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Metropolitan WiFi Network

• Client / Company: Municipality of Cajamarca

• Country: Perú

• Website: http://www.municaj.gob.pe/

• Solution: Wireless Platform using Wireless Base Stations offering Internet Access to mobile users and extending LANs by interconnecting different City Hall Headquarters in Cajamarca City.

The Municipality of Cajamarca and the Project "Multi-Access System Service", expand the use of the Information Technology creating more efficient ways to enhance citizen services. For achieving this goal, the Manager’s office of IT and Statistics elaborated Web and Telephony Applications for the complete access of the citizens to their services.
--Cajamarca Network Diagram--
--Cajamarca Network Diagram--
W5G-25G
5GHz 25dBi
Parabolic Grid Antenna
ISPAIR Base Station
Outdoor Radio
Access Point with
four High Power
MB-ROMB
Multi-band Backhaul
/AP Dual Radio 2 port radio slot AP/Bridge
Geographical Description

Place Name: Cajamarca:

Cajamarca is located in the northern highlands of Peru. Cajamarca is bordered to the north by Ecuador, to the south by La Libertad, to the east by Amazonas and to the west by Piura and Lambayeque. The city of Cajamarca is 2,750 m above sea level, and located about 856 Km north of Lima, capital of Peru.



Country:

Perú

Coordinates:

Latitude 7° 10′ S
Longitude 78° 31′ W

Elevation:

2.750 m. ASL

Population:

155.000 inhabitants
Density 40.79 Km² (2005) 		 
Map of Cajamarca


Project Description

To fulfill the objectives Netkrom deployed seven Wireless Base Stations using the MultiBand Dual Radio properly distributed all over the city of Cajamarca giving Internet Access and interconnecting all council offices offering multiple services in a decentralized way.

The seven Netkrom Wireless Base Stations used in Cajamarca city have three different subnets, segmenting the Broadcast Domain generated by IP Data Traffic of:

  • LANs in council offices.

  • WLANs working at 5.8GHz (operating as the Backbone of the Wireless Platform).

  • WLAN of mobile users (laptops, Pocket PC, etc.) that would like to log in to the Wireless Internet Service (HotSpot) at 2.4GHz offered by the Municipality of Cajamarca.


    According to Network Diagram, Wireless Base Stations connect to each other through the Backbone at 5.8GHz supporting the TCP/IP traffic generated by the subnet segments above mentioned.
    		•   

    The ISP-BS500 offers these services using dynamic routing applications RIP, DHCP, NAT, Quality of Service (QoS) and security WPA2.

                           Geographic Distribution of the seven Wireless Base Stations in Cajamarca City.


    Wireless Equipment used in each Wireless Base Station

  • Model: ISP-BS500

    • ISPAIR Tri-Band 2.4/4.9/5GHz 802.11a/b/g Base Station AP with Backhaul 4-RF Port Radio 400mW.
    Wireless Router equipment with four high power wireless ports - 802.11a/b/g standard-compliant three of them connected to 120 degree sector panel antennas focusing the 2.4 GHz wireless signal on places where HotSpots are needed; and the fourth port connected to a directive antenna for a 5.8 Ghz Point-to-Point Wireless link to connect this Base Station to a remote one.

  • Model: W5G-25G

    • 5.8GHz 25dBi Parabolic Grid Antenna.
    5.8GHz Directive Antenna used for BACKBONE for interconnecting each Wireless Base Station.

  • Model: W24-16SP120

    • 2.3 - 2.7 GHz 16dBi 120° Sector Panel Antenna VPOL
    120 degree Sector Panel Antenna used in HotSpots focused on strategic places all around Cajamarca city.
    		 

    Benefits:

     Networking
    • City Hall Headquarters wirelessly interconnected.- All employees from each City Hall Headquarter take advantage of the connectivity between their PCs, having a better management of the information and network resources.

    • High data rate transmission capability.- Before the Wireless Solution was implemented some headquarters were interconnected using VPN’s through the local ISP with data rates from 256 Kbps to 512 Kbps. When the Wireless Solution was finished the real throughput achieved was about 10 to 15 Mbps in different locations.
     Wireless LAN
    • Wireless Platform with Outstanding Performance.- This solution permits mobile users (laptops) to have Internet Access and unify the City Hall Department LAN using the most advanced security features (Encryption, Authentication and Segmentation of Networks) assigning a specific Bandwidth to the connected Networks (QoS).

    • User Mobility.- The WLAN has been deployed in a way that an end user can have the capacity of moving from one place to another having a permanent Internet Access not taking notice of the change from one Wireless Base Station to another.
     Services
    • Data, Voice and Video using TCP/IP protocol.- Every City Hall Headquarter is able to use a zero-cost Voice over IP service, and Video over IP to improve the efficiency of its personnel using videoconference.

    • On-line Multiple Services.- This Governmental organization will be able to offer on-line services for their citizens, such as tax payment, checking records, legal actions and even getting access to the INTRANET from the comfort of their homes with a previous permission to do so.
     Short-Term Benefits
    • Upgradable to Superior Technologies in Peru.- The Wireless Base Stations are upgradable to WiMAX or can be used on the Public-Safety Band of 4.9GHz.

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