Have you ever designed a WLAN for a stadium? Ever taken a tour a of a top-tier professional stadium that has just had a a new wireless network installed throughout? I’ve done both, and the challenges of stadium WLAN have to be experienced before you can fully appreciate them. Regardless of what WLAN vendor you use on the radio side, you have to get the signals to where they need to be and to manage their fidelity in an environment that has great potential to devolve into an RF cesspool during events. Antennas- and their placement- are the keys to success, Daddy-o.
There are only so many places you can stick access points and antennas in a stadium environment’s fan seating areas. Depending on the venue, you might get great bleed-out/in between the bowl area and the concourses and office areas where different WLANs are likely to be found. Then there is the sheer volume of client devices, the other RF systems on and around the field, and whatever hotspot noisemakers fans and media show up with. Precision placement, alignment, and antenna patterns are the stuff of stadium wireless networks, and it’s all gotta be done in a way that protects the WLAN gear and rowdy fans from each other.
Lately, I’ve been fortunate to spend a little time on multiple occasions with Dennis Burrell of Ventev talking about antennas and his work designing them for challenging environments. Let’s have a look at one of Ventev’s specialty solutions, straight from Soldier Field (home of the NFL’s Chicago Bears):
And now a cutaway of that “handrail enclosure”:
If it’s not obvious, the advantage here is that the antennas are not below the seats or at some far-away overhead mounting location, but rather at waist-height with more clear lines of sight into the adjacent seating rows, shooting in two directions out of one enclosure. You can read more about the 275 of these units at Soldier Field here.
It’s fascinating to see the stadium challenges get answered by people like Burrell who have the talent, know-how, and empowerment to do what needs to be done. I also wrote this recently, which will lead you to many more of Ventev’s stadium projects.
Finally- let’s see what you might now about the stadium Wi-Fi market. Any idea how many large venues are “out there”? My past blog “What’s the Big Deal With Stadium Wi-Fi?” will help you to appreciate this fascinating space. And in this space, you can bet that the WLAN designers and owners appreciate Ventev’s contributions.