21 | 04 | 2019

Infrastructure : Campus Wi-Fi

Wi-Fi in campus is not new story. Most of schools have basic Wi-Fi coverage for different purposes but usually are thinck AP with less management utility. There is no standard or regulation which schools must follow. Indeed, the Wi-Fi network of each school should 100% unique because of different environments and of different applications the Wi-Fi network for. ITSHK provides total Wi-Fi solution by combing individual solutions and for that campus only.


Governments are pushing forward to e-learning solutions to replace books and papers as well as providing more interesting and interactive classes for child. Apart from e-learning required devices, servers and applications, IT infrastructure is another key of success of e-learning, especially Wi-Fi system. For example, a thirty student e-learning class involve more then thirty mobile devices at the same classroom and must connect to e-learning server and etc with dedicate bandwidth and low network latency. Hence we should well consider below factors:

Client related
1) client model and standard
2) downlink and uplink throughput required
3) enough signal-noise-ratio to run at least minimum speed required
4) reconnect and roaming ability
5) roaming ability if timeout is not acceptable

AP related
1) AP model, standard and compatibility
2) channel management (channel bandwidth)
3) radio power output to maintain SNR and also comfortable environment for child
4) numerous users handshaking and handling

1) cabling ability and bandwidth
2) network latency
3) collision concern
4) bandwidth/routing/latency/security if by cloud services


As the requirement of accessing Wi-Fi increase, school is looking for a long term, flexible and cost effective solution. Some products provide a cloud control Wi-Fi system which hardware controller is not necessary. IT administrator only require to config one AccessPoint then the configuration will automatically distribute to other AP. Apart from deployment tool, the system also provide comprehensive set of management tools such as real time monitoring, customized reporting and location-based services.


Distributed Antenna System is a passive cabling system. By redirecting the RF signal to exactly locations which Wi-Fi are requested and prevent signal lost by concret wall, glasses, marble and decorations. Campus Wi-Fi with DAS can save a lot of money by eliminate unnecessary number of Access Point and hence minimize controller scale. As a passive system, DAS is stable and fit outdoor environment of campus.