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Deployment of 2.3GHz WiMAX 802.16e Wave 2 system in an Unique Urban Environment A New User Experience!. Andrew Meehan An initiative of Institute of Microelectronics and Wireless Systems National University of Ireland, Maynooth. System Introduction - what we have!.
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Deployment of 2.3GHz WiMAX 802.16e Wave 2 system in an Unique Urban Environment A New User Experience! Andrew Meehan An initiative of Institute of Microelectronics and Wireless Systems National University of Ireland, Maynooth
System Introduction - what we have! • 2 Base Station (WBS) network supporting 802.16e standard with beam-forming and MIMO ability with a front arc of 120⁰, at approx 20m height, operating a max Tx power of 1.3W. • System operates at 2.3GHz with 2 x 10MHz channel allocations. • Alcatel- Lucent supplied with an Operational and Management system (OMC) capable of handling 600,000 users. • Initial investment of 100 clients, between desktop and PCIMCA units, to be spread around campus. • System has full handover ability between the 2 Base stations • AAA (Authorisation, Authentication, Accounting) severer allowing full QoS setup. • Cisco Home Agent for internet and routing support.
Aims and expectations of the system • To provide broadband data to staff and students on campus and in the • town of Maynooth. • Expectation of up to 6Mb DL in a 1km radius. • Expectation of up to 1 Mb DL outside this ie up to 2km away. • To support research programmes in the areas of • Next Generation Networking schemes; • Use cases for free broadband data services; • Management of mobile and fixed services; • Cognitive and reconfigurable radio networks; • Wide area multimedia sensor networks. • To provide access to our online education tools such as Moodle • To share this unique public facility with other academic and company users.
Use cases • Student use: • Found that on-line gaming was an issue in particular for fast paced games such as Halo 3 due to the very long ping times on the system. • Streaming video such as YouTube had no issues. • DL speeds of up to 7Mb in some areas. • Mobile Handover: • Found that there was seamless transitions between the 2 base stations. • Continued to download data while passing the base stations. • This was consistent even while doing drive testing ( at the speed limit!) • Remote System Management – • Currently have a single base station in the Marine Institute, Oranmore, Co. Galway approx 250km distance from OMC.
Good things about the system! • Very good reliability of the overall system • System was easy to deploy - CPE’s were plug and play, base stations just plugged in and turned on! • Seamless handover between base stations at the 2 different frequencies. • Excellent connectivity in the coverage area. • Easy access to the data on the modems. • It works in a plane!
Issues encountered • Early version of the Rev e management software • Significant issues with the supply of modems • Lack of suitable PCIMCA or USB style devices for full mobile access. • Plenty of connectivity issues encountered – the term bleeding edge was never truer!!
Projects Involvements • Coverage Mapping of the North Campus • Use of long term data collection for research – 15 months of data at this time. • SMART Bay with the Marine Institute and Intel for broadband connectivity of offshore marine sensors – significant distance achieved!!.
Future plans • System software upgrade to latest rev giving us MIMO and beam forming abilites. • Newest generations of modems leading to increased connectivity. • Continue the long term data collection for research into why the parameters change so much. • Continue SMART Bay with the Marine Institute, look to get data from the remote sensors and improve the range. • Ask, nicely, for an extension to the current license from ComReg.
Thanks to • Dr Ronan Farrell of the IMWS. • ComReg – Kevin Kennedy • HEAnet – Eoin Kenny and David Wilson • NUIM Computer Center – Liam Burbridge, Patrick O’Regan, Brain Carolan, Dervilla O’Keefe. • Electronic Engineering – Yuriy Kuznetsov, John Maloco, Willie Flynn, Frank Devitt. • A large support team from Alcatel-Lucent
Campus Coverage Map Coverage Map form a single WBS transmitting at 1 Watt Have a single CPE at 2km receiving >1Mb DL
Example of files Sampled every second, max of 60 mins, closed then new file opened, repeat What the data looks like, 44 parameters collected on each poll