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Performance Comparison of Space-Time Block Coding in High-speed Railway Channel
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 Title & Authors
Performance Comparison of Space-Time Block Coding in High-speed Railway Channel
Park, Seong-Guen; Lee, Jong-Woo; Jeon, Taehyun;
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 Abstract
Due to the rapid increase in demand for transportation of human and freight in modern railway systems, the CBTC system has been proposed, which is the solution for improvement of the line capacity that has been limited by the conventional track circuit based train control system. In the CBTC system, higher reliability of the communication system should be guaranteed for the safety of passengers and trains. However, due to the inherent characteristics of the wireless channel environment, performance degradations are inevitable. The diversity techniques can increase the reliability of data transmission using multiple antennas. In this paper, we investigate the performance of the STBC in the railway channel environment. Rician fading model is used for the viaduct scenarios which take important roles in the railway system. Also, considered is the Doppler effect which is an important factor in the mobile communication system. Simulations are performed to analyze the performance of the STBC in various channel environments. Results show that the performance degradation due to the phase error in viaduct scenarios is independent of the diversity order but is affected by the constellation of the modulation.
 Keywords
High-speed Railway;CBTC;MIMO;STBC;Rician fading;Doppler Shift;
 Language
Korean
 Cited by
1.
고속 이동체를 위한 상향링크 주파수 옵셋 보상 방법,최성우;김일규;안재민;

한국통신학회논문지, 2015. vol.40. 9, pp.1699-1709 crossref(new window)
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