Downlink DSTBC-WCDMA in a fast time-dispersive channel

by Umali, Edwin M., Yamao, Yasushi
Published 2007

Quantization noise suppression for envelope pulse-width modulation (EPWM) transmitters

by Umali, Edwin M., Yokozawa, Shinsuke, Yamao, Yasushi
Published 2010

Power spectral analysis of the envelope pulse-width modulation (EPWM) transmitter for high efficiency amplification of OFDM signals

by Umali, Edwin M., Toyama, Yoshikazu, Yamao, Yasushi
Published 2008

Performance of downlink DSTBC-WCDMA in fast-varying time-dispersive channels

by Umali, Edwin M., Marciano, Joel Joseph S., Jr., Yamao, Yasushi
Published 2009

Effects of quantization noise and distortion in EPWM transmitters for OFDM signal amplification

by Umali, Edwin M., Kawazoe, Koji, Toyama, Yoshikazu, Yamao, Yasushi
Published 2009

Generation of OFDM signal with envelop pulse-width modulation (EPWM) transmitter employing 2nd-order delta-sigma modulator

by Kawazoe, Koji, Toyama, Yoshikazu, Umali, Edwin M., Yamao, Yasushi
Published 2008