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Broadband Carrier Quandary: Exploit Bandwidth Scarcity, or Reduce It?

Rob Frieden

Comcast enhanced the value position of its broadband subscriptions by increasing the monthly data allowance to 1 Terrabyte (1000 Gigabytes). See Comcast Announcement. As an independent, unsponsored researcher, I can say "Thank You Comcast" without adverse consequences and only a bit of irony. This company does much to displease, but an expanded data allowance offers a winning proposition.

Consumers win, because Comcast has opted not to create artificial scarcity with an eye toward running up subscribers bills. While one subscriber's glut maybe another's scarcity, 1000 Gigabytes offers a generous allowance. Most subscribers will not have to ration their usage including actively cutting off advertisements that increasingly seem to launch despite attempts to prevent "auto play."

Comcast wins, because longer and stickier subscriber viewing typically generates more revenues for the company. Comcast operates in what economists describe as a double sided market. The company generates revenues from downstream, broadband subscribers and it also receives payments from upstream carriers, such as Content Distribution Networks, as well as content creators and distributors, such as Netflix.

Additionally, Comcast can accommodate ever increasing demand for bandwidth quickly, efficiently and inexpensively. The company need only reallocate a 6 MegaHertz channel from video carriage to broadband carriage. Aljazerra America's sign off created a candidate channel for reassignment. See Aljazerra America Signoff Cable television networks typically now have ample bandwidth affording latitude in assigning capacity for video, data and other services. A technology known as cable bonding makes it possible to add broadband capacity in 6 MHz increments.

As cable companies expand broadband data rates, wireless carriers persist in rationing access with monthly allocations typically in 1-10 Gigabyte range. Wireless carriers currently do confront scarcity, particularly if many subscribers in the same vicinity try to stream video at the same time. As well, wireless carriers do not have the same quick, easy and cheap opportunities to expand broadband bandwidth, although they can install more towers ("cell-splitting"), encourage subscribers to incorporate their wired broadband subscription with cellphone service and acquire more spectrum.

Currently, wireless carriers appear quite adept at finding the sweet spot that balances scarcity abatement strategies with scarcity-based pricing. These carriers have paid billions for auctioned off spectrum, but they also want to use unlicensed, free Wi-Fi spectrum to accommodate growing demand, most probably without a data rate increase. Additionally, they can rely on the spectrum scarcity rationale to justify many tiers of service with pricing rising significantly as data rates increase. Few current subscribers have truly unlimited data plans, because the service agreement authorizes the carriers to reduce (throttle) delivery speeds to rates that do not support video streaming.

Wireless carriers can exploit spectrum scarcity to support a much higher per Gigabyte cost of service. Comcast just widened this differential.

By Rob Frieden, Pioneers Chair and Professor of Telecommunications and Law
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Related topics: Broadband, Networks, Telecom, Wireless
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Rob,Note that an SD or HD channel Frank Bulk  –  May 03, 2016 9:04 AM PDT

Rob,
Note that an SD or HD channel does not use the full 6 megahertz when it's digital.  You can fit 10 to 12 SD channels or three, even possibly four HD channels in 6 megahertz.
So removing Al Jazeera didn't give them another 38 Mbps of downstream bandwidth.

Bandwidth Available for Reassignment by Cable Companies Rob Frieden  –  May 03, 2016 10:32 AM PDT

Hello Frank:

Fair point: compression techniques make it possible to load more than 1 video channel in a channel with 6 MHz. My main point is that there's plenty of bandwidth for reassignment to data services.

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