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)