The rising popularity of WiMax subscribers made a lot of companies to change their strategy as far as wireless technology is concerned. To keep up with the competition and the demands of the growing market, these global industries have upgraded their hardware and software systems to support millions of prospective subscribers. To prove such claim, a WiMax subscriber forecast was done by Senza Fili Consulting in 2007 and the results dictate that the WiMax population will even grow up to approximately 25 million by 2012. Such huge market is inevitably enticing as investments will definitely yield massive profits – that is if every issue that surrounds WiMax will be resolved at present.
If everything is working as designed, subscribers will be expecting peak performance each time that they will connect using WiMax. However, due to circumstances that are sometimes out of control, average performance is delivered instead. Such performance usually varies throughout a coverage area. The following are some of the many factors that yield average to poor WiMax performance.
(a) Network Load – Because of the fact that wireless is a shared medium, per-user performance in each subscriber station is at risk as more and more people will log in. An increase in the number of users results to not-so-good performance.
(b) Backhaul Capacity – Insufficient transmission capacity of many base stations to transmit wireless traffic into the network core provides restriction to individual user performance levels.
(c) Mobility Speed – Maintaining communication is difficult as the mobile device moves faster.
(d) Channel bandwidth – WiMax operates in varying degrees of bandwidth, thus it plays a major role in achieving optimum performance.
These are just some of the few factors that limit WiMax to eventually gain dominance in the wireless broadband market. Considering such factors will yield improvement to WiMax technology.