Backhaul Collocation and GPS Synchronization


Shelby Broadband Uses Mimosa Backhaul Radios to Maximize Throughput and Decrease Latency

Introduction

Shelby Broadband, a leading Internet Service Provider and facilities-based CLEC covering the Bluegrass Region of Kentucky, today serves over 3500 subscribers. Shelby is known for its robust customer service and vast technical expertise. Shelby Broadband has been awarded “Operator of the Year” by the membership of the Wireless Internet Service Provider’s Association (WISPA).

Simpsonville, Kentucky
DJ Anderson
Operations Manager
10+ employees
Approximately 3500 customers
http://www.shelbybb.com/

Shelby Broadband employs 4 backhaul links to provide Internet service to the community of Shelbyville, Kentucky. Previously, Shelby used Mikrotik radios with dual polarity 24 dBi antennas. The links were stable, but the community was consuming more bandwidth than the existing radios could provide. The network used 40 MHz channels, and three of the four connections frequently reached maximum capacity during peak hours. Links ranged from 4-15 miles.

Until Mimosa, I don’t know that I’ve had any other 5 GHz GPS that has worked just as advertised.

Shelby recently upgraded all four links using both B5 (integrated) and B5c (connectorized) Mimosa backhaul products.

A more stable network for Shelbyville

DJ Anderson, Operations Manager of Shelby Broadband, says, “This [equipment] is some of the easiest gear I have ever worked with. It comes with absolutely everything you need, like someone took the time to think about every piece necessary for the installation before shipping the product.”

After moving from Mikrotik to Mimosa B5s, Shelby gained the ability to GPS-synchronize the backhaul radios. The previous radios had to be vertically separated 10-15 feet apart and could not be collocated on frequencies that were close to one another. This constraint caused a problem in the Shelbyville area where there are currently 12 different 5 GHz radios operating on a single tower.

Collocation of the backhauls caused an immediate improvement in the network. Latency went from 100 ms during peak hours to around 6 ms, or 3 ms each way, with the Mimosa B5 radios. Shelby experienced absolutely no stability issues on any of the links.

Anderson states, “Until Mimosa, I don’t know that I’ve used any other 5 GHz GPS that has worked just as advertised”.

Conclusion

The Numbers

All links use 40 MHz channel width

  • The Longest: 14.7 miles
    • 40 Mbps 160 Mbps
  • The Shortest: 3.6 miles
    • 80 Mbps 300 Mbps
    • Using TDMA traffic balance
  • Latency: 100ms 6 ms

Anderson said, “After the installation, I experienced excellent support working together with Mimosa on my network configuration. Just being able to call someone that knows the system inside and out, that is the big difference with Mimosa.”

Anderson says that Shelby plans to continue exploring Mimosa’s Auto Everything mode. “We are especially excited about the fact that you can install three radios, and the radios select the best channels for themselves. I haven’t found another product that automatically selects frequencies in this way.”

Get Mimosa

Shelby Broadband is taking its network to the next level. Let Mimosa do the same for your company. The next generation of broadband is here. Contact us for the latest and availability in Mimosa’s backhaul products.