Skip to main content

WiMAX pare solutia castigatoare

La nivel mondial, serviciile WiFi si 3G au castigat teren in ultima vreme, dar interesul marilor companii se muta incet incet spre WiMAX. Cel mai mare producator de telefoane mobile din lume, Nokia, a anuntat ca va produce din 2008 telefoane mobile WiMAX. Unul dintre principalele dezavantaje ale WiMAX este ca nu exista pentru consumatori echipamente compatibile cu astfel de retele. Altfel, serviciile si ofertele teoretic ar putea fi mult mai ieftine decat ofertele companiilor de telefonie clasica, asa cum tehnologia VoIP a dat peste cap toti marii operatori de telefonie fixa clasica.La randul sau, Samsung, numarul trei mondial pe piata telefoanelor mobile, a declarat ca WiMAX este platforma pe care se va realiza oferta 4G (urmatorul pas dupa 3G si 3,5G care este serviciul HSDPA). Compania a prezentat o serie de produse proprii pentru retelele de comunicatii mobile despre care sustine ca permit atingerea de viteze de download de 100 Mbps pe telefon si servicii la punct fix cu viteze de 1 Gbps. Samsung a facut in Coreea de Sud cateva demonstratii in acest sens. Informatiile sunt confirmate relativ doar de NTT DoCoMo, operatorul dominant din Japonia, care vede serviciile 4G in piata prin 2010.Deschiderea de retele WiMAX este puternic sprijinita si de Uniunea Europeana, comisarul pentru media si telecomunicatii, Viviane Reading, afirmand recent ca utilizatorii finali trebuie sa aiba dreptul de a-si alege prin ce tehnologie sa le fie furnizate serviciile speciale. Retelele cu viteze de 100 Mbps permit furnizarea de servicii precum televiziune pe Internet (IPTV), asa cum in Romania ofera doar grupul Ines. Compania ofera insa serviciul in reteaua sa de fibra optica, iar calitatea semnalului se apropie de cea DVD.In Statele Unite, Intel si Motorola au investit anul trecut 900 de milioane de dolari in compania Clearwire, care si-a propus sa acopere America cu reteaua sa WiMAX. Operatorul de telefonie mobila Sprint Nextel a anuntat ca va colabora cu Samsung pentru realizarea unei retele WiMAX - 4G cu tehnologia dezvoltata de sud-coreeni.
Labels:

Popular posts from this blog

Test New ALFA-AWUS036H v.2 (1.000mW) VS ALFA-AWUS036H v.1 (500mW)

- Recently emerged the New ALFA-AWUS036H v.2 (1.000mW), and these are the tests. TEST WITH NETSTUMBLER 1) usb da 100mW chipset railink 2) usb da 200mW chipset railink rt73 3) intel 2200 b/g con connettore esterno rp-sma 4) Alfa-AWUS036H 500mW 5) New Alfa-AWUS036H V2 da 1.000mW
Post a Comment
Read more

Creating A Cheap Bluetooth Sniffer

Many papers and posts on internet forums have commented on the success of turning normal everyday bluetooth USB dongles ($10), into their more powerful counterparts that allow the capturing of packets from the airwaves. These more powerful USB dongles are usually sold at a much higher price ($10,000) together with the software to drive and control these devices. The problems associated with BlueTooth sniffing You cant simply just purchase the dongle with the alternate firmware. There is next to no real opensource packet capture program for the bluetooth protocol. Hardware & Limitations Chipsets: Whats the difference? The chipset of the Bluetooth USB Dongles are very important. Broadcom chipsets are cheap hardware and are deemed unsuitable devices for this paper. But unfortunalty nowadays, every manufacturer seems to prefer putting these chips in their products compared to the more reliable Cambridge Silicon Radio (CSR) chipset. If your lucky enough to find a dongle with a CSR chips...
Post a Comment
Read more

ALFA-­AWUS036H & ALFA-­AWUS050NH INSTALLING/UPDATING DRIVERS RTL8187, r8187, RT2800usb on UBUNTU

NOTE: For surfing Internet with ALFA-AWUS050NH on Ubuntu Jaunty with rt2870sta driver, you must use the Kernel "2.6.28-11-generic #42-Ubuntu", without change or updates the drivers modules. NOTE: The tutorial is not related to Ubuntu karmic. Driver RTL8187/Stacks-­mac80211 (ref. ALFA-­AWUS036h) ­- These drivers, for surfing Internet, are more stable than r8187, and fully compatible with Network-Manager 0.7 installed by default on Ubuntu 9.04. Network-Manager 0.7 installed by default on Ubuntu 9.04. ­- Supports all encryption without problems. (OPEN, WEP and WPA/WPA2) ­- With Compat-Wireless, the "injection" working, but for support “Fragmentation attack” (opt. -5) you need to install one patch. - The RX sensitivity and packets injection is less, related to drivers r8187. Driver r8187/Stacks-ieee80211 (ref. ALFA-AWUS036h) - This driver is recommended for use with the Suite of Aircrack-ng, but not particularly suitable for Internet connections, as less stable and disc...
Post a Comment
Read more