1- VSAT Connectivity Supports Voice , Data , and Video as : 1.1 Point-to-Point to provide a dedicated link and dedicated bandwidth bet. two locations. Ideal for static environments, where communication requirements are clearly established . 1.2 Meshed Network that allows all connected sites to communicate directly with each other, using a shared pool of bandwidth - optimizing performance and cost effectiveness. 1.3 Multi-Point IP Based Network providing a partial mesh or star topology where each remote site can communicate with the others via the central hub , bandwidth is shared . In addition IPoVSAT addresses and transmits the packets in an optimum manner assuring quality of service.

VSAT cont. • Market Status in Egypt : liberalised Market ,(Two service Providers ) • Hub Stations are located at Telecom Egypt Maadi Earth Station. • No . of stations 156 . • Users : Private Companies , Petroleum ,Telecom Companies ,

2- WIFI / WIMAX Technologies • Definitions : 1.1 WIFI , Wireless Fidelity generic standard of IEEE 802.11 Network 1.2 WIMAX ,Worldwide Interoperability for Microwave Access generic standard of IEEE 802.16 as Broadband Wireless Access.

WIFI / WIMAX • Used as Access to areas that are too : - remote , difficult , expensive with traditional wired infrastructures ( Copper or Optical Cables ). • Key deployment types are : - Backhaul - Last – mile - Large - area coverage ( hot zones )

WIFI • Generic standard of IEEE 802.11 Network 802.11a , 802.11b , 802.11g ( 54 M b/s , 11 Mb/s , 54 Mb/s ) ( 5 GHz , 2.4 GHz , 2.4 GHz ) ( OFDM , DSSS , OFDM ) OFDM : Orthogonal Frequency Division Multiplexing DSSS : Direct Sequence Spread Spectrum

WIFI • WIFI , revolutionized the market for unlicensed Client – Access radios in a wide variety of applications. • Facing the following challenges : - Non- standard wireless inter-access point communication .) - Providing QoS ,deployment is open to anyone , unlicensed band . ( to enhance Mesh Network topology (802.11s 2007 , 802.11e -2006 )

WIFI cont. • Expensive Backhaul costs connection between AP or to the Core network. - Limited Services ( QoS issues )

WIMAX • 1. Provides a fast , cost – effective , easy to deploy with built in QoS. • 2. Licensed 2.5 GHz , 3.5 GHz and license – exempt 5.8 GHz band • 3. Standard uses OFDMA , similar to OFDM in addition to dividing the carriers , into multiple subcarriers, grouping multiple subcarriers into subchannels .

WIMAX 4. Up to 288 Mb/s throughput / cell 5. Up to 72 Mb/s to end - user 6. Up to 50 km P2MP range 7. provide services such as VOICE , INTERNET , DATA and Video

WIMAX MCIT has finalized the first phase of the WIMAX Field Trial which is up and running at the Smart Village covering 5 Buildings to offer high speed Internet Access . Other applications and services such as VoIP , Video Conferencing and Video streaming are currently being tested across those buildings . Phase 2 of the trial is completed in which the MCIT Branch in Mohandeseen has been connected and Under test .

MCIT WiMAX Field Trial

for further details regarding the WIMAX field tyrial contact MCIT Team headed by Eng. Ismail Elghetany ighetany@mcit.gov.eg Eng. Baher Esmat besmat@mcit.gov.eg

Thanks ezakaria@telecomegypt.com.eg

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