Wireless communication technology is Ethernet will eventually win?
"Will eventually be Ethernet over competing technologies. It is the most powerful communication technology", I thought a few years ago, a communication technology staff say this statement. At that time, he added: "From the technical point of view, now I still think that Token Ring (TokenRing) better than Ethernet. However, victory is the Ethernet."
As the technical staff said, was born in 1973 in the United States Institute of Xerox PARC's Ethernet, since its inception has defeated a variety of competing technologies, scope of application is expanding. The first competitor is IBM's Token Ring development. According to the above technical staff who explained the speed and transmission efficiency, the experts were generally considered superior to Ethernet.
However, from the present situation it is clear that the ultimate popular is Ethernet. Other, Ethernet technology in the battle of competition is steadily victory ever-expanding range of applications. Defeated technologies include 100VG-AnyLAN (IEEE802.12) and FDDI, etc.. Even in long-distance communication used in ATM (AsynchronousTransferMode, Asynchronous Transfer Mode) and SONET / SDH, and its position was constantly threatened by the high-speed Ethernet.
The beginning of this sentence I think the reason is because Japan Livedoor later than planned 2 months, on December 1st launched a public wireless LAN service "LivedoorWireless". The service is characterized by hope to cover the Tokyo area within the Yamanote line in this vast region (called the surface to expand).
Livedoor also activate the participation of the existing public wireless LAN operator. NTT Group and Japan Telecom appears to have stagnated in recent years to the business situation of forgetting to back of the head, is a rapid increase in base station equipment. Although they did not mention unfold, but with the increase of the base station, speaking from the results may have a similar situation to this.
, However, especially among experts, the start was questioned LivedoorWireless plan. Envisaged, LivedoorWireless will meet the 2.4GHz frequency band set by a large number of IEEE802.11b / g wireless LAN base stations, the strength of this type means to unfold the purpose. And then there are some technical difficulties. As IEEE802.11 originally used to cover a small indoor area. If a large area of services covered outdoor use, for example, using the W-CDMA and mobile WiMAX (IEEE802.16e) and other specialized technical services to appear later, may not ultimately win.
Hit this point of view of the problem. The reason is, IEEE802.11b / g 2.4GHz band used by microwave ovens are now widely used in other areas, outside will be difficult to provide services as planned. In fact, the map provided in LivedoorWireless view its service area, found that although the place has been set in the 2200 base station, but it is difficult to say now, "Implementation of the surface coverage." The future certainly need to continue to increase the number of base stations, but to what extent can we consider enough are still unknown. A base station needs to increase funding to the operational aspects of two issues will become increasingly prominent.
When I carefully analyzing the above situation, think of the man with the beginning of the dialogue between technical staff, as well as IEEE802.11b / g Ethernet-based communications technology that fact.
Defeated by Ethernet technology have in common is that, when the experts have been "in the use of Ethernet technology is better than" evaluation. Well, technically disadvantaged Ethernet why can win? Despite the disagreement, but the technical staff who believes that the main reason is that Ethernet technology, while not the best, but people will have to the use of performance, but the standard is simple, therefore lower cost than competing technologies.
From a cost point of view, the current IEEE802.11b / g clearly dominant. In the notebook computer has already been very widely spread, and embedded device communications module prices could fall below 10 U.S. dollars. Unlike competing technologies, another benefit is "immediately able to use." The remaining issue is, "people will be able to use the performance of the" How the. I believe users will soon give the answer. I prepared myself as a user to use and study LivedoorWireless.
From the individual, the author of the IEEE802.11b / g full of expectations, but the ultimate winner may be mobile WiMAX. The reason is that, as we all know, mobile WiMAX is a derivative of the Ethernet technology. That is, in any case, the Ethernet will be available as the final winners. Ethernet is really terrible! [Key words]: Ethernet Wireless Communication IEEE802.11b / g Comment Large In Small
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