【 Weak current College 】 wireless LAN technology and wireless access a comparative synthesis

Most network access will not subject to restriction, which is a widely held view. Personal digital assistant (PDA), cellular phones, notebook computers and IP-based facilities be able to connect through wireless LAN technology.
Based on IEEE802.11 wireless LAN technology combination constitutes the best solution for hotels, airports or offices, and other local area provides high performance access capabilities for mobile users anywhere access provides mobile radio services (wireless WAN). Wireless LAN/broadband and mobile phone services, seamless portfolio, known as fixed-mobile convergence. Fixed-mobile convergence global billion mobile phones in use, this figure is constantly increasing.

Global 1.3 billion over broadband line put into operation, and this figure is constantly increasing. Fixed-mobile convergence many users strongly prefer the mobile phone instead of fixed line telephone. WLAN in enterprises, households and hotspots, mass development of telecommunications, the rapid development of the era. Mobile and broadband frontier technologies combined in a variety of factors, in order to push the fixed mobile convergence technology development laid the Foundation.

Mobile Wireless LAN technology options including CDMA2000 and high-speed data overlap EV-DO (optimization of innovative data) and GSM/UMTS and HSDPA high-speed data overlap (high speed downlink packet access). In addition to these options, the two new upcoming IEEE mobile technology, namely 802.20 and 802.16 (WiMAX).

In addition, there are other mobile data technologies, including general packet radio LAN technology service (GPRS), EDGE, UMTS, CDMA1x and can be in the same RF carrier support for voice and data; however, the spectrum efficiency is concerned, this is not the best solution, because the requirements for voice and data. New high-performance wireless LAN technology features voice over an RF carrier transmission, the data is placed on another carrier.

For end users, fixed mobile convergence has the advantage, because of the always use the temporal and spatial conditions optimal wireless signal, so you can get a better connection. In building use mobile phones, in particular, the programme has a special advantage, because the best Wi-Fi, mobile signal can sometimes be the weakest.

Mobile operators, fixed mobile convergence has the advantage, enabling it to originally be cable operators occupy most of the buildings in the communications business, thereby accelerating grab a fixed mobile substitution process technology. It also provides broadband voice vendors in various geographic environment deployment services provides a strong support. These vendors use broadband IP voice (VoIP) technology to win business, but also in the building, its costs far less than the traditional operators. Dual-mode phone to play a major role, as broadband voice provides a full range of mobility. The fundamental advantage of operators is to provide a more superior user experience, this will help to improve the competitive position, reduce churn.