Wideband predistorter for frequency hopped signal

This paper examines a memory polynomial model-based wideband digital predistorter for 100 hops/sec, frame-based-frequency-hopped LTE signal of 1.4MHz bandwidth and at a frequency spacing of 1MHz. As a narrowband predistorter at each hop frequency is beyond the scope of hardware resources and dwell time, a wideband predistorter has been implemented. An LTE signal of 20MHz bandwidth is used for training. The training signal has a complementary cumulative density function close to the signal under test. The Normalized Mean Square Error of the LTE signal of 1.4MHz is -32.07dB, and the Adjacent Channel Power Ratio is 44dBc on average.