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Best Practices for Ultra Low Latency Microwave Networks
In today’s ultra-competitive High Frequency Trading markets, speed is everything, and recently wireless technologies, and specifically microwave networking, have been recognized as a faster alternative to optical transport for ultra-low latency financial applications....
Diversity, Hot Standby and Alarms for Wireless Backhaul—Oh My!
Do not be Alarmed by this latest video in the Radio Head Technology Series (complimentary registration). For the insider’s perspective on Hot Standby, we will not keep you waiting. Dick Laine, Aviat Networks’ principal engineer, has many informed views on Diversity...
Microwave Backhaul for Public Safety LTE
Public safety agencies will soon experience a dramatic improvement in communications capabilities enabled by advances in technology. New broadband multimedia applications will give first responders and commanders alike far better situational awareness, thereby...
4G Upgrade Path Drives Backhaul Migration in Kenya
Migrating legacy mobile backhaul networks that were designed for TDM traffic to add support for high-speed Ethernet data for 3G and 4G mobile technologies is one of the biggest challenges for operators worldwide. Each case is unique and poses its own quirks and...
Protection and Diversity: 100 Percent Uptime the Goal
Traffic disconnect is unacceptable for most microwave systems, especially for homeland security and utilities. But Aviat Networks Principal Engineer Dick Laine says that it is economically unviable to have a microwave radio system that provides absolutely 100 percent...
The Real Story about Random Early Discard (RED)
What is RED and its Effect on Queue Control? Random Early Discard (RED) is a data queue control mechanism to improve data utilization during network congestion. Some radio vendors have made exaggerated claims about its capacity to improve “radio link utilization.” To...
42GHz: A New Global Standard for Wireless Backhaul?
An ever-increasing demand for spectrum has recently turned focus on the 42GHz band. Initially opened in some European countries following the development of ECC REC(01)04, the recently published ECC Report 173 states 12 countries have opened this band including...
Is the Backhaul Really the Bottleneck for LTE?
The popularity of smartphones and tablets, motivated by the launch of the iPhone (2007) and the iPad (2010) have created a dramatic increase in mobile data consumption. The need to provide higher throughputs at the base station level to serve this demand has concerned...
What is More Susceptible to Rain Outage, Vertical or Horizontal Radio Signals?
Ever wonder which antenna polarization is more susceptible to rain outage? Vertical? Horizontal? Which should you use for very long hops? What would you do besides add extra fade margin to mitigate rain outage? Design a shorter path or use a lower frequency band?...
Mobile Network Modernization in Africa
Throughout Africa a wind of change is blowing as mobile network operators ponder, and in many cases implement, a wave of network modernization. The trigger for this is multi-faceted. Booming subscriber growth, introduction of new data services and arrival of new...
Record 180 km Hybrid Diversity IP Microwave Link
Link between Honduras and Belize Crosses Water and Land Last year I wrote about the world’s longest all-IP microwave link, stretching 193 km over the Atlantic Ocean in Honduras. Aviat Networks and Telecomunicaciones y Sistemas S.A. (TELSSA) designed and implemented...
The Modulation Arms Race: A Case of Diminishing Returns
There's a new arms race in the microwave industry, and it's over who can claim support for the highest QAM level. Now two vendors are out in the market fighting it out over who had 2048QAM first, yet go back a little more than 12 months and 512 or 1024QAM had barely...