Title :
Fixed wireless systems with 156-Mbit/s transmission capacity for entrance circuits
Author :
Arai, Hiroaki ; Yamada, Atsushi ; Nakamura, Hajime
Author_Institution :
IP Radio Network Dev. Dept., NTT DoCoMo, Inc., Kanagawa, Japan
Abstract :
This paper provides an overview of system configurations and characteristics of novel fixed wireless systems with the transmission capacity of 156 Mbit/s developed for the purpose of constructing entrance circuits for IMT-2000 networks. The systems employ 64QAM to improve the spectrum efficiency, and a decision feedback equalizer to remove intersymbol interference caused by waveform distortion. The systems are advantageous in the economical construction of entrance circuits to address the increasing traffic demands for IMT-2000 data communications in the near future.
Keywords :
3G mobile communication; data communication; decision feedback equalisers; intersymbol interference; quadrature amplitude modulation; 156 Mbit/s; IMT-2000 data communications; IMT-2000 networks; decision feedback equalizer; entrance circuits; fixed wireless systems; intersymbol interference; spectrum efficiency; transmission capacity; waveform distortion; Communication cables; Costs; Downlink; History; Integrated circuit interconnections; Multiaccess communication; Optical fiber cables; Radio network; Telecommunication traffic; Transmitting antennas;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1607028
