Joint carrier recovery and multimodulus blind decision-feedback equalization under high-order QAM

Kun Chien Hung*, David W. Lin

*Corresponding author for this work

Research output: Contribution to conferencePaper

12 Scopus citations

Abstract

The multimodulus algorithm (MMA) for blind equalization has good performance, but can only tolerate small carrier frequency offsets under high-order QAM. We propose a structure for joint carrier recovery (CR) and blind decision-feedback equalization (DFE), where the DFE is MMA-based. It turns out that a key point is the design and analysis of reduced-constellation phase detectors (PDs) that can facilitate a wide frequency lock range and make the CR loop converge in severe intersymbol interference and noise. Based on this, we design a multistage startup procedure for joint blind DFE and CR. Simulations show that the procedure can yield fast convergence in large carrier frequency errors under high-order QAM.

Original languageEnglish
Pages2281-2285
Number of pages5
StatePublished - 1 Dec 2004
EventGLOBECOM'04 - IEEE Global Telecommunications Conference - Dallas, TX, United States
Duration: 29 Nov 20043 Dec 2004

Conference

ConferenceGLOBECOM'04 - IEEE Global Telecommunications Conference
CountryUnited States
CityDallas, TX
Period29/11/043/12/04

Fingerprint Dive into the research topics of 'Joint carrier recovery and multimodulus blind decision-feedback equalization under high-order QAM'. Together they form a unique fingerprint.

  • Cite this

    Hung, K. C., & Lin, D. W. (2004). Joint carrier recovery and multimodulus blind decision-feedback equalization under high-order QAM. 2281-2285. Paper presented at GLOBECOM'04 - IEEE Global Telecommunications Conference, Dallas, TX, United States.