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Wireless

* Cell Tower Connectivity
* Educational
* E-Governance - Citizen Services
* Industrial
* Video Surveillance
* VoIP Fixed Location Telephone Service
* VSAT Horizontal Connectivity
* Wireless ISP Hot Zone
* Wireless T1

Cell Tower Connectivity:

A typical GSM/CDMA/3G network contains a Base Station Subsystem consisting of Base Station Controller (BSC) and a Base Transceiver Station (BTS). The Base Station Controller (BSC) is responsible for handling traffic between a cellular phone and the Mobile services Switching Center (MSC). This is the last stage of the network just before the final consumer. Therefore, a Telco can greatly expand its network to reach more customers at a lower cost by using a wireless link for this part.

A wireless component usually comes in where there is no wired line feasibility between the BSC and BTS due to physical or other reasons. However, even when this is not the case, replacing the conventional T1/E1 line with wireless eliminates an annually recurring cost. Wireless can also complement an existing leased line as a backup link or as a quick upgrade of the link to provide more bandwidth. There are two ways it can do this, either by using a point-to-point link or a point-to-multipoint link depending on whether bandwidth or reach is the main criteria.


Diagram of a typical Cellular Network

 

Point-to-Point Connectivity between BSC and BTS
For high bandwidth on critical BSC to BTS links, backhauls can be used together with a pair of E1/T1-to-Ethernet Converters. The backhaul link replaces an existing leased E1/T1 line.

 

Point-to-point connectivity between the BSC and BTS

 

smartBridges offers two high performance backhauls that are ideally suited for carrying voice: the airHaul Nexus PRO TOTAL (25 Mbps with a built-in multi-band antenna) and the airHaul2 Nexus PRO(a dual radio model which delivers 45 Mbps in a link aggregation mode). The specific airHaul model can be selected based on the throughput requirement for the link between the BTS and BSC.

Point-to-Multipoint Connectivity between BSC and BTS

In a cellular network, a single BSC usually manages three BTS. When the bandwidth requirement for each BTS is within the limit of 6 Mbps, the Telco can establish a point-to-multipoint connectivity for connecting wirelessly to these BTS. In this scenario, the smartBridges access point, airport , is used at the BSC end and the client device , air Client , is used at the BTS end.

 

Point-to-multipoint connectivity between the BSC and multiple BTS

 

Educational:

Colleges and universities see providing wireless broadband Internet access as a necessity given the increasing use of the Internet for teaching and research. Providing high speed connectivity gives a key competitive advantage in the crowded education industry, where students base their choices on how well connected the schools are to the Information Age.

A Wi-Fi Wide Area Network (WAN) is the most effective way for schools to provide broadband access to staff and students in classrooms, residences, labs, offices, cafeterias, and even in parks, open spaces, and recreational areas- without running the costs of or damaging existing infrastructure by laying cables.

Campus-connectivity

 

In developing countries, video conferencing technology allows qualified teachers based in towns or cities to teach several rural classrooms simultaneously and thereby bring quality education to the village level. As a cost effective and easily deployed-and-managed communication solution, wireless networks are easily adapted for such educational purposes.

 

Video conferencing technology combined with a wireless network allows teachers
to teach at several village schools, virtually

 

The Byrraju Foundation, a well known Indian non-profit organization set up by Mr. B. Ramalinga Raju, Chairman of Satyam Computer Services Ltd, successfully completed a project that connected several rural village schools for E-Learning. In a project that attracted the attention and support of the President of India, His Excellency, Dr. A.P.J. Abdul Kalam, adults and schoolchildren in these remote villages are now able to access lessons taught in far away cities.

In another deployment that was featured on BBC, several remote Nepalese villages in the Himalayan mountains used smartBridges radios in a wireless network that serves as their sole communications means to each other and the outside world. With this network, a teacher based in one village schoolroom can teach classes in the other villages at the same time, making the best use of limited resources.

E-Governance – Citizen Services:

The digital divide between the digital haves and have-nots is nowhere wider than between the rural and urban populations. Chronic underinvestment leading to poor infrastructure in remote and rural areas is one major reason for this. In order to bridge this digital divide and provide the connectivity needed for economic growth, governments as well as non-governmental organizations are stepping to fill this void by using wireless technologies that allow them to leapfrog into the information age. Mobile phones instead of fixed ones and wireless networks in place of expensive cable and ADSL allow rapid connectivity without the need to wait for infrastructure to catch up.

The Byrraju Foundation, a well known Indian non-profit organization set up by Mr. B. Ramalinga Raju, Chairman of Satyam Computer Services Ltd, successfully completed a project that connected several rural villages for E-Governance services. In a project that attracted the attention and support of the President of India, His Excellency, Dr. A.P.J. Abdul Kalam, the network will be used for education, providing citizen services as well as medical care

In another deployment that was featured on BBC, several remote Nepalese villages in the Himalayan mountains used smartBridges radios in a wireless network that serves as their sole communications means to each other and the outside world. With this network, villagers at the local clinic will be able to communicate with the nearest hospital via VoIP and video conferencing

Industrial – Power Grid :

Whether it is for forestry, oil & gas, transportation or utilities, for various industries, wireless networks using smartBridges radios can aid in communication, tracking, monitoring and maintenance of various processes and systems. Eliminate the recurring costs of leasing lines or the truck roll involved in repairing fixed wires. In typical SCADA (Supervisory Control And Data Acquisition) and telemetry applications, wireless networks are ideal for installation at remote sites and give the flexibility and mobility to move points in the network according to changing requirements.

In a power grid network, CPEs installed at each transformer transmits information gathered from the remote telemetry units (RTU) that monitor various controls to access points installed at the substations. From there, a wireless backhaul or even a wired backbone can relay the information to a central control room hundreds of miles away. Such a network can be installed quickly, and at a fraction of the cost it would have taken to lay cables.

 

Wireless Data Access for Telemetry and Process Control


smartBridges Nexus radios are being used in an experimental research farm in Australia to gather and send information collected from various field RTUs to the central office for analysis

Video Surveillance:

As the demand for wireless security surveillance using web (IP) cameras continues to expand, service providers and systems integrators will increasingly be asked to provide cost effective, reliable solutions that support a vast array of operating conditions and environments. Addressing a reliable wireless web camera solution can be a fairly daunting task.

When it comes to web camera systems, bandwidth is a key concern as most tend to be very bandwidth-intensive. And some web cameras will not allow you to throttle back the bandwidth needs of the camera. Therefore, the wireless network needs to have sufficient throughput, bandwidth management capability and a Quality of Service (QoS) feature to ensure that image quality is adequate for surveillance while not compromising the traffic of other data.

Video Surveillance Center

 

A digital web surveillance camera combined with a wireless radio is a mobile,
flexible security system that can be quickly deployed anywhere

 

For surveillance in remote areas, power requirements can pose a problem. A surveillance video camera and wireless CPE combination, which can be used together with solar panels, batteries or both, is suitable for such deployments. The Nexus series from smartBridges has one of the lowest power requirements among wireless devices and is ruggedly designed for outdoor deployments. It can be combined with a WAN/LAN or satellite backbone.

smartBridges wireless radios require much less power than other radios and
can work well on power from solar panels or batteries

VoIP Fixed Location Telephone Service:

VoIP gateways have become the world's de facto standard in building voice and video over IP products and services. These gateways provide real-time voice and video IP communications. Many large SMEs are already looking to VoIP service providers for their needs. So are many developing countries that see VoIP as a way to provide services to remote areas that are currently not reachable through traditional means or are under-served with terrestrial infrastructure.

The triple play capabilities of the Nexus radios make them suitable for
service providers to offer VoIP service to their customers

 

Today, hundreds of thousands of people around the world use commercially deployed IP-centric products and services for next generation networks. However, the focus now is not just getting the VoIP service running but in delivering secure and high quality services.

The versatility and high performance of the Nexus platform from smartBridges opens up enormous potential for wireless VoIP deployment over Wide Area Networks (WAN). The Intelligent wireless Nexus platform can support multiple VoIP connections for last mile connectivity. VoIP compatibility of the Nexus platform ensures the quick adoption and success of these applications for service providers, governments and enterprises.

Benefits of Voice in the Air

Wireless VoIP deployment poses clear benefits including:

* Low marginal costs as compared to installing a standard PSTN network.
* Rides on an existing network so there is no need for a new PSTN network.
* Does not include too many network components.
* Voice over Wi-Fi produces minimum jitter with bare minimum latency as Wi-Fi uses full duplex channel with up to 15 Mbps and above of throughput.

VSAT Horizontal Connectivity:

Wireless and satellite communications can complement each other to provide a cost effective end-to-end solution. Having multiple VSAT terminals is expensive. Using wireless backhauls, access points and client devices, can reduce the costs for VSAT operators and service providers by extending their range of operation and by offering more value-added services.

In a typical deployment, a VSAT serves as a backbone and connects to a wireless access pointto create a Wireless LAN. The access point combined with a sector or omni antenna provides point-to-multipoint coverage in a Line of Sight (LoS) or Near Line of Sight (NrLoS) condition to multiple customers equipped with client devices and directional antennas. Customers may range from large businesses to individual residents.

 


An ISP/Internet Café buying VSAT satellite internet connection can share the cost earn revenue by providing 24/7 Internet service to neighboring residents and businesses with wireless access points

 

To extend the WLAN coverage even further, long range backhaulscan be used. The VSAT connects to backhauls which form point-to-point links to connect isolated businesses, villages or towns. At the remote end, the backhaul will be connected to an access point which will serve the customers as already described.


A wireless backhaul can extend the reach of an ISP to neighbouring businesses, villages and towns,
by as much as 40 km if using the dual radio smartBridges airHaul2 nexus PRO

 

Once terrestrial optic fibre becomes available, the VSAT becomes redundant and the entire network may be seamlessly transitioned to a cheaper terrestrial Internet backbone connection.

Wireless ISP Hot Zone & Residential Internet Access:

Within any given metropolitan, suburban or rural area, broadband wireless access is by far the easiest and most cost-effective way to realize your high performance network. Whether you're creating a network from scratch, or need to augment or replace your existing wire line links, broadband wireless access is the most reliable and cost-effective, high-speed data networking alternative you should know more about. Put simply, wireless is the lowest cost and most easily implemented solution today for the last mile.

Better Than Wired Networks
Broadband wireless connectivity gives you wire line performance without wire line costs and wire line restrictions. Operating in the 2.4 GHz or 5.x GHz license-free spectrum means no recurring license fees. And because you own your infrastructure, there are no monthly line costs and no dependency on telephone companies. Broadband wireless means freedom for your ISP business.

Simplicity and Flexibility
Deploy faster, more easily and less expensively than wired line links and modify quickly to meet your changing connectivity needs. A broadband wireless network gives you the flexibility to painlessly add or eliminate locations or secure additional bandwidth. While our GUI web-based solutions give you the simplicity to manage your network from wherever you are.

Speed and Reach
Throughput several times faster than wired line alternatives and the ability to deploy virtually anywhere- urban, suburban, and rural locations.

Reliability and Security
Wireless networks are reliable with high availability and consistent throughput over a long distance. Barriers to physical tapping and Wi-Fi Protected Access 2 (WPA2- IEEE802.11i) with 128 bit AES encryption give considerable inherent security in wireless networks.

Economy and Pricing
Connecting LANs together using wireless links is significantly less expensive than upgrading existing wires or laying new ones. Wireless infrastructure needs less maintenance than wire line infrastructure, cutting down your overheads.

smartBridges helps service providers around the world deploy wireless networks, quickly, efficiently and affordably. Our solutions provide tremendous cost savings, easy management, and enable strong customer retention and loyalty.

A wireless network using entirely smartBridges radios provides
connectivity to residents in St. Maarten

Wireless T1/E1 Leased Lines:

Wireless is easily the lowest cost and most easily implemented solution today for the increasing backhaul demands for a Telco's network. The growing demands for bandwidth can be met by providing connectivity between various network components using high performance wireless radios.

Wireless can complement an existing leased line as a backup link or as a quick upgrade of the link to provide more bandwidth. Replacing a wired line with wireless also eliminates an annually recurring cost. A wireless component might also be the only solution where there is no wired line feasibility due to physical or other reasons.

Advantages of a Wireless Solution for Telcos

Telcos, carriers and other service providers can realize many benefits from adopting a wireless component into their networks. Some of the advantages are listed below:

1. Immediate deployment with subsequent immediate revenue realization
2. First mover advantage enabled by quick deployment
3. Ease of deployment in challenging terrains
4. Disaster management
5. Mobility: ease of redeployment of existing equipment
6. Scalable
7. Significant Capital Expenditure (CAPEX) and Operating Expenditure (OPEX) savings per year
8. Reliability

The best way is to deploy the smartBridges Nexus Platform based solutions – the backhaul and last mile alternative that gives you the most bandwidth for your investment.

 

The smartBridges Nexus wireless radios, the airHaul, airPoint and airClient, can complement
or replace expensive leased lines connecting the various parts of a typical cellular network

 

 
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