Various technologies (such as leaky cable, GSM, satellite, and 802.11 WLAN) have been employed for railway wireless communications.
Generalized Frequency Division Multiplexing (GFDM) is a cyclic filtered multicarrier modulation that may be employed for many new wireless applications.
In addition, the MIMO-OFDM technique is currently the top air interface technology prevalently employed for very high-speed wireless networks.
In recent years, mobile agents have been employed for collaborative processing in wireless sensor networks (WSNs), where agents migrate from node to node, progressively aggregate data and return to the sink with the results.
In this work, the authors propose a set of algorithms to reduce noise and interference disrupting the so-called mud pulse signals, i.e., the wireless signals employed for communication between the sensors located close to the drilling machinery and the so-called ground-collection box, which is in charge of processing all received data.
MATLAB-based PROWLER, which is a protocol and application level simulator for wireless sensor networks, is employed for the simulation study.
One of the architectures usually employed for monitoring systems is based on wireless short range networks: BANs (Body Area Networks) or PANs (Personal Area Networks).
Autonomous software agents, referred to as "on-board agents", are embedded into the wireless sensor nodes employed for structural health monitoring performing simple resource-efficient routines to continuously analyze, aggregate, and communicate the sensor data to a central server.
Therefore, efficient power management of wireless interfaces should be employed for mobile devices.
