- September 9, 2021
- A2C+, Adaptive Dual Carrier, capex, double capacity, High Priority Traffic, higher MTBF, lowest TCO, OPEX, rural broadband, simplify deployment, TCO, Total Cost of Ownership
Demand for mobile data is soaring, and microwave is seen as the primary transport medium in rural and suburban areas. Aviat’s WTM 4000 enables double capacity (2+0) microwave links by housing two transceivers, two diplexers, and a 3dB coupler in one compact all-outdoor solution.
- April 22, 2021
- 11 GHz, 11GHz, 6 GHz, 6GHz, 80 GHz E-Band, IRU 600, L1LA, Layer 1 link aggregation, multi-band, multiband, multiband radio, OPEX, TCO, Total Cost of Ownership, WIFI 6e
With the current landscape of network economics and challenges associated with capacity and spectrum, having multiple tools for link deployments, capacity growth, and future-proofing are necessary. In this blog, we’ll discuss the concept of Microwave Multi-Band, or the use of two different microwave frequency bands over one link, and specifically the combination of 6 GHz and 11 GHz.
- October 13, 2020
- antenna sub-system, capex, how to reduce CAPEX, microwave antenas, MIMO, smaller antennas, Space Diversity, system gain, TCO, Total Cost of Ownership, Tower Lease, transmit power, wind-loading
One of the most significant contributors to the total cost of ownership of a microwave transmission network is the antenna sub-system.
Microwave spectrum cost is one of the largest TCO elements in many countries around the world, and as capacity demands grow, more spectrum is required. By combining a microwave and millimeter wave solution in the same product, like with Multiband radio, customers can achieve significant savings on spectrum costs.
By Stuart Little, Director of International Product Line Marketing
Papua New Guinea, or PNG, is one half of the island of New Guinea, along with offshore islands, located in the South Pacific immediately to the north of the Australian continent. The country is rugged and heavily covered by dense rainforest, which presents enormous challenges when it comes to establishing a national communications infrastructure. In most cases, deploying fiber routes is simply not practical nor affordable. Wireless is the only answer in these cases.
- December 20, 2018
- all-outdoor, Microwave Radio, MTBF, ODU, outdoor radio, radios, RF, RF Performance, sub-band free, TCO, Total Cost of Ownership
By Stuart Little, Director of International Product Line Marketing
In the past years, a few microwave vendors have introduced ‘sub-band free’ RF outdoor units into the market. The main claim of these radios is that a single hardware variant can be deployed in any frequency sub-band, simplifying and lower costs involved with ordering, deployment and sparing of microwave networks.
However, these new radios are not available in all bands and come with a number of limitations, including lower RF performance, larger size, and weight, higher cost, limitations in modulation and channel sizes, amongst others.
- July 30, 2013
- backhaul, custom survey, Ethernet, internet, Internet Protocol, microwave, microwave antennae, MIMO, Mobile network operator, network throughput, quantifiable data, TCO, Total Cost of Ownership
The general mobile industry sentiment has typically been that the capacity bottleneck is the biggest challenge in backhaul. Thus, the focus has been on adding more capacity to address the surge of 3G and now 4G traffic. So you might think that this concern would rank first, particularly among microwave-centric operators, who are often looking to maximize their network throughput. We recently commissioned the experts at Heavy Reading to do a custom survey to get some quantifiable data to clarify this key question and a few others.
85 mobile operators were selected and surveyed globally, including a good cross-section from both developed and emerging markets. The respondents were screened to ensure that they all had a stake in microwave-specific backhaul: 93 percent had deployed microwave and the rest had plans to deploy it. In fact, 45 percent were categorized as heavy microwave users—those where more than 50 percent of their cell sites were served by microwave backhaul.
So we asked this select group, which consisted of mostly planners, engineers and strategy leaders, “What is the biggest challenge your company faces regarding the future development and deployment of microwave backhaul?”
The results were interesting in that “total cost of ownership” actually eclipsed “increasing capacity” as their biggest challenge, as shown in the pie chart of survey responses below.
- March 15, 2012
- Aviat Networks, backhaul, Cell site, Gary Croke, hub and spoke topology, network topologies, Network topology, product marketing, Ring network, TCO, Topology, Total Cost of Ownership, Wireless network
To compare how different wireless backhaul network topologies perform under the same operating scenario, let’s analyze how a traditional hub-and-spoke and a ring configuration compare in connecting the same six sites (See table below). For the hub-and-spoke configuration, each cell site is provided 50 Mbps capacity in 1+1 protection. With five links and no path diversity, full protection is the only way to achieve five nines reliability. In this configuration, 10 antennas are employed, which average a large and costly 5.2 feet in diameter. Total cost of ownership for this six-site network is close to $700,000 for five years.
For a ring design for the same six sites, throughput of 200 Mbps is established to carry the traffic for each specific hop and any traffic coming in that direction from farther up the network. Designed to take advantage of higher-level redundancy schemes, the ring configuration only requires antennas that average 2.3 feet in diameter, which are much lower in cost compared to the antennas in the hub-and-spoke configuration. And even though the ring configuration requires 12 antennas and six links, its overall TCO amounts to a little under $500,000 over five years—30 percent less than TCO for the hub-and-spoke design for the same six sites.
This comparison is based upon deployments in the USA, where most operators lease tower space from other providers.
Senior Product Marketing Manager
- March 30, 2011
- Aviat Networks, Initial CAPEX, Initial OPEX, Microwave backhaul, Microwave Total Cost, North American Operators, Private Network, TCO, Total Cost of Ownership, Tower Lease
How Important is Initial CAPEX?
Are we seeing the forest or the trees?
Based on microwave Total Cost of Ownership (TCO) model posted earlier, the most significant contributor to total cost is ongoing OPEX.
We see an increasing trend of operators making decisions on backhaul solution based mostly (sometimes solely) on price (or initial CAPEX). While initial CAPEX is important, if the goal is lowest cost, this can be problematic approach as initial CAPEX it is not the most significant contributor to total cost. Ongoing OPEX is key.
Perhaps a better approach would be to focus on features most impacting lowering total costs. For instance, adaptive coding and modulation can lower antenna sizes – which can reasonably reduce 10 year TCO by as much as $48,000 (which is 2-3x more than initial CAPEX). Deploying ring architectures with high layer (L2/L3 or packet-based) failure recovery techniques can enable lower per hop reliability and smaller antennas – further lowering costs.
Microwave Backhaul Total Cost of Ownership
Product Marketing, Aviat Networks
- March 24, 2011
- 4G, Aviat Networks, Backhaul Bill, CTIA, CTIA Tower Technology Summit, Gary Croke, LTE, Product Marketing Manager, TCO, Total Cost of Ownership
CTIA is always an interesting event especially the Tower Technology Summit. Today, I sat on a CTIA panel session to discuss the topic of “Microwave Backhaul Gaining Momentum”, along with two other colleagues from other microwave companies. The purpose of the session was to discuss the proposed changes to FCC Part 101 rules listed in 10-153 for fixed microwave links. Sounds pretty dry? Not really, as the proposed changes being considered by the FCC are intended to ease some of the restrictions placed on microwave links operating in the lower frequency bands, and also to enable more flexible use of technologies like Adaptive Modulation. In short, good ideas to make microwave even more cost effective for operators.
Each panelist gave a short talk on updates to the new proposed changes and what these changes mean for microwave backhaul. At the high level, there was clear agreement that the current rules are pretty old, outdated, and need modification to support the industry’s migration to all IP. However, there was broad recognition that changes probably won’t happen overnight!
The panel had a heavy focus on total cost of ownership (TCO) for microwave solutions, and how smaller antenna sizes can play a significant factor in reducing costs. I presented our view of a TCO model (that we recently presented in more detail on a recent Strategies for Lowering Your LTE/4G Backhaul Bill webinar with the WCAI ), and discussed technology and network design approaches to utilize smaller antennas. You can download a copy of the presentation slides here. Aviat Networks’ CTIA Tower Technology Summit Presentation
LTE backhaul capacity requirements and backhaul options for small cell architectures were also topics of discussion. Our perspective on this is that LTE backhaul capacity requirements are often over-hyped and overstated, leading to poor backhaul decisions, which seemed to garner a lot of “head-nods” from attendees. There was also general agreement from the panelists that new backhaul solutions were needed to address the small cell backhaul challenge and a “one-size-fits-all” product would surely not meet the needs.
We are just touching on the tip of what will become a hot topic of discussion in the months and year ahead. For more on this topic check back next week for my follow up post to Microwave Total Cost of Ownership (TCO) Pt. 1.
Product Marketing, Aviat Networks