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Efficient Channel Estimation Method for ZigBee Receiver in Train Environment
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 Title & Authors
Efficient Channel Estimation Method for ZigBee Receiver in Train Environment
Lee, Jingu; Kim, Daehyun; Kim, Jaehoon; Kim, Younglok;
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 Abstract
The monitoring system in railway is under study to forecast any derailment and accident by defect of train. Because the monitoring system is composed of wireless sensor network based on ZigBee-communication between inside and outside of train, the study for wireless channel analysis is required. Especially, if multipath delay profile exist in the channel, the equalizer and channel estimator can be required for preventing receiver performance degradation. Therefore, we analyzed the wireless channel in train environment using measured data and, proposed the channel estimation method through the characterisitic of chip code, under the consideration of the channel characteristics in train. To show the performance of proposed method, we demonstrate the performance by mean square error(MSE), computational complexity and bit error rate(BER).
 Keywords
Channel estimation;IEEE 802.15.4;ZigBee;Railway;Train;
 Language
Korean
 Cited by
 References
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