September 18, 2019
Don’t Get Burned with Half-Duplex Capacity Claims around FDD vs. TDD
It is finally time to uncover the mystery between FDD vs. TDD, specifically the importance of FDD as a key element in network performance.
FDD stands for Frequency Division Duplex, and TDD stands for Time Division Duplex. Both FDD and TDD are two spectrum usage techniques, both forms of duplex, used in mobile or fixed wireless broadband links. It is essential to these links that transmission can occur in both directions simultaneously so that data can flow downlink (DL) and uplink (UL) at the same time without any noticeable interruptions.
September 10, 2019
It’s not uncommon for public safety agencies to make one-time purchases of microwave technology and then leave the network untouched for years.
Outdated networks can lack the capacity and functionality needed to meet the changing needs of stakeholders and customers. They’re more likely to experience issues as customer services evolve. Recurring updates also ensure continued interoperability with other evolving equipment in the network, further reducing failures.
August 29, 2019
For years, E-Band has been touted as the next big thing. Likewise, 80GHz technology and solutions have been around for several years, yet the demand has not taken off. Why is that? Well, there are a few excellent reasons:
August 15, 2019
Aviat Design, Aviat’s cloud-based link planning application, supports WTM 4800 E-Band and Multi-band designs. Aviat Design is the industry’s first and only integrated Multi-band link design solution showing a combined view of availability and capacity for the link. This enables easy, fast, intuitive E-Band and Multi-Band designs (all specs included, no pathloss files to download or update, easy cloud access). Popular design tools will require 2 separate link calculations for Multi-Band, and will not result in a combined design for the link, making it virtually impossible to understand the expected link performance or capacity or estimate the proper antenna size. Aviat Design is FREE for use at www.aviatcloud.com.
August 9, 2019
Multi-Band involves combining E-Band (70-80GHz) with traditional microwave (6-42GHz) on a single microwave link, usually with a single antenna on each end. Multi-Band drastically improves availability and distance of E-Band links and addresses other issues like pole sway and antenna alignment. If you are thinking of E-Band or microwave, consider Multi-Band, in particular single-box Multi-Band. Check out our infographic below to find out how single-box Multi-Band means high value at a cost that makes sense.
July 18, 2019
Most operators of WISP backhaul networks have had difficult experiences with Power over Ethernet (PoE) cabling solutions, affecting both the economics and operations of their networks. Today, Aviat Networks is recommending, with increasing frequency, a dual cable system: fiber to carry data at high speeds, and copper to carry DC power only. This solution offers significant advantages over CAT5 cabling, which carries both data and DC power over a single Ethernet cable.
June 21, 2019
Vodafone Fiji needed a solution to provide over 2 Gbps of capacity over a distance of more than 6.5 kilometers, but there was only one problem: lack of frequency spectrum. Vodafone only had a single 80 MHz channel allocation in the 11 GHz band. Aviat was able to design a link using their WTM 4000 all-outdoor radio platform, employing Line-of-Sight (LOS) MIMO to quadruple the efficiency of the single available frequency channel.
June 4, 2019
By Said Jilani, Sr Customer Solutions Architect
Segment Routing is a new routing paradigm that aims to optimize, simplify, and improve the scalability of IP/MPLS based networks. Segment Routing utilizes source-based routing scheme where a network node steers a packet based on a list of instructions carried in the packet header (called “segments”). The list of segments carried in the packet header provide a strict or a loose specification of the required network path or tunnel eliminating the need for transit nodes to hold and maintain that path/tunnel information.
May 29, 2019
For new entrants and smaller WISPs, cost is often the major factor in infrastructure procurement. However, many WISPs who used to be in those categories are today enjoying significant growth, prompting them to rethink infrastructure investments as part of their overall business plan.
April 18, 2019
By Jim Hong, Director of Wireless Broadband Solutions
The new and exciting news in Government Funding – The latest round of CAF-II has been awarded and now WISPs and Rural Operators are expanding their coverage into rural areas that have little or no Internet access.
What comprises complex rural networks? A combination of microwave Point-to-Point and Point-to-Multipoint technologies are being used to reach remote WISP and Rural Operator customers and deliver high-speed internet: up to 20 Gbps on the backbone and hundreds of megabits per household.
October 23, 2018
There has been significant growth in backhaul products operating in millimeter frequency range recently. Being subject to rain attenuation, and because different environments can have different characteristic attenuations, careful and precise calculation of theoretical distances is critical.
March 21, 2018
In 2017, Northern California Power Agency (NCPA) was faced with the challenge of linking two microwave sites in mountainous terrain with no line of sight between them. They were looking for an effective, cost-efficient way to complete the microwave segment of their network in California’s Northern Central area.