Vector network analyzer applique for adaptive communications in wireless networks

摘要: A test signal generator at a transmitter station and facsimile receiver go through an acquisition tracking process which aligns the two signals so that logical processor can compute frequency transfer function of entire propagation path for use in adaptive, concurrently sent communication signal. The is conveyed back to transmit end via control channel permitting adaptivity influence subsequent selection parameters, among are typically transmitted data rate, modulation, forward error correcting coding, band transmission. same measurement receive communications select demodulator variables such as gain control, equalization amplitude phase, versus frequency. also permits interspersing reverse-direction over bands time-share mode between forward-direction with having be only one direction. An alternate embodiment invention this type described additionally useful mobile channels. Another variation pure measurements only, absent conveyance end-user information.