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Performance Enhancement of Underground MIMO Channels using STBC and Channel Estimation Techniques


Anju S Pillai , Mount Zion College of Engineering; Hari S, Mount Zion College of Engineering; Naveena Mariam Jose, Mount Zion College of Engineering


Estimation, multiple-input–multiple-output (MIMO), space-time block coding (STBC)


The present work features the enhancement of channel data rate in enclosed environments is by incorporating multiple- input -multiple output (MIMO) system. Wireless Underground Communication Networks (WUCNs) constitute one of the promising application areas of the recently developed wireless networking techniques. The efficiency of space-time block coding (STBC) technique in conventional MIMO systems improves the communication quality. This system investigates the data reliability at the receiver in term of bit error rate (BER). For this, the underground MIMO channel is estimated by sending a pilot sequence and using minimum mean square error (MMSE) principle on the received pilots. The resulting MIMO channel estimate is used to evaluate the data part in the STBC block and perform a decision using the maximum likelihood (ML) detector. Finally, both the channel and transmitted data estimates are given analytically, and the degradation of the BER performance of the system due to MMSE estimation errors is studied.

Other Details

Paper ID: IJSRDV5I11014
Published in: Volume : 5, Issue : 1
Publication Date: 01/04/2017
Page(s): 1707-1709

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