With our reputation for setting speed records with our equipment firmly established, we are excited that also in 2015 we have achieved record-breaking results, now in another important area to our industry – efficiency. Additionally we have executed several, successful trial campaigns.
Before diving into these topic, I'd like to start with the basics:
What is spectral efficiency?
Spectral Efficiency is the information rate that can be transmitted over a given bandwidth. It is measured in bps/Hz (bps stands for bits per second). This has evolved over the last years a lot:
In 2015 you'll see the Newtec MDM6000 Satellite Modem with the all digital built-in Bandwidth Cancellation (BWC) technology, which sets the record puting 20 Mbps into 2 MHz. With a spectral efficiency of more than 10 bps/Hz, one can for example handle a bidirectional E1 in just 400 kHz.
10 MBPS / 1 MHZ IS REALITY!
Together with Intelsat we have achieved this mentioned world first for the amount of throughput in a single transponder, putting 20 Mbps into 2 MHz. The demonstration was conducted at Intelsat’s Fuchsstadt Teleport in Germany (see right picture).
Intelsat and Newtec engineers used the Newtec MDM6000 Satellite Modem with the all digital built-in Bandwidth Cancellation (BWC) technology to set the record.
This exciting result is the latest in a line of successes for Newtec, which has previously broken several speed barriers and has now demonstrated its industry-leading spectral efficiency. Maximizing bits per second per Hz has always been a priority for Newtec and is becoming increasingly important as satellite operators and service providers look to launch new services while also delivering higher performance and improved economics for their customers.
“It was great to see the efficiencies generated by Newtec’s technology firsthand and importantly, the operational benefits that it will deliver to our customers.”
Michael DeMarco, Senior Vice President, Operations at Intelsat
TEST CAMPAIGN AT VODAFONE FOR MOBILE BACKHAUL
As operators look for new solutions for mobile backhaul, we are pleased to reaffirm the suitability of our Newtec Dialog® and Mx-DMA™ technology for this market, following completion of a successful trial campaign at the Vodafone Innovation Park ;Lab, in Germany.
The tests leveraged multiple mobile traffic patterns, delivered with exceeding service quality made possible by Newtec Dialog. The trial also emphasized the dynamic possibilities of Mx-DMA to accommodate potential fading conditions due to choice of satellite, environment – for example, rain and dust – shadowing effects or interference and always ensure the highest throughput and efficiency.
Special focus was also put on assessing jitter and latency which can seriously impact service quality. The results further confirm the top performance of Newtec Dialog and Mx-DMA in these fields, making the combination a perfect fit for mobile backhaul. The resulting full compliance with industry standard remote stations and core equipment leads the way to eased deployments in all mobile networks. The test bed also included Sevis platforms for traffic optimization. To dive deeper into this topic, we have shared an article "Why & How Mobile Operators Embrace Satellite for Backhaul" together with our partner Sevis. It was published in 2014, but it is still relevant and worth to read.
“The tests with Newtec further confirm the adequacy of satellite for mobile backhaul.”
Andreas Dorstel, Head of Vodafone Innovation Park Environment
SATELLITE OPERATOR ABE GIVES THUMBS UP
I've underlined earlier, that getting the most out of satellite capacity is often operators’ top priority – which is why we were also happy when we, along with Latin American satellite operator Agencia Boliviana Espacial (ABE), transmitted more than 500 Mbps over 120 MHz using our MDM6000 series (as released in our press release mid of 2015).
The Ka-band trial campaign demonstrated three main use-cases, highlighting the versatility of our MDM6000 modems which, as well as being able to transmit up to 425 Mbps bidirectionally, can also operate at much lower rates as required for multicarrier applications:
- Major results included transmitting 2 Mbps over 1 MHz from the remote to the hub station in Amachuma, Bolivia, using a 1.2m antenna and 4W hub, ideal for applications like mobile backhaul.
- Meanwhile, 153 Mbps was transmitted over 36 MHz from the hub to the remote station using a 1.2m antenna and 4W hub, as well as a 9m, 200W hub, in a set-up typical of VSAT operators.
- The hub-to-hub (9m and 200W to 9m) test recorded a result of 257 Mbps into 60 MHz, an arrangement appropriate for IP Trunking and optical fiber restoration or back-up.
The test results, achieved over two months, were officially certified by ABE.
“These tests demonstrated the outstanding performance of Newtec’s equipment for a variety of applications and the high quality of our satellite services. The testing was conducted successfully and supported different standards, including DVB-S, DVB-S2 and DVB-S2X, and higher spectral efficiency levels with modulation schemes from QPSK to 256APSK.
Advanced coding and bandwidth optimization was also achieved through reduced roll-off factors and Newtec’s Clean Channel Technology®.”
Iván Zambrana, General Executive Director at ABE
Photo: Amachuma teleport; located in the La Paz department on the western side of Bolivia at an elevation of higher than 4,000m above sea level
I hope you enjoyed the read! Leave your comments in below's box.
Public Relations Director
This article was published in Newtec's Company Newsletter September 2015 issue, "Newtec News".
In this edition you'll find more industry news & trends, insights into customer projects and product updates. Enjoy it!