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What is a major concern for query optimization in Wireless Sensor Networks (WSNs) and how is it addressed?
What is a major concern for query optimization in Wireless Sensor Networks (WSNs) and how is it addressed?
Computational intensity; addressed by performing query optimization on the server-side PC as much as possible.
How does the virtual table 'sensors' in WSN query processing facilitate structuring computation to minimize power consumption?
How does the virtual table 'sensors' in WSN query processing facilitate structuring computation to minimize power consumption?
By specifying well-defined intervals (epochs) for appending tuples to the table, which provides a mechanism for structuring computation to minimize power consumption.
What is the significance of the 'epoch' concept in WSN query processing, and how does it relate to power consumption?
What is the significance of the 'epoch' concept in WSN query processing, and how does it relate to power consumption?
Epoch refers to the time between sample intervals; it provides a convenient mechanism for structuring computation to minimize power consumption.
How does the query 'Select nodeid, light, temp, From sensors, Sample Period 1s For 10s' specify the data retrieval and frequency for sensor nodes?
How does the query 'Select nodeid, light, temp, From sensors, Sample Period 1s For 10s' specify the data retrieval and frequency for sensor nodes?
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What is the primary advantage of structuring computation in WSN query processing using the 'sensors' virtual table?
What is the primary advantage of structuring computation in WSN query processing using the 'sensors' virtual table?
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How do the results of a WSN query stream to the network root, and what are the possible output options?
How do the results of a WSN query stream to the network root, and what are the possible output options?
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What is the primary cause of received signal power fluctuations in wireless sensor networks?
What is the primary cause of received signal power fluctuations in wireless sensor networks?
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In connectivity-based methods, what is the binary representation of a sensor node's connection to another sensor node within the radio transmission radius?
In connectivity-based methods, what is the binary representation of a sensor node's connection to another sensor node within the radio transmission radius?
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What is the unit of representation of distance from one sensor to another in connectivity-based methods?
What is the unit of representation of distance from one sensor to another in connectivity-based methods?
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What is the first step in RSS profiling measurement for localization?
What is the first step in RSS profiling measurement for localization?
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What is the purpose of the RSS map in RSS profiling measurement?
What is the purpose of the RSS map in RSS profiling measurement?
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What type of random variable, Xσ, is used to account for the random effect caused by shadowing?
What type of random variable, Xσ, is used to account for the random effect caused by shadowing?
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What is the fundamental principle behind propagation time measurement in wireless sensor networks?
What is the fundamental principle behind propagation time measurement in wireless sensor networks?
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What is the main assumption made in time difference of arrival measurement technique?
What is the main assumption made in time difference of arrival measurement technique?
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What is the parameter represented by 'np' in the log-normal model used for received signal strength based measurement?
What is the parameter represented by 'np' in the log-normal model used for received signal strength based measurement?
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What is the primary application of RSS profiling in wireless sensor networks?
What is the primary application of RSS profiling in wireless sensor networks?
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What is the effect of shadowing on signal strength measurement in wireless sensor networks?
What is the effect of shadowing on signal strength measurement in wireless sensor networks?
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What is the principle behind connectivity-based methods for localization in wireless sensor networks?
What is the principle behind connectivity-based methods for localization in wireless sensor networks?
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