PRESENTATION  -­‐  PTC  18th  January,  2015  

 

Anisi Penitusi  

Content:  � Country  Profile  � TTC  Core  Business  Service  � Network  Overview  

� Numbering  Plan  � Demographics  �  Leased  Satellite  Bandwidth  

� Key  Challenges  � Current  and  Future  Plans    

�  Land  Area  �  26  sq  Km  

�  Population  �  10,837  

�  GDP  �  US$3,600  

�  Land  Area  �  26  sq  Km  

�  Ethnic  Group  �  Polynesia    

TTC  Core  Business  Services  �  Fixed  Telephones  (POTS)  �  Fax  � PABX  –  Corporate  customers  �  Internet  (xDSL  &  Wifi,  Leased)  � TV  (Sky  Pacific)  � Mobile  -­‐  GSM  � Wireless  (HF,  Wifi,  VHF  etc)  � Other  Services  (Maritime,  Civil  Aviation  etc..)  � Emergency  services  (Police,  Fire,  Hospital,  and  Satphones)  

TTC  Network  Overview  

POT’s Customers

Internet customers

mobile customers

Copper Access

KEYMILE MSAN

Core Router

Mobile Access

SOFTSWITCH

PSTN

INTERNET

MOBILE

SPEEDCAST

Outer Islands Customers

VSAT ACCESSS

GILAT HUB DOMESTIC VSAT

BSC

Wireless (WIFI)

Copper (ADSL & Lease line)

Numbering  Plan  Islands   Numbering  Plan  

Funafuti   20  xxx          -­‐  21  xxx  

Niulakita   22  xxx  

Nui     23  xxx  

Nukufetau   24  xxx  

Nukulaelae   25  xxx  

Nanumea   26  xxx  

Nanumaga   27  xxx  

Niutao   28  xxx  

Vaitupu   29  xxx  

GSM  Mobile   90  xxxx      -­‐  91  xxxx  

Network  Demographics  Islands    

Total  No.  Houses  

Houses  with  Ph.  

Houses  no  Ph.  

Total  Ph.  Lines  

Internet  

         Fixed  Lines  

Funafuti   789   xDSL  290  

Nanumea   52   3  

Nanumaga   64   3  

Niutao   52   3  

Nui   52   3  

Nukufetau   64   3  

Vaitupu   100   3  

Nukulaelae   40   3  

Niulakita   4   1  

1217   312  

 GSM  

Funafuti    3967  

Outer  Is  

Leased  Satellite  Bandwidth  � NSS  9    

�  16  Mbps    (Internet)    �  3Mhz  (Outer  Islands  VSAT  Network)    

�  INTELSAT  �  2  Mhz  (Used  for  voice  and  internet)  

Key  Challenges  v High  Operation  Cost  –  Sat  bandwidth  etc..    v Primitive  Products  and  limited  features  v Core  Network  Equipments  

v  Obsolete  v  Softswitch  v  Central  Billing  System  v  GSM  Mobile  

v Denial  of  Service  Attack  v Cables  performance  v Manpower  Resources    

Current  and  Future  Plans  v  Improving  and  Expansion  of  Wifi  Coverage  v  Replacing  the  Core  Softswitch  v  New  Project  (Bridging  the  Digital  Divide)  1st  Quarter  

2015  v  New  Technology  Trial  on  NCTCP  Technology    

v  Network  Coded  TCP  –  Flexi  digital  coding  techniques  to  improve  reliability  

 

NCTCP  -­‐  Fundamental  

●  Correct  erasures  (packet  loss)  in  digital  transmissions  ●  Simplifies  reliability  only  enough  packets  must  be  

collected,  instead  of  all  unique  original  packets.  

Channel with erasures 1

2 3 4

1 2 3 4

Encoding Decoding

Original data

Decoded data

Coded data

NCTCP  (Network  Coded  Transport  Control  Protocol)