent years, wireless sensor networks data is taken into consideration as an ideal source, in terms of speed, accuracy and cost, in order to study the Earth's surface. One of the most important challenges in this area, is the signaling network coverage and finding holes. In recent years, wireless sensor networks data is taken into consideration as an ideal source, in terms of speed, accurac...

متن کامل

Coverage Improvement In Wireless Sensor Networks Based On Fuzzy-Logic And Genetic Algorithm

Wireless sensor networks have been widely considered as one of the most important 21th century technologies and are used in so many applications such as environmental monitoring, security and surveillance. Wireless sensor networks are used when it is not possible or convenient to supply signaling or power supply wires to a wireless sensor node. The wireless sensor node must be battery powered.C...

متن کامل

Design and evaluation of two distributed methods for sensors placement in Wireless Sensor Networks

Adequate coverage is one of the main problems for distributed wireless sensor networks and The effectiveness of that highly depends on the sensor deployment scheme. Given a finite number of sensors, optimizing the sensor deployment will provide sufficient sensor coverage and save power of sensors for movement to target location to adequate coverage. In this paper, we apply fuzzy logic system to...

متن کامل

Representing a Model for Improving Connectivity and Power Dissipation in Wireless Networks Using Mobile Sensors

Wireless sensor networks are often located in areas where access to them is difficult or dangerous. Today, in wireless sensor networks, cluster-based routing protocols by dividing sensor nodes into distinct clusters and selecting local head-clusters to combine and send information of each cluster to the base station and balanced energy consumption by network nodes, get the best performance ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • J. Embedded Computing

دوره 3  شماره 

صفحات  -

تاریخ انتشار 2005