Title :
Radio link configurations of broadband wireless access system
Author :
Koga, Keiichiro ; Fujimoto, Yoshinori ; Tejima, Shunichiro
Author_Institution :
NEC Corp., Yokohama, Japan
Abstract :
Radio link configurations of broadband wireless access systems are discussed to give a perspective of the different systems. First point-to-point and point-to-multipoint systems are compared to see in what situations the latter has the advantage over the former. Then the configurations of up- and downlinks of the point-to-multipoint systems are classified and compared to one another. Finally the performances of several modulation schemes are compared from the viewpoint of the applicability to the broadband wireless access system, and a brief discussion is also made of the adaptive modulation scheme
Keywords :
adaptive modulation; broadband networks; quadrature amplitude modulation; quadrature phase shift keying; radio access networks; radio links; 16QAM; 64QAM; QPSK; adaptive modulation scheme; broadband wireless access system; downlinks; modulation schemes; point-to-multipoint systems; point-to-point systems; radio link configurations; uplinks; Base stations; Broadband antennas; Business communication; Communication networks; Costs; Explosives; IP networks; National electric code; Radio link; Transmitting antennas;
Conference_Titel :
Personal Wireless Communication, 1999 IEEE International Conference on
Conference_Location :
Jaipur
Print_ISBN :
0-7803-4912-1
DOI :
10.1109/ICPWC.1999.759648
