If you already read about WiMAX Technology then next question arises to your mind is How WiMAX works. WiMAX is a telecommunication and mobie technology used for broadcasting of wireless data by the use of a number of transmission methods. WiMAX stands for Worldwide Interoperability for Microwave Access offering internet access point to point or point to multipoint or path. It is based on IEEE 802.16.
WiMAX make possible the broadband access to conservative cable or DSL lines. The working method of WiMAX is little different from Wi-Fi network, because Wi-Fi computer can be connected via LAN card, router, or hotspot, while the connectivity of WiMAX network constitutes of two parts in which one is WiMAX Tower or booster also known as WiMAX base station and second is WiMAX receiver (WiMAX CPE) or Customer Premise Equipment.
The WiMAX network is just like a cell phone. When a user send data from a subscriber device to a base station then that base station broadcast the wireless signal into channel which is called uplink and base station transmit the same or another user is called downlink. The base station of WiMAX has higher broadcasting power, antennas and enhanced additional algorithms.
WiMAX technology providers build a network with the help of towers that enable communication access over many miles. The broadband service of WiMAX technology is available in coverage areas. The coverage areas of WiMAX technology separated in series of over lied areas called channel.
When a user sends data from one location to another the wireless connection is transferred from one cell to another cell. When signal transmit form user to WiMAX base station or base to user (WiMAX receiver) the wireless channel faces many attenuation such as fraction, reflection, refraction, wall obstruction etc. These all attenuation may cause of distorted, and split toward multi path. The target of WiMAX receiver is to rebuild the transmitted data perfectly to make possible reliable data transmission.
The orthogonal frequency division multiplexed access (OFDMA) in WiMAX technology, is a great technique used to professionally take advantage from the frequency bands. The transmission frequencies of WiMAX technology from 2.3MHz to 3.5 GHz make it low price wireless network. Each spectral profile of WiMAX technology may need different hardware infrastructure. Each spectrum contains its bandwidth profile which resolved channel bandwidth. The bandwidth signal is separately in OFDMA (Orthogonal Frequency Division Multiplexed Access) which is used to carry data called sub carrier.
Transmitted data divided into numerous data stream where every one is owed to another sub carrier and then transmitted at the same broadcast interval. At the downlink path the base station broadcast the data for different user professionally over uninterrupted sub-carriers.
The independency of data is a great feature of OFDMA (Orthogonal Frequency Division Multiplexed Access) that prohibit interfering and be multiplexed. It also makes possible power prioritization for various sub carriers according to the link quality. The sub carrier having good quality carry more data since the bandwidth is narrow. But those have low quality carry nun data.
WiMAX is providing quality of service (WiMAX QoS) which enables high quality of data like VoIP or TV broadcasts. The data communication protocol from base station is alternative of quality of service (WiMAX QoS) application and offering video streaming. These types of data translated into parameters or sub carriers per user.
All type of technique is carrying out together to speed up coverage, bandwidth, efficiency and number of users. The base station of Wimax has ability to cover up 30 miles. WiMAX technology support various protocol such as VLAN, ATM, IPv4 Ethernet etc.