Performance Evaluation of WPMCM with Carrier Frequency Offset and Phase Noise

Abstract

Abstract-Wavelet Packet based Multi-Carrier Modulation (WPMCM) offers an alternative to the well-established OFDM as an efficient multicarrier modulation technique. It has strong advantage of being a generic transmission scheme whose actual characteristics can be widely customized to fulfill several requirements and constraints of an advanced communication systems. However, a few research questions remain to be addressed before the novel WPMCM can be used in practice. One of the major concerns is the performance of WPMCM transceivers in the presence of analogue radio frequency front-end imperfections. In this paper we analyze the impact of interference in WPMCM transmission caused by the carrier frequency offset and phase noise. The sensitivity of WPMCM transceivers to these errors using standard wavelets is evaluated through simulation studies and their performances are compared and contrasted with OFDM.

An Investigation on the Sensitivity of Wavelet Packet Modulation to Time Synchronization Error

“…It is worth mentioning here that the performances of WPMCM matches well with that of OFDM with regard to phase and frequency offset errors [37]. Furthermore, the Peakto-Average Power Ratio (PAPR) performance of WPMCM and OFDM are comparable [38].…”

A new approach for designing orthogonal wavelets for multicarrier applications

“…Filter coefficients used in the design of wavelet filter banks relate to Laurent polynomials [22], Chebyshev polynomials [23] or the Lagrange half-band functions shown in [7] derived as approximations of Chebyshev polynomials. These filters must have linear phase [24,25] and finite length to be finitely supported [26]: examples are FIR filters.…”

Performance Assessment of DFT-OFDM and DWT-OFDM Systems in the Presence of the SSPA and Fading Channel

“…The multicarrier symbols of DFT-OFDM do not overlap each other as IDFT and DFT transforms are carried out for each group of subcarriers independently. The use of longer waveforms in DWT-OFDM, on the other hand, allows better frequency localization of subcarriers while in DFT-OFDM the rectangular shape of the DFT window generates large side lobes [16].…”

“…A number of applications and standards which use OFDM include Digital Audio Broadcasting (DAB), Digital Video Broadcasting (DVB), WiFi (IEEE 802.11a/g/j/n), World Wide Interoperability for Microwave Access (WiMAX-IEEE 802. 16 20). Inverse Fast Fourier Transform (IFFT) and FFT are used in OFDM to multiplex the signals together and demultiplex the signals in the receiver, respectively [1].…”