Disadvantages Of WiMAX Technology
| | I will tell you something about the disadvantages of WiMAX technology. The most common misconception is that WiMAX can offer 70 Mbps in range of 70 miles (113 kilometers) with moving stations. In practice the situation is a quite different. It is valid only in ideal circumstances with only one recipient. |
Within line-of-site (optical visibility), you could have the speed of 10 Mbps at 10 kilometers. In the urban environment (without the optical visibility) users can have 10 Mbps at 2 kilometers. If users are moving, the speed can drop significantly.
Bandwidth is shared among users in a given radio sector. If there are many users in one sector, they will have lower speed. Users could have 2, 4, 6, 8, or 10 Mbps of the shared bandwidth.
More expensive installation and operational cost is still the most significant disadvantage of WiMAX. So let’s put together on a paper all known WiMAX advantages and disadvantages:
Advantages:
1) Single station can serve hundreds of users.
2) Much faster deployment of new users compared to wired networks.
3) Speed of 10 Mbps at 10 kilometers within line-of-site.
4) It is standardized, and the same frequency equipment should work together. Disadvantages:
1) Line of sight is needed for more distant connections.
2) Bad weather conditions such as rain could interrupt the signal.
3) Other wireless equipment could cause interference.
4) Multiplied frequencies are used.
5) WiMAX is a very power-consuming technology and requires significant electrical support.
6) High installation and operational cost.
There is a great book about wireless security that covers WiMAX also - Security in Wireless LANs and MANs.  After explaining security threats of deployment WLAN and WMAN (WiMAX), this book offers practical insight into identifying and overcoming these security threats.
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