H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/005 (2006.01) H04Q 7/36 (2006.01)
Patent
CA 2383717
A Fiber-wireless uplink consists of a wireless channel followed by a radio- over-fiber (ROF) link. Typically, nonlinear distortion of the ROF link is the major concern when the radio frequency is only a few GHz. This especially severe in the uplink, because of the multipath fading of the wireless channel. A Hammerstein type decision feedback equalizer is described for the fiber wireless uplink, that compensates for nonlinear distortion of the ROF link as well as linear dispersion of the wireless channel. Since the linear and nonlinear parts of the receiver are separated, tracking the fast changing wireless channel is virtually independent of compensating for the relatively static nonlinearity. Analytical results show that the receiver provides excellent compensation with notably less complexity.
Fernando Xavier Navajothy
Sesay Abu Bakarr
Telecommunications Research Laboratories
Thompson Lambert Llp
LandOfFree
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