MOST TRUSTED NEWSWIRE PRESS RELEASE DISTRIBUTION
PRTODAY / NewswireToday press release distribution service network
Written by / Agency / Source: NEC Corporation
Check Ads Availability|e-mail Article

Are you the owner of this article?, Turn it PREMIUM with your LOGO instead - and make it 3rd party Ads-Free! within the next hour!

NEC Successfully Demonstrates Real-time Digital OAM Mode Multiplexing Transmission over 100m in the 150GHz-band for the First Time - Supports increasing demand for 5G and beyond 5G networks - NEC.com
NEC Successfully Demonstrates Real-time Digital OAM Mode Multiplexing Transmission over 100m in the 150GHz-band for the First Time

 

NewswireToday - /newswire/ - Tokyo, Japan, 2020/03/10 - Supports increasing demand for 5G and beyond 5G networks - NEC.com. NEC; TSE: 6701

   
 
Your Banner Ad Here instead - Showing along with ALL Articles covering IT Services / Network Management Announcements

Replace these Affiliate Programs at ANYTIME! Your banner here within the next hour. Learn How!


 

NEC Corporation, a leader in the integration of IT and network technologies, announced today the world's first (*1) successful demonstration of real-time digital wireless Orbital Angular Momentum (OAM) mode multiplex radio transmission combining polarization multiplexing transmission (*2) over 100m in the 150GHz-band. This technology is expected to help solve increasing demands for high-capacity wireless connections for networks in the 5G era and beyond.

NEC has an accomplished history of developing OAM mode multiplexing technology, including the successful demonstration of OAM mode multiplexing transmission over 40m in the 80GHz-band in December 2018 (*3). This time, NEC has succeeded in extending the transmission distance up to 100m, 2.5 times further, and increased the capacity by as much as two times with 16 streams by adding polarization multiplexing to OAM mode multiplexing, as compared with the 80GHz-band demonstration.

NEC plans to apply this technology to its iPASOLINK series of super compact microwave radio systems, mmWave radio products, and mobile backhaul solutions that enable ultra-high capacity for 5G and beyond 5G (B5G) networks.

Due to rapid increases of data capacity in 5G networks, traffic volumes between 5G base station aggregation terminals could reach up to 100Gbps. Moreover, an extremely large number of base stations are required for detailed coverage, especially in ultra-dense urban areas, where the cell grid becomes heavily dense. Since it is difficult to connect these high-density cell sites with just optical fibers, expectations for wireless networking, especially in terms of easy and flexible installation, are increasing.

However, it is necessary for traffic between 5G base stations to reach up to 100Gbps, and it is extremely challenging to create sufficient transmission capacity with conventional technologies, such as using wider channels, multi channels or increasing the modulation scheme. Therefore, OAM mode multiplexing technology, which has the potential to support significantly higher capacity due to rich multiplicity, is attracting a great deal of attention.

OAM is one of the physical characteristics of electro-magnetic wave propagation. One feature of an OAM signal is its spiral phase front in the propagation direction. The number of spiral planes in a signal is called an OAM mode, and the shapes of all modes are different related to the rotating direction of the wave; this means that all of the OAM modes are independent of each other. Therefore, multiple OAM modes transmitted on the same channel simultaneously can be separated and demodulated by receivers. This is an OAM mode multiplexing transmission technology as a spatial multiplexing of electro-magnetic waves on the same path. In addition, OAM mode multiplexing is independent of polarization multiplexing as well. The multiplicity can be further increased with the combination of both multiplexing technologies.

NEC announced the development and successful demonstration of a real-time digital signal processing circuit in December 2018. This achieved a wireless transmission over a distance of 40m with a modulation of 256QAM in the E-band (71 to 86GHz) by multiplexing 8 OAM modes, however this was used for just one polarization only.

In the latest demonstration, twice as many modes have been multiplexed for 16 streams of 256QAM modulated signals by adding polarization multiplexing with the OAM mode multiplexing technology. 14.8Gbps (8 modes × dual polarization x 8 bit/symbol × 115 Mbaud) have been transmitted using a symbol rate (*4) of 115 Mbaud.

Moreover, NEC achieved transmissions across 100m, 2.5 times the previous demonstration, with almost the same size antenna diameter, suppressing the divergence of OAM mode signals due to propagation by using D-band (130 to 174.8GHz), which is a higher frequency band than E-band.

This demonstration transmitted at an RF frequency of 157GHz through a radio equipped with D-band RF devices developed by NEC.

In order to perform OAM mode multiplexing transmission combined with polarization multiplexing, it is necessary to perform both OAM mode and polarization separation on the receiving side and to retrieve information with high SINR (*5).

NEC’s newly developed adaptive (*6) digital signal processing circuit provides highly accurate extraction of the desired signals, even under conditions in which there is interference with OAM inter-modes as well as cross polarizations due to equipment imperfections or volatilities of the propagation environments. As a result, an extremely high spectrum efficiency of 128bps/Hz (*7) has been achieved.

Going forward, NEC plans to further enhance transmission distance, and to realize a transmission capacity of more than 100Gbps with LSI implementing the digital signal processing circuits, and wider bandwidth up to 1GHz. NEC aims to apply these technologies for the backhaul of 5G base stations as well as the fronthaul between CU (Central Unit: aggregation base stations) and DU (Distributed Unit: remote stations).

This research and development was conducted as part of "The Research and Development Project of OAM Mode Multiplexing Radio enabling Ultra High Capacity Transmission in Millimeter wave bands" under a contract with the Ministry of Internal Affairs and Communications, Japan.

(*1)According to NEC research.
(*2)Multiplexing of electro-magnetic waves in vertical and horizontal directions. As they do not interfere with each other, the technology has been conventionally used to achieve double-capacity in the wireless transmission.
(*3)Please refer to the following: nec.com/en/press/201812/global_20181219_02.html
(*4)In digital modulation, the transmission symbols are switched at fixed time intervals. The reciprocal of this switching interval is called baud rate (unit = baud).
(*5)Signal to interference / noise power ratio. Higher SINR value is required to obtain higher spectrum efficiency.
(*6)Ability to change the control automatically with the change of environmental conditions.
(*7)The transmission capacity per 1Hz. The higher the value, the higher the efficiency of the radio wave use.

About NEC Corporation
NEC Corporation (nec.com) is a leader in the integration of IT and network technologies that benefit businesses and people around the world. The NEC Group globally provides "Solutions for Society" that promote the safety, security, efficiency and equality of society. Under the company's corporate message of "Orchestrating a brighter world," NEC aims to help solve a wide range of challenging issues and to create new social value for the changing world of tomorrow.

NEC is a registered trademark of NEC Corporation. All Rights Reserved. Other product or service marks mentioned herein are the trademarks of their respective owners. ©2020 NEC Corporation.

 
 
Your Banner Ad Here instead - Showing along with ALL Articles covering IT Services / Network Management Announcements

Replace these Affiliate Programs at ANYTIME! Your banner here within the next hour. Learn How!


 

Written by / Agency / Source: NEC Corporation

 
 

Availability: All Regions (Including Int'l)

 

Traffic Booster: [/] Quick NewswireToday Visibility Checker

 

Distribution / Indexing: [+]  / [Company listed above is a registered member of our network. Content made possible by PRZOOM / PRTODAY indexing services]

 
 
# # #
 
 
  Your Banner Ad showing on ALL
IT Services / Network Management articles,
CATCH Visitors via Your Competitors Announcements!


NEC Successfully Demonstrates Real-time Digital OAM Mode Multiplexing Transmission over 100m in the 150GHz-band for the First Time

Company website links NOT available to basic submissions
It is OK to republish and/or LINK any newswire for any legitimate media purpose as long as you name NewswireToday and LINK as the source.
 
Newswire Today - PRZOOM / PRTODAY disclaims any content contained in this article. If you need/wish to contact the company who published the current release, you will need to contact them - NOT us. Issuers of articles are solely responsible for the accuracy of their content. Our complete disclaimer appears here.
IMPORTANT INFORMATION: Issuance, publication or distribution of this press release in certain jurisdictions could be subject to restrictions. The recipient of this press release is responsible for using this press release and the information herein in accordance with the applicable rules and regulations in the particular jurisdiction. This press release does not constitute an offer or an offering to acquire or subscribe for any NEC Corporation securities in any jurisdiction including any other companies listed or named in this release.

IT Services / Network Management via RSSAdd NewswireToday - PRZOOM Headline News to FeedBurner
Find who RetweetFollow @NewswireTODAY

Are you the owner of this article?, Turn it PREMIUM with your LOGO instead - and make it 3rd party Ads-Free! within the next hour!


Read Latest Articles From NEC Corporation / Company Profile


Read IT Services / Network Management Most Recent Related Newswires:

NEC Develops Learning-based Communications Analysis Technology Enabling High Quality Local 5G Without Network Specialists
Thales Selects Google Cloud to Expand its eSIM Management Solution
Arista Delivers Cognitive WiFi for Collaboration, Video and Chat Applications
ScienceLogic’s Behavior-Based Monitoring Forges a New Path for IT Service Delivery
Evolve IP and Pax8 Announce Partner Agreement to Provide Integrated Microsoft Teams and Cisco Voice Services
TWT Selects Ribbon to Support its Customers’ Digital Transformation
NEC and Intermedia Announce Strategic Global Partnership to Deliver Cloud Communications, Collaboration, and Contact Center Solutions
IBM and Turbonomic Partner to Help Customers Assure Application Performance in a Multicloud World
SAS Recognizes Global Partner Innovation and Collaboration
Poka Lambro Selects Ribbon-ECI for Future-proof Connectivity in West Texas
Infinera Unveils the Next Phase in the Evolution of Compact Modular Optical Transport Solutions
Rakuten Mobile and NEC Begin Production of Open RAN 5G Radio Equipment
Trustwave Named a Leader in Two IDC MarketScapes on Asia Pacific Cybersecurity
Viettel Rolls Out Nationwide 5G-ready Timing Solution with ADVA and NEC
Ribbon’s Intelligent Edge Solutions Certified for Microsoft Teams Direct Routing Voice Calling Capabilities

Boost Your Social Network
& Crowdfunding Campaigns


LIFETIME SOCIAL MEDIA WALL
NewswireToday Celebrates 10 Years in Business


PREMIUM Members


Visit  RightITnow, Inc.

Visit  La Bella Bakery Artisan Bakery Arizona





 
  ©2020 NewswireToday — Limelon Advertising, Co.
Home | About | Advertise/Pricing | Contact | Investors | Privacy/TOS | Sitemap | FRANCAIS
newswire, PR press releases distribution service magazines engine news alert newsroom press room breaking news public relations articles company news alerts newswiredistribution ezine bizentrepreneur biznewstoday digital business report market search pr firms agencies reports distri-bution today investor relation successful internet entrepreneurs newswire distribution prtoday.com newswiredistribution asianewstoday bizwiretoday USA pr UK today - NOT affiliated with PRNewswire as we declined their partnership offer in 2013
 
PRTODAY & NewswireTODAY are NOT affiliated with USA TODAY (usatoday.com)