Title :
Broadband multi-media communication system with asymmetric wireless access link, SDL-Net
Author :
Serizawa, Mutsumu ; Nakajima, Nobuyasu ; Toshimitsu, Kiyoshi ; Nonin, Katsuya
Author_Institution :
Res. & Dev. Center, Toshiba Corp., Kawasaki, Japan
Abstract :
SDL-Net (super high speed downlink network) is proposed as a wireless access link to a broadband multi-media network, and its physical-layer and datalink-layer protocols are described. In SDI-Net, the transmission data rate in the downlink is 100 to 1000 times faster than the transmission data rate in the uplink. Since the backward channel is much narrower than the forward channel, a sophisticated ARQ technique is indispensable for errorless data transmission through such an asymmetric air interface. Considering the ARQ scheme and the transmission quality in the downlink, the downlink throughput and the uplink traffic are investigated for large file transfer services such as an electronic publishing. The round trip delay which is one of the important performance measures, is analyzed. The backbone networks for the SDL-Net are also discussed
Keywords :
automatic repeat request; broadband networks; channel capacity; data communication; delays; electronic publishing; land mobile radio; multimedia communication; protocols; publishing; subscriber loops; telecommunication traffic; ARQ technique; SDL-Net; asymmetric air interface; asymmetric wireless access link; backbone networks; backward channel; broadband multi-media communication system; datalink-layer protocols; electronic publishing; errorless data transmission; file transfer services; forward channel; performance; physical-layer protocol; round trip delay; super high speed downlink network; transmission data rate; uplink; Access protocols; Automatic repeat request; Broadband communication; Data communication; Downlink; Multimedia communication; Multimedia systems; Telecommunication traffic; Throughput; Wireless application protocol;
Conference_Titel :
Communications, 1996. ICC '96, Conference Record, Converging Technologies for Tomorrow's Applications. 1996 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-3250-4
DOI :
10.1109/ICC.1996.541278
