Power Efficient Distributed Estimation in a Bandlimited Wireless Sensor Network

The problem of distributed estimation of a nonrandom parameter in a Wireless Sensor Network (WSN) with, in general, correlated observations over a band-limited channel is addressed. Each distributed node performs Amplify-and-Forward (AF) processing on its noise corrupted local observations and sends the locally processed data to the fusion center over a wireless channel sharing a common bandwidth. The bandwidth constraint is taken into account by assigning a Direct Sequence Code Division Multiple Access (DS-CDMA) signaling waveform for each node.