A comparison of wi-fi and wimax with case studies - Florida State ...
A comparison of wi-fi and wimax with case studies - Florida State ...
A comparison of wi-fi and wimax with case studies - Florida State ...
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auxiliary <strong>of</strong> extending the ADSL to end users in short range. Unless there is a unique application<br />
that only WiFly can do; other<strong>wi</strong>se keep seeking new service to increase users is still no help.<br />
ADSL <strong>and</strong> WiFly are like roads <strong>and</strong> bridges, but if WISP tries to use bridges to replace roads;<br />
then there is no future for WiFly. Taipei’s city government <strong>and</strong> Q-ware now are trying to use<br />
new VoIP service (Taipei easy call) <strong>and</strong> WiFly cube to attract more users. [76] – [78][85]<br />
However the fundamental problem is why WiFly. There are other choices for indoor <strong>wi</strong>reless<br />
internet service, such as Hinet-WLAN <strong>and</strong> 3G <strong>wi</strong>reless.<br />
It is like selling a game station <strong>wi</strong>thout games <strong>and</strong> the price is also way too high. For<br />
temporary users, $3.20 for one day access is too expensive; not to mention carrying the NB <strong>and</strong><br />
looking for signal. WiFly’s unique feature is its ubiquitous connection, but if the feature cannot<br />
be used stably <strong>and</strong> conveniently; then it is still useless.<br />
5.2.4. Conclusion<br />
WiFly tries to provide make people’s lives more convenient. However, it still has<br />
fundamental problems to be conquered. How to provide end users more stable connection <strong>and</strong><br />
higher speed should be the current mission <strong>of</strong> WiFly. And the customers have to <strong>fi</strong>nd out<br />
whether they need WiFly or not. Taiwanese network market is already saturated <strong>and</strong> has many<br />
competitors, so if WiFly wants to take the market share it <strong>wi</strong>ll be not easy. Since Wi-Fi has some<br />
limitations <strong>and</strong> the original design is for home use; thus it is dif<strong>fi</strong>cult to use as the last mile <strong>of</strong> the<br />
network <strong>and</strong> the city-<strong>wi</strong>de coverage. Since the mother company <strong>of</strong> WiFly, FAREASTONE, has<br />
gotten the operation license <strong>of</strong> WiMax; the next step <strong>of</strong> WiFly should be the WiMax<br />
infrastructure installation. By adopting WiMax, WiFly may be able to have much better<br />
performance <strong>and</strong> show its real value.<br />
5.3. Wibro in South Korea<br />
5.3.1. Introduction<br />
WiBro (Wireless Broadb<strong>and</strong> Access Service) is a WBA technology. It is a st<strong>and</strong>ard extended<br />
from 802.16-2004 <strong>and</strong> 802.16 2005 <strong>and</strong> uses many techniques the same <strong>wi</strong>th them. Figure 5-<br />
14[79]. It has better coverage <strong>and</strong> stronger mobility than WLAN <strong>and</strong> higher data rate than 3G.<br />
However, 3G has better coverage than WiBro <strong>and</strong> WLAN has higher data rate than 3G.<br />
Therefore WiBro’s position is just in the middle. It can <strong>fi</strong>x their weaknesses, but cannot replace<br />
them. This st<strong>and</strong>ard was developed by KT (Korean Telecoms Industry) <strong>and</strong> st<strong>and</strong>ardized by TTA<br />
(Telecommunications Technology Association) later on.<br />
The manufacturers who are contracted to produce WiBro devices are Samsung, LG,<br />
POSDATA <strong>and</strong> so on. For extending transmission range <strong>and</strong> decreasing dead spot, the TDD<br />
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