Title :
Flexible downlink/uplink frequency resource allocation for software-based wireless multimedia communications
Author :
Kitazawa, Daisuke ; Yomo, Hiroyuki ; Hara, Shinsuke
Author_Institution :
Dept. of Electron., Inf., & Energy Eng., Osaka Univ., Japan
Abstract :
In the near future, not only conventional voice transmission but data transfer, video transmission and so on will be provided in mobile radio communications. “Software radio” technology, which can change transmission format adaptively, has great advantage in the so-called “multimedia” communications. In this paper, using a typical multimedia service model which is supposed to be provided in third- or fourth-generation mobile communications, the system performance is evaluated for such a software radio environment. Furthermore, a flexible frequency resource allocation algorithm is proposed, and its potential in terms of multimedia handling capability and spectral efficiency is discussed
Keywords :
access protocols; cellular radio; code division multiple access; frequency allocation; multimedia communication; radio links; software architecture; telecommunication computing; time division multiple access; DS-CDMA; TDMA; cellular radio; data transfer; downlink/uplink frequency resource allocation; flexible frequency resource allocation algorithm i; fourth-generation mobile communications; mobile radio communications; multimedia service model; software radio environment; software-based wireless multimedia communications; spectral efficiency; system performance; third-generation mobile communications; transmission format; video transmission; voice transmission; Delay effects; Downlink; Hardware; Multiaccess communication; Power engineering and energy; Radio spectrum management; Software radio; Time division multiple access; Traffic control; Wireless communication;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851543
