Abstract:The tracking Mean Square Error (MSE) of the least squares (LS) Multiple Input Multiple Output (MIMO) channel estimation in rician flat fading channel is derived in closed-form, which is then verified by Monte Carlo simulation. The channel accomodates applications where the elevation angle between the transmitter and the receiver dictates the doppler shift of the Line of Sight (LOS) component, as encountered in communications from satellite or High Altitude Platform (HAP) to a moving mobile. A higher tracking loss is revealed as the mobile travels to a lower elevation angle.

Structural health monitoring (SHM) of civil infrastructure using wireless sensor networks (WSNs) has received significant public attention in recent years. The benefits of WSNs are that they are low-cost, easy to install, and provide effective data management via on-board computation. This paper reports on the designing SHM using WSN on the Pasupati Bridge a cable-stayed bridge in Bandung with a construction 303-m long bridge across the valley , including a cable stayed bridge along 161-m. The design central components of the WSN that will be proposed are the Imote2 smart sensor platforms, a custom-designed sensor boards, and gateway. In total, 42 sensor nodes and one gateway will be proposed to monitor the bridge using autonomous SHM application with vibration triggering the system to initiate monitoring.

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