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4G LTE router can soon replace wired WAN

4G LTE is the latest wireless technology that has been deployed all around the world. Soon 5G network roll outs will pick up pace the trend in performance improvements in cellular connectivity will continue. The connectivity speeds and also the pricing per bit delivered have been improving steadily. Does this mean 4G LTE router is a candidate to replace your DSL, cable or fiber modem soon?

To answer this question fairly, we need to touch on the physics behind cellular transport. Wireless communications have come a long way since Motorola demonstrated the first cellular phone design many decades ago when the intend was only to make phone calls. Since then,  4G LTE routers became a viable option to provide Internet connectivity for small and even medium sized local networks, especially when powered by multi sim and the technology to intelligently manage the multiple WAN links, to address the main achilles heel with cellular – the unpredictability of the connectivity. No fault of the carrier, the 4G LTE networks are vulnerable to the slow fading and fast fading physics that govern wireless communications. Intelligent antenna technologies such as MIMO have helped, but unlike a wired Internet connection, the transport is not immune to the physical layer characteristics being predictable.

So with the current state, 4G LTE routers with only one sim card can provide great connectivity most of the time. The emphasis being on the term “most of the time”, as some times, the connectivity of the 4G LTE connection may suffer, or more accurately, WILL suffer, this is by nature of the communication transport, in this case the ether.

Does this mean you should not consider a 4G LTE router for your Internet connectivity application? In certain cases, you may not have any other options, i.e. wired connectivity may not be available in the location, or your use case may involve a vehicle or some other application on the go. In that case, 4G LTE router may be the only option. If your use case is business or mission critical, a multi sim 4G LTE router might be the answer.

4G LTE routers may use of the wireless sim card modem to connect to the WAN (Wide Area Network) to get out to the Internet and provide a LAN (Local Area Network) connectivity either via Wifi or an Ethernet cable. In multi sim 4G LTE routers, the idea is the same, however, instead of a single sim card modem, the router has access to 2 or more sim card modems to connect to the Internet. With 4G LTE routers with Broadband Bonding technology, the multiple Internet connections are intelligently managed to optimize the application performance. In other words, the unpredictable transports are managed to create a more predictable, stable and faster Internet connection.

4G LTE routers that have multi sim capabilities are certainly the way to go for use cases where wired line is not an option, but how about replacing an expensive wired Internet line, say an MPLS with a 4 sim 4G LTE router? In some cases, this is already happening where connectivity is brought into a location where connectivity can be lit up in a matter of minutes versus the long several month lead times of MPLS or fiber. 4G LTE routers with multi sim capabilities provides a very solid augmentation to any wired Internet line and the days that a 4G LTE router is a full replacement alternative to a wired Internet connection is not too far in the future, as long as the intelligence managing the multiple sim connections is built into the 4G LTE router.

 

Cahit Akin, CEO, Mushroom Networks, Inc. 

Mushroom Networks is the provider of Broadband Bonding appliances that put your networks on auto-pilot. Application flows are intelligently routed around network problems such as latency, jitter and packet loss. Network problems are solved even before you can notice.

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