CellMax Technologies, says:
We have had antennas since the days of Guglielmo Marconi, the Italian scientist who invented the radio a little over 100 years ago. So by now we should all know how to use antennas. But do we? With data replacing voice as the ‘killer application’ in the networks, antenna tilt – the angle in which the antennas are directed – becomes a serious issue and an area where many base stations today are clearly suboptimized.
The long narrow form of the typical array antennas gives them a fan-shaped radiation pattern, wide in the horizontal direction and relatively narrow in the vertical direction. There is usually a downward beam tilt, or downtilt, so that the base station can more effectively cover its immediate area and not cause radio frequency interference to distant cells. For good coverage and call quality, the signal must be strong in the desired radiation area, but drop of sharply where it is not needed or where it interferes with signals from other base stations.
You can compare with a car’s headlights: you want to see everything as clearly as possible in the direction you are travelling, but don’t want to waste energy by illuminating something irrelevant.
The most common antenna in a three-sector base station is the 18 dBi antenna with 65° of horizontal beamwidth and around 6.5° of vertical beam width. The 15 dBi antennas are still quite common, especially on the lower frequencies, with a vertical beam width of around 14°. Most of the planning experience and rollout methods for mobile networks are based on these two antenna types. They are built on the assumption that there are interfering signals not in the adjacent cell, but further away. But in 3G and 4G systems, there is the interference mainly coming from the next cell; there are no longer any “transition zone” between service area and “disturbance area”.
So what does that mean in practice? Well, with data surpassing voice in new 3G and 4G mobile networks, interference is different and so must the antennas be to stay effective. The efficiency of a cellular network depends on its correct configuration and adjustment of radiant systems: their transmit and receive antennas. One of the more important system optimizations task is based on correctly adjusted tilts, or the inclination of the antenna in relation to its axis. When the antenna is tilted down, we call it 'downtilt', which is the most common use. The tilt is used when operators want to reduce interference and/or coverage in some specific areas, having each cell to meet only its designed area.
With data being the networks’ new “killer application” instead of voice, a high carrier-to-interference ratio (C/I) is the key parameter for efficiency, data rate and general success. Carrier-to-Interference ratio (C/I) is the ratio of desired signal power in an RF carrier to the unwanted interference power in the channel. In voice, it was a waste to have very high C/I. But with data replacing voice in the networks we want to have high data rate all the way to the cell border. Basically, we would like to have a coverage that provides a constant signal level all the way to the cell border and there, suddenly, magically, drop to zero. This is of course not possible, but antennas with sharp roll-off can help us to get a lot closer to that ideal situation.
In most sites a sharper upper roll-off will provide higher C/I and less soft handover load. Both of which will increase performance and release capacity, often by over 10 dB in C/I improvement can be seen if the tilt is properly optimized with an antenna having a sharper roll-off curve and high efficiency.
This sounds too good to be true! Can you really improve network efficiency by just swapping the antennas and tilting them differently? Yes, you can. But it comes at a price. It requires both a very accurate tilt setting and a better understanding of how to use the very sharp cell border that these antennas give. Basically, it means that setting tilt after the scale on the tilt bracket is history. Half a degree makes a lot of difference. So, use a good digital leveler.
The conclusion is that most sectors would benefit significantly from an antenna with higher gain and a sharper upper roll-off curve than the standard 18 dBi can offer. Almost every site can perform better if the tilt is optimized better and more often. That is an easy and inexpensive way to improve the networks’ efficiency.
Tuesday, May 21, 2013
Monday, May 20, 2013
- Frank Huerta, CEO, TransLattice, says:
The new version of the TransLattice Elastic Database (TED) can now be deployed on Dell Cloud On Demand. Enterprises around the world are looking to mitigate the risks of outages, data location compliance and vendor lock-in. These enterprises need cost-effective, resilient cloud solutions that bring corporate data closer to remote users, resulting in improved response time for those users. TransLattice’s new version 3.0 of TED effectively solves these issues.
TransLattice has developed the world’s first geographically distributed Relational Database Management System (RDBMS) that enables distribution across multiple Dell Cloud data centers while appearing to the end-user as one cohesive database. Running databases in the cloud, in multiple regions, remote users experience exceptional response time and due to the additional redundancy, the organization achieves unparalleled database availability.
TransLattice Elastic Database 3.0 provides numerous advantages to Dell’s users:
- Creates a highly available, fault-tolerant database fabric comprised of all-active nodes and capable of being administered from anywhere on the Dell network
- Positions mission-critical data closer to the edge of the network for improved response time for customers, partners and employees
- Scales easily by adding nodes on demand with no downtime
- Spans multiple Dell data centers, enabling global visibility
- Controls location of data by policy, enabling simple data location compliance
- Costs far less than traditional SQL databases
Dell Cloud on Demand is an enterprise-class, multi-tenant public cloud solution that is hosted in Dell’s secured data centers. By deploying TED on the Dell Cloud, multi-national organizations achieve truly distributed and scalable databases for their global applications while minimizing capital and operational expenses. TED 3.0 is the first and only RDBMS to span Dell’s multiple public cloud networks, while retaining the ability to control data location via policy, and acting as one cohesive database to the end user.
Friday, May 17, 2013
FiberMedia’s Director of Sales Engineering Discusses the Company’s Key Service Offerings and How FiberMedia’s Solutions Help Enterprises Succeed
- Greg Nares, Director of Sales Engineering for FiberMedia Group, LLC, a leading data center services provider with facilities throughout the New York metropolitan area and Cleveland, OH, recently sat down for an interview to discuss industry trends and how their service offerings provide a competitive edge.
Explain the types of solutions that FiberMedia offers?
FiberMedia provides Intelligent Data Center Solutions to enterprise customers. Intelligent Data Center Solutions seamlessly deliver both the resiliency and security of physical infrastructure and the flexibility and cost-effectiveness of the Cloud. The company’s data centers are strategically located in six markets offering both primary and disaster recovery/business continuity services. Locations include Secaucus NJ, Westchester NY, Manhattan NY, Brooklyn NY, Jersey City NJ, and Cleveland OH.
FiberMedia’s services are tailored to our client’s specific needs. Whether the client is looking to take an existing colocation environment and wants FiberMedia to take care of physical environment or a client has a Software as a Service (SaaS) environment and wants FiberMedia to run the OS and database layer, FiberMedia has a tailored solution to meet those needs. FiberMedia’s offerings can be as simple and straightforward as colocation with metered power or as comprehensive as a fully managed offering. This flexibility and focus on client needs is what makes FiberMedia a partner you can rely upon.
How are your solutions different from other offerings available in the market?
There are a wide range of offerings in the market from purely hosted Infrastructure as a Service (IaaS) to companies that offer just colocation services. Along this spectrum, FiberMedia is ideally positioned to be able to offer the types of services and capabilities that allow our clients to maintain control of the applications and functions they deem necessary and offload those functions that aren’t a core competency.
Our hybrid solutions have the ability to provide a current colocation customer, whose equipment may be End Of Life (EoL), a migration path to the Cloud by providing an on ramp from our SSAE 16 certified data centers. At the hardware’s EoL, the client can create a virtual machine in the Cloud and seamlessly continue to have compute power. This can be done through a single contract and single bill and the services are tailored to our customer’s exacting requirements.
What enhancements, if any, will be made to FiberMedia’s offerings?
We continually seek ways to enhance and upgrade our existing platform, and it will remain at core of our offerings. FiberMedia will continue to add the data center facilities and capabilities that its clients need to succeed.
Self-Management - We currently offer support and management from our existing customer portal and are looking to introduce self-management capabilities such as the ability to increase or decrease committed bandwidth, vCPU, vRAM, and increase storage. Subscribers will also be able to add/remove additional VM's for bursting. We also plan to provide a catalog of standard VM images that clients will be able to access through the portal to implement for specific deployment needs. Finally, we plan to allow clients to create their own VM images, based on their specific requirements.
Enhanced Visibility - We are looking to provide clients with enhanced visibility into their environment via a “single pane of glass” viewing capability. This is a capability that many business customers are looking for and a capability we believe will benefit our clients. It will provide a bird’s eye view into both the client’s internal and external platforms - all done through a single tool.
In January of this year, we launched our Accelerate Partner Program, and since then the response has been great. Our partners will now have access to a turnkey solution that will allow them to brand our IaaS portal management, and we at FiberMedia will take care of the back end support, billing. This will allow our partners to seamlessly offer high quality Cloud services to their end users with the confidence of knowing that these services are backed by FiberMedia’s years of experience.
What trends are you seeing in Cloud services, data center colocation and hybrid solutions?
From the technology perspective, the sector has matured in many ways, and we’re seeing that instead of proprietary ways of working with a Cloud provider or platform, the industry is starting to open up and share. Whether OpenStack or CloudStack, there is a lot of activity in normalizing and using a common language on the platform side, which is allowing adoption of the Cloud to grow and extend rather than creating silos.
While we are still seeing growth on the Cloud and colocation side, we aren’t seeing a lot of providers taking advantage of hybrid capabilities. You see many Cloud providers allowing for cross connects, but they haven’t opened their doors. While that is a step in the right direction, it is not as effective as having your servers physically colocated in the same place as the Cloud. When it comes to the hybrid solutions, we want to push ourselves because we have the ability to offer the compelling solutions that benefit mid-sized to large enterprises. We are looking to put smaller nodes out in more locations.
On the colocation side, we are seeing that it is becoming somewhat commoditized. However, options such as our FlexColo service are continuing to gain traction in the market. We’re seeing more and more requests for metered power from customers, especially from those customers requiring less than 10 cabinets. This is fueling our growth.
We hear a lot about “Cloud”. From your perspective what is the Cloud and what are the benefits of a Cloud-based Solution?
Many service providers use the term “Cloud” and that has created a lot of confusion in the market as to what “Cloud” really is and what services are part of the Cloud. FiberMedia provides Infrastructure as a Service (IaaS). From our perspective, the Cloud is more of a utility type offering where you are turning up services through an online portal, and we view that as a “low touch” means of service. With that type of approach there is not a lot of hand holding, and perhaps not a lot of support provided to the client. FiberMedia provides our client base a trusted partner to work with and more of a consultative approach to design. We provide more hand holding from a solution perspective and our designs are backed by years of experience offering these types of solutions. Our clients confidently trust us to manage their environment, and that trust is not misplaced.
What are some important factors that should be considered when sourcing data center colocation, Cloud, and hybrid solutions?
Some things to consider include asking the following questions:
· Are you working with a partner that you can trust?
· Is the provider working with you towards a common goal?
· Are the people you are interacting with in the pre-sales process going to be the same ones you work with post sale?
· Can this provider adapt and evolve as your needs change, and do they offer the breadth of services you need to efficiently operate your environment?
· Can the provider offer you a custom tailored solution designed to support your needs?
At FiberMedia, we take the time to understand your needs and business challenges and design a custom tailored solution that will support your organization today and into the future. We don’t build out cages and power in advance and force fit our clients into a standard configuration. Because of this approach, we have the ability to build a custom hybrid environment dedicated to a client. The solution could encompass colocation, Cloud with dedicated hardware and virtual machines and dedicated storage components. Our approach is all about flexibility and customization that provides our clients with the infrastructure necessary to succeed.
Another key factor is data center location. FiberMedia’s data centers are strategically located throughout the New York Metropolitan and Cleveland areas making FiberMedia an attractive choice for businesses. From a backup perspective, our Cleveland data center is an ideal site to support our northeast footprint, and we have strong connectivity between our data centers to ensure a seamless transition should it be required.
What would you say to companies interested in the types of solutions FiberMedia offers but haven’t yet contacted FiberMedia?
FiberMedia has been the one-source infrastructure support solution for mid-sized and large enterprise clients in financial services, healthcare, media and IT for more than a decade. Our clients rely on our highly secure, redundant network of strategically located data centers offering geographic diversity and enhanced protection, each one designed to function as both a primary and disaster recovery site.
If you are looking for a trusted provider that will put your interests first as well as one that is capable of providing a full breadth of managed services, and if you are looking for a provider that is offering a solid data center environment backed by high quality service and support, then look no further FiberMedia is the data center provider for you.
Working with FiberMedia, you are not going to get “lost in the in the shuffle”. At FiberMedia, we take a consultative approach and work with you one-on-one to understand your needs and design a solution best suited to support your organization.
Taking a consultative approach, providing high quality service and support and earning your trust - that’s what FiberMedia is all about.
What’s next for FiberMedia?
Today FiberMedia is a regional company with great financial partners. We plan to build on this solid foundation to expand our physical footprint nationally and continue to grow our suite of services either organically or through partnerships with best-in-class providers. From colocation to managed services as well as on the Cloud side, you’ll see enhancements throughout 2013 and beyond. The team is focused on getting to the next level, and that growth is right at our door step.
Where can prospects learn more about FiberMedia?