Multiple antennas can coherently combine signals to increase the Signal to Noise Ratio (SNR) and hence improve coverage.
Spatial diversity through multiple antennas can be used to combat fading and significantly improve link reliability. Diversity gain can then be obtained at both the transmitter and the receiver. New advances in space-time coding techniques provide transmit diversity gain without channel knowledge at the transmitter.
Multiple antennas can be used to suppress co-channel interference and hence allow a reduction in the frequency reuse factor. The lower the frequency reuse factor the more efficiently the spectrum is used. Efficient spectrum use significantly increases capacity.
The use of multiple antennas at both the transmitter and the receiver allows opening of parallel spatial data pipes within the same Radio Frequency (RF) channel. These data pipes provide an increase in user data rates proportional to the number of antennas.
At the core of the AvidoTM system is an advanced multiple patent-pending air interface featuring AvidoTM- OFDM Physical Layer and a purpose-built MAC layer that have been tightly integrated to provide optimal coverage and capacity in non-LOS environments. The entire AvidoTM system has been designed to take full advantage of this air interface.
The AvidoTM ecosystem enables data, voice and multimedia applications over an all IP platform in a mobile wireless environment, based on the IEEE 802.16e standard.
This ecosystem also enables complete interconnection solution between Fixed and Mobile Telephony Operators.
Three main aspects are emerging as trends in broadband industry:
Applications & Services:
Business services & products:
Services & Applications: