Abstract

Recently, a distributed estimation, a type of parameter estimation problem, has been widely studied from the viewpoint of wireless sensor network (WSN) applications (1) (2). In particular, distributed estimation has been well-studied for certain WSN applications, such as environmental monitoring and precision agriculture (3)-(8). In such applications, measurements are acquired by the combination of a large number of deployed sensors which are equipped with a radio communication transceiver and a fusion center (FC), which collects measurement information from sensors to obtain a final estimate. Such measurement systems require some multiple access systems such as time division multiple access (TDMA), frequency division multiple access (FDMA) (9), frequency and time division multiple access (FTDMA) (10). However, most of related works ignore the effect of multiple access techniques on distributed estimation in WSNs.

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