Saturday, 13 May 2017

First Quarter " Open Flow (SDN) Technology for Managing Content Centric Networks "

The objective of this article is for our audience who are interested in the Content-Centric Networking (CCN) as the future internet architecture and services and that is why we put together this article from April's workshop proceedings at  12.00Hrs G.M.T


This article focuses on the use of Open Flow (SDN) Technology for Managing Content Centric Networks in the future internet and efficient service delivery. Managing the future internet will be based on policies that support named content. Much credit goes to Van Jacobson in his original idea from the 2009 seminar on named content and his recent project work on Named Data Networking Next Phase (NDN-NP)

In next generation networks, packet move through an open flow network. Open flow is a standardized protocol for interacting with the forwarding behavior of the switches from multiple vendors.          This provides a way to dynamically and programmatically control the behavior of switches throughout the network. Open Flow is a pertinent protocol in SDN solutions. The open network foundation (ONF) defines an open flow switch contains one or more tables.  Each is meant to hold flow entries.
Credit also goes to John Cosmas recent brilliant work that focused on multi-faceted evaluation of the control architecture and application in diverse environments  which gave us insight in this workshop.
Their contributions reveal that data synchronization is a significant NDN Communication primeval for distributed applications. Named data is a better abstraction for today’s communication than named hosts and presented Content-Centric Networking (CCN) as the future internet architecture.
Further demonstration of NDN capabilities in Internet of Things (IoT) and big data environments are work in progress.
 Our May 2017 workshop focuses on the evaluation of communication cost of multi-casting sync interests and designing more scalable and efficient solutions for delivering sync interest.
The Content Centric Networks model is developed around named content and not data location.     The pro of our technical report is that Content Centric Network can be utilized as Overlay Networks. 
The security of named content is guaranteed unlike IP networking where the host-based vulnerabilities are still germane issue.
Our Discussions on the limited understanding of the performance in realistic operational conditions of Content routers cache from a theoretical perspective to practical demonstrations are available on our website.
The big picture question is how do content providers and service providers handle the major research problem of scalability in content-centric networks? Various ICN projects introduced Content Centric Networking Routing with the main aim to anchor matching prefixes. This viable proposition is similar to the outcome of our technical report.  However, it eliminates the use of a pending Interest Tables (PIT) or forwarding information bases lookup before forwarding interests.  The next article will explore how CCN as a communications protocol can complement existing IP infrastructure and critically evaluate and discuss solution to forwarding interests criterion. 



NGIT systems has a global footprint. We are aware that some of our audience may not have the chance to visit us both in conferences and workshops, If your have specific questions about NGIT  Packet Flow Services and about our products, feel free to stop at our online chat room with one of our representatives and drop us a mail at corporatesales@ngittech.com.ng to tell you more about the company. right now,

Friday, 23 December 2016

Friday, 16 December 2016

2016 in Review -----Trends in Telecommunications, Media and Technology




Dear Audience, this article is a summary of moments in 2016 from all of us at NGIT, we hope you enjoy it!

We witnessed dramatic changes in telecommunication business in 2016 as the world is digitizing fast, and we saw the growth of the networks, number of terminals data volumes and carrier adapter of digitals among the consumers. Digital transformation is expanding in base across various industries and fully digitized like media, photography, news, music and travel while some of them are just becoming digitized. Digitization offers enormous market potentials in Telecoms in terms of their potential presence.

However, reality today shows that most of the telecommunication  operators are stuck on their traditional markets where they are faced with revenue profitability decline especially in Africa .  For instance in Nigeria, before the new suspended price floor of N0.90k/MB, the industry average for dominant operators including MTN Nigeria Communications Limited, EMTS Limited (Etisalat) and Airtel Nigeria Limited was N0.53k/MB. Etisalat offered (N0.94k/MB), Airtel (N0.52k/MB), MTN (N0.45k/MB) and Globacom (N0.21k/MB). The smaller operators/ new entrants charge the following: Smile Communications – N0.84k/MB, Spectranet – N0.58k/MB and NATCOMS (NTEL) – N0.72k/MB
These Prices were recently debated on for an increase by NCC for a better data price floor. All in the move to increase revenue profitability and ROI.

Telecoms are also lagging behind over the top companies digital command scalabilities. Telecoms of today are highly complex with many product and service combinations offered through various channels maintaining various platforms so they cannot move faster. Their cultures are still technology centric so it is not surprising today that their market capitalization are much lower than over the top internet companies. What telecoms should do as we look ahead into the year 2017 which is the opportunity for telecoms is to digitize. Digitize to define new business model, digitize the delivery model and embrace the digital culture. First they need to decide are they a connectivity players offering various connection services to various customers whether a consumers or residential? Are they a digital enabler offering various platforms to businesses that connect to end users? Or they are digital life provider for their customers tapping more into the service part of the market which is growing today with digitization. 

In doing so, telecoms can learn a lot from the over the top companies especially in the domain of the digital customer experience. Self-Service capabilities, 24/7 availability of the services all which are embraced throughout the personalization of the services. Those are the elements where telecoms can learn better   from over the top companies and be better. Telecoms should be simplified. They should eliminate non value edit part of their portfolios and they should simplify their operations. Eliminating services that don’t add value from the perspective of the customers. They should be developing a set of unique digital capabilities and they should embrace a culture which is much similar to successful digital start-ups for today. They should acquire new digital talent and collaborate internally and they  should transform their culture 

In essence, impart for telecoms in the year 2017 as we look ahead  is to Simplify, Digitize and Consolidate.

Friday, 28 October 2016

Annals of Multimedia Broadcast Multicast services

The objective of this month's article is for our audience who are interested in the Transmission Reliability of Multimedia Broadcast Multicast services and that is why we put together this article from today's workshop proceedings.  28th October 2016   12.00Hrs G.M.T


The proliferation of on-line media applications and digital entertainment have contributed to the exponential growth in Multicast-aware technology. This technology enabler has facilitated the delivery of best effort Quality of service (QoS) to a group of consumers on the global network. In recent times, the Internet Content consumers’ Quality of  Experience (QoE) grown from 40% in 2014 to 80% in 2016 based on Multimedia Broadcast Multicast service delivery. 
          A little background on Multimedia Broadcast Multicast services reveals that Multimedia Broadcast Multicast services is a point- to-multi-point interface specification for existing and  upcoming 3GPP cellular networks which is designed to provide efficient delivery of broadcast and multicast services both within the cell as well as within the core network. The broadcast transmission across multiple cells. It defines transmission by a single frequency network configurations. Target applications includes mobile TV and radio broadcasting as well as file delivery and emergency alert.
Deployment: MBMS Mobile broadcast technology has never been deployed by any operator in the world as suppose to other technology such as DBBH, ATSCMHIH DBTMM. Various mobile technology in the UK had conducted trials for MBMS based mobile TV. There is no indication that this trials resulted in any commercial deployment. In 2013, Verizon was the first operator to anounce the Bolunchi MBMS services.In 2014, over its LTE Networks. eMBMS is the LTE version of MBMS. AT&T subsequently announce plans to use the 700MH lower D block licences it acquired in 2011 from qualcomm for an LTE broadcast service.

In 2014, several major operators are lining to deploy and test the technology. In July 2014, Nokia networks demonstrated the use of LTE broadcast to replace broadcast traditional digital TV. This use-case remains controversial as some study are doubting the capability of LTE broadcast to address this use-case efficiently in its current version. In August 2014, ericsson and pokontel successfully tested the LTE broadcast by streaming the opening game of 2014, world volleyball championship to hundreds of guest in euro on majesty trademark national stadium in Poland on August 30th. 2015. Competing technologies of MBMS include DBTHDMB DBBHBSM and media flow.
However, due to spectrum scarcity and cost of building new broadcast infrastructure, some of these technologies may not be viable. Media flow has been deployed in the U.S by Verizon in relationship with Media flow U.S.A in corporated. However, the service was shut down in early 2011. DMBMDH trials has been on-going for more than a year now.  During the football 2006 championship in Germany. Always proprietary CMBS is a precursor to the multimedia Broadcast Multicast service. It was specified in 3gpps 6 using the existing UMTS infrastructure and real-time streaming protocol.

Technical Description: The MBMS feature is split into the MBMS bearer service and the MBMS user service and it been defined to be offered over both UTRA and LTE. MBMS bearer services include the multicast and broadcast mode but only the broadcast mode is available over LTE.  MBMS bearer service uses IP multicast to addresses for the IP flows.  The advantage of the MBMS bearer service compared to unicast bearer services is that the transmission resources in the core and radio network are shared. 1MBMS packet flows is replicated by GGSN, SGSN and RSC’s. MBMS may use an advanced counting scheme to decide whether or not Zero, one or more dedicated radio channel leads to a more efficient systems usage than one common radio channel. UTRAN MBMS offers up to 256kbits per MBMS bearer service between 800kbits and 1.7 with scell band. The actual cell band depend on the UE capability. MBMS offers between 32kbits and128 kbits. Up to 4 GSM time slot may be used for one MBMS bearer services downlink direction. The actual data rate of traffic flow depends on network dimensioning.

The MBMS user services basically the MBMS services Offers adopt the streaming and download delivery method. The streaming delivery method can be used for continuous transmissions like the mobile TV services. The download method is intended for euroE download euro services

To increase the transmission reliability, an application RFC code may be used. MBMS has been standardized in various methods of 3GGP and the first place standard on UMTS release 6. Release 6 was functionally frozen by the third quarter of 2004 and practical network implementations may be expected by the also end of 2007 at the best functional mobile terminal services. EMBMS has been standardized by various groups’ 3GGPs part of LTE release 9. The LTE version of MBMS referred to as multicast broadcast singular frequency network support based on FDM wave form and similar to other broadcast solutions such as DBBH. 3GGP technical specification MBMS bearer service. 

NGT systems has a global footprint. We are aware that some of our audience may not have the chance to visit us both in conferences and workshops, If your have specific questions about NGT Multicast and broadcast services and about our products, feel free to stop at our online chat room with one of our representatives and drop us a mail at corporatesales@ngittech.com.ng to tell you more about the company. right now,  
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