After investigating Wi-Fi deployment for events I haveconsidered some of the following factors. These are supply and demand, OptimumCoverage, Wi-Fi Dual Band, Shaping Wi-Fi usage and the most obvious, fasterconnections. It is very common for a person to attend an event realising thatthe wireless connection for his/her device is slow, patchy or non-existent.
Based on my findings, it comes down to the congestion issue and how it could beavoided. Users will tend to consume all available bandwidth over the network,so the network will not be able to load balance the demand for resources.People today take an internet connection for granted, as they will alwaysdemand a speedy connection, especially at conferences or events. This is whereevents depend on such resources in order for it to be a success. Almost everyevent today will be acquired with Wi-Fi, although this will never guarantee astrong and reliable connection. Users will usually bring more than one device to an event.Based on research it is said that the average user will take two and a half devicesto an event. So if 25,000 users attend then it will equate to 62,500 devices onthe network.
However, this doesn’t mean that the network is required to manageall these devices, it could be limited to one device per user so that it canmanage traffic in an orderly fashion. For example, for users to access theWi-Fi they will need to enter their temporary user credentials that wereassigned to them for logging on, this will keep track of how many devices theuser is logged in. This would hopefully reduce the volume of user requests wheneveryone is logging in at the same time. An almost perfect Wi-Fi setup can have a huge impact on theevent, but most of the time it is only spoken of and not in actual operations.
People will most likely talk about the Wi-Fi connection for all of its faults.This should never be the case for any event, a forward planning and preparationstructure is crucial for optimum network coverage in the event’s venue. Byclearly having fast, strong, reliable wireless signals.
Although in realenvironments it is sometimes impossible to get rid of all connection blackspots, making roaming not viable in certain areas. It is important to consider usinga Dual Band frequency for Wi-Fi technology. A lot of events will just use theold 2.4GHz where it is likely to get congested very quickly and is open tointerference.
The newer 5GHz is a band that uses multiple channel streams so itless likely to get congested. Using Dual Band 2.4GHz and 5GHz will increaseWi-Fi efficiency, providing the user with a suitable frequency for the areathey are located in. For example, users in close proximity to the Wi-Fi hotspotwill most likely have better roaming with 5GHz, whereas users farther away willonly have 2.4GHz as an option. Using a traffic shaping methodology for the entire event canbe a crucial component.
This is where the Wi-Fi administrator can apply a datacap on all guest users so they cannot go over the restricted data use and generateincrease amounts of heavy traffic. Applying this will not affect all onlineusers, especially with the ones that require most online resources such as the Eventteam, Police and Medics etc.. These important departments can freely use all unlimiteddata usage without guest users causing congestion. Out of all these factors discussed above, the obvious one outof all is a fast connection.
For example, a crowd of 1,000 users can have a 1Gbpsconnection over 35Gbps links for high usage. Whereas 1,000 users with low data usagesuch as emails and social media could have a 500Mbps connection over 35Gbpslinks. All these will be considered for my design and implementation.The wireless connection study will all be demonstrated through OPNET.