Title :
Theory and Technology for Standard WiMAX Over Fiber in High Speed Train Systems
Author :
Yeh, Chien-Hung ; Chow, Chi-Wai ; Liu, Yen-Liang ; Wen, Sz-Kai ; Chen, Shi-Yang ; Sheu, Chorng-Ren ; Tseng, Min-Chien ; Lin, Jiunn-Liang ; Hsu, Dar-Zu ; Chi, Sien
Author_Institution :
Inf. & Commun. Res. Labs., Hsinchu, Taiwan
Abstract :
In this investigation, we propose and investigate the standard WiMAX access in high speed railway (HSR) using radio over fiber (RoF) link. We also discuss the theory of mobile WiMAX at a target speed of 300 km/hr in simulation. We also analyze the effect of the Doppler frequency shift over HSR. The effective transmission fiber length in the WiMAX-RoF system was limited due to the time-division-duplex (TDD) protocol in the practical WiMAX. Thus, we also demonstrate the transmission limitation and performance of the standard WiMAX access in RoF link. The performances of throughput and packet loss at different fiber lengths are also investigated and discussed. Furthermore, a WiMAX-RoF field trial is also demonstrated based on a simple two RAUs RoF architecture. It was tested and measured in the SongShan tunnel of the Taiwan high speed railway (THSR).
Keywords :
WiMax; mobile computing; optical links; protocols; radio-over-fibre; railway communication; time division multiplexing; tunnels; Doppler frequency shift; SongShan tunnel; Taiwan high speed railway; WiMAX access; WiMAX over fiber; high speed train system; mobile WiMAX; radio over fiber link; time-division-duplex protocol; transmission fiber length; transmission limitation; High speed railway; OFDM; WiMAX; radio over fiber (RoF); time-division-duplex (TDD);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2010.2044018
