Question

VIC-RE’s new office has 7 PCs in the wired LAN with a 100 Mbps switch. It was suggested to the network administrator to replace the switch with a wireless Access Point (AP) that uses the 802.11ac standard and operates at 1 Gbps.

Assuming all PCs were simultaneously using the LAN, would the AP deliver faster or slower speeds to the employees? Explain your reasoning by including estimates of effective bandwidth for each case.

Answer 1

When multiple devices connected to a same Wi-Fi the users experience low interest speed, but theoretically, due to the multiple connections from different devices doesn’t slow down the internet speed. But when more number of devices are connected to the internet, the bandwidth is being shared to the connected devices affecting the speed. So the closer devices should have higher bandwidth than the devices far away.

Internet speed depends on the type of usage too. That means browsing web pages or sending email consumes small portion of bandwidth even if a number of users are performing this activity at the same time. Where streaming live videos and downloading large files consumes higher portion of bandwidth. If many users or most of the users are streaming HD videos or downloading large files on a consistent basis, then you will experience a considerable impact on bandwidth. Similarly, if a user utilizes significant bandwidth by sending large files, other users in the network will find it difficult to submit download requests.

Similarly, when multiple devices are connected to the same internet link impacts the internet bandwidth and result in reduced performance as each device would be getting a smaller bandwidth share. Even a high-speed internet will deliver poor results if it is hampered by the local network inside your premises. So, the activities performed by the internet and the devices or users connected to the same Wi-Fi can have a large impact on the internet traffic and available bandwidth. The presence of a number of Wi-Fi devices in close proximity also degrades performance as these routers generate wireless signal interference which results in frequent re-broadcasting of messages that fail to reach the destination.

There are routers which give administrative privileges to control the number of clients that can be simultaneously connected to the internet.
A lot of the users don't know how many users can their router support. To find it you can Google the model number.

In the home network, all devices usually share a single internet connection. The performance starts to degrade the moment more users or devices are added to the network. This problem can be resolved by installing a second router to distribute the network load. By doing this, any number of devices can be supported. However, this will make the network complex and difficult to manage.