Title :
A New Transmission Scheme for Railway Based on OFDM-SFN
Author :
Gao, Aiqin ; Yao, Dongping
Author_Institution :
Beijing Jiaotong Univ., Beijing
Abstract :
In this paper, we propose a new transmission scheme for railway wireless communication. By realizing single frequency network based on OFDM, we improved the performance of GSM-R by realizing "soft handover" . And in order to improve our system\´ s performance in frequency selective multipath channel, we adopt generalized Multi-Carrier-CDMA (GMC-CDMA) scheme to optimize our system. Relying on symbol blocking and judicious design of user\´ s code, GMC CDMA could obtain a better interference resilient performance in multipath fading channel while guaranteeing a good symbol recovery.
Keywords :
OFDM modulation; cellular radio; code division multiple access; fading channels; frequency selective surfaces; multipath channels; railway communication; GMC-CDMA scheme; GSM-R; OFDM-SFN; frequency selective multipath channel; generalized multicarrier-CDMA scheme; multipath fading channel; orthogonal frequency division multiplexing; railway wireless communication; single frequency network; soft handover; symbol blocking; transmission scheme; Antennas and propagation; Downlink; Electromagnetic compatibility; Microwave antennas; Microwave propagation; OFDM; Rail transportation; Switches; Transmitting antennas; Wireless communication;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2007 International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-1045-3
Electronic_ISBN :
978-1-4244-1045-3
DOI :
10.1109/MAPE.2007.4393598
