Mobile wireless is the use of wireless technology to provide voice, data or video service to locations that may change over time. Mobile wireless services include mobile telephone, mobile data and broadcast video services. Mobile wireless systems may replace or augment wireless telephone service, highspeed data communication links, and broadcast television systems.
Figure 1 depicts how a WiMAX system provides communication services to mobile devices. The WiMAX system has various options that can improve the signal quality to mobile users, which operate in a variety of urban, pedestrian and rural environments. The WiMAX system can use OFDM modulation which enhances mobile performance in multipath signal conditions and it can use MIMO and beam forming capabilities to increase signal reliability and system capacity.
