Collector Receiver Design for Data Collection and Localization in Sensor-driven Networks

— We consider a sensor network in which the sensors communicate at will when they have something to report, without prior coordination with other sensors or with data collection nodes. The burden of demodulating the sensor data, and localizing the sensor which is communicating, falls on a network of collector nodes which are perpetually monitoring transmissions from the sensor network. This model allows the random deployment of very large numbers of sensor nodes with minimal capabilities, while shifting the complexity to a network of collector nodes. While the philosophy is similar to prior work on “imaging” sensor nets, the key difference is that the communication model is now sensor-driven, rather than collector-driven. The two major technical challenges addressed in this paper are as follows: (a) Are there simple physical layer implementations of the collector receiver for jointly solving the tasks of detection of a sensor transmission, estimation of the direction from which i...

• Type: Conference
• Year: 2007
• Where: CISS
• Authors: Bharath Ananthasubramaniam, Upamanyu Madhow
• Keywords: CISS 2007, Collector Node, Sensor Network, Sensors