High-speed Wireless Network Link for connecting the Yam Pak Building to the Campus Network

Since 1998, the campus network connection to the Yam Pak Building has been supported by a wireless network link. Initially, this was a link running at a speed of 512Kbps.  Last month, i.e. in December 2000, this link was upgraded for better performance.

The upgraded link is supported by the CB-Access broadband wireless access system.  It consists of an Access Point (AP) and a Subscriber Unit (SU), mounted on the rooftop of the Chow Yei Ching Building and the Yam Pak Building respectively.  The AP and SU communicate with each other through a wireless channel with a speed going up to 25Mbps.  Both the AP and SU are connected to the building's network via a 10-BaseT Ethernet connection.

Our benchmark tests have shown that the upgraded link yields a sustained average throughput of 3.5 Megabits/s*, which represents more than six-fold increase from the performance before the upgrade.

Network users in the Yam Pak Building should be able to notice a significant increase in network transmission speed in accessing the facilities and resources on the Campus Network and Internet.
 

T. Y. Shen
Tel: 2241 5229
E-mail: sty@cc.hku.hk



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