Information network backbone and communications in Indonesia

Information network backbone and communications in Indonesia practically requires infrastructure backbone which is reliable, cheap and can be built according to requirement of support from ICT would for prosperity ( e-prosperity). E-inclusion involving outlying public to access Internet must be supported by election of correct technology. Wi-Fi is one of its(the choice. At this handing out will be studied about Wi-Fi, its(the comparison is with a few other information access technology, problem faced is including network security and interference, things which can be done to increase utility Wi-Fi, audit to exploiting of Wi-Fi which there have, and possibility that its(the development is in Indonesia especially as supporting facilities for infrastuktur information, communications and education in Indonesia.

1. WIRELESS FIDELITY ( Wi-Fi)

Wireless LAN gives level of flexibility and portability that is much higher is compared to ordinary LAN. WLAN mengkoneksikan other computer and component having wireless adapter into network through Access Point ( AP). Configuration WLAN in general is differentiated to become 2 kinds, that is infrastructure and ad hoc. At infrastructure type, AP incircuit direct to cable network. While at quad type hoc, AP incircuit to other AP passed mechanism of quad hoc. AP usually has coverage area to 100 metre, usual called as cell or range.

Wireless Fidelity ( Wi-Fi) be name given by Wi-Fi Alliance description of product wireless local area network to ( WLAN) which based on standard Institute of Electrical and Electronics Engineers ( IEEE) 80211. Kinds of variants 80211 has been released by visible IEEE at Tabel 1. Type that is most popular is applied in Indonesia and world is standard 80211b ( indoor) and 80211g ( outdoor). Both having compatibility from the angle of equipments user, so that user 80211b earns easily move to network 80211g when beyond room.

2. COMPARISON WITH OTHER TECHNOLOGY

Technology wireless long distance, hardly potency to be applied at area pedesaan/pedalaman. Main characteristic from this type technology is expense of its(the low development, amenity pambangunan, and its(the ability to reach wide geographical region. As access technology expected in the future, Wi-Fi must can give excellence signifikan compared to technology which there have now.

21. Comparison with WiMAX

Compared To Wi-Fi, WiMAX-yang has been diujicobakan in FTUI Februari 2006-adalah a real expensive technology in development initially. From the angle of its(the equipment industry, WiMAX also have been far lag compared to Wi-Fi. WiMAX designed to have standard which more pre-eminent and more completely is compared to Wi-Fi[2]. But, whereas WiMAX still in standardization level, equipments Wi-Fi has disseminated wide among world public, so that the price also downwards drastically. Now have been many companies, trying to university and hacker digs ability of deeper Wi-Fi again. And is not impossible thing if ability and popularity Wi-Fi would continuously increase during which will come. WiMAX possibly will very compatible applied for rural areas which its(the polpulation is low and distance between its(the populations is also far, while Wi-Fi would continuously grow and applicable to various network types like LAN, Neighbourhood Area Network ( NAN) and MAN [ 2].

22. Comparison with 3G

Compared to 3G, giving more Wi-Fi is opportunity compared to 3G because its(the cheap cost. 3G from initially just had required a real big cost for frequency spectrum license problem, while Wi-Fi using not to release cost at all for the thing. Peripheral 3G at side user which is the existing has started circulates also the price expensive, while communication means having adapter WiFi built indium have been many circulating and the price also increasingly downwards. From the angle of speed of its(the access, 3G promises will give speed of data until 2 Mbps, practically have never reached the speed one hundred %, because having to shares with other user [ 3]. usual maximum Throughput is given is around 100 Kbps.

3. FITUR SECURITY AND SAFETY Wi-fi

Main problem of which must be paid attention when choosing a form of information network is its(the security and safety facet. Mainstay a network hardly determined by fitur adequate security and safety. Standard Wi-Fi x'self has owned fitur elementary security and safety that is Service Set ID ( SSID) and Wired Equivalent Protocol ( WEP) [ 1].

31. Fitur elementary security and safety

3.1.1. Service Id Set ( SSID)

SSID is a string applied to define common roaming domain between a group of AP. SSID which is different at a group of AP enables overlapping in network wireless. SSID also can be conceived of password base. where an user will not can access network without his(its. Weakness from this fitur is that AP sends in broadcast its(the SSID the several per second so that equipment of analyst 80211 applicable to read it. That someone cannot step into network incidentally mere, hence SSID must be changed from its(the default value [ 1].

3.1.2. Wired Equivalent Protocol ( WEP)

To lessen security and safety problem, 80211b defines method autentikasi and encryption named by WEP. Encryption WEP based on algorithm RC4, what applies lock 40 bits and initializing vector ( IV) 24 random bits [ 1].

32. addition of Security and safety