Iterative Interference Cancellation and Channel Estimation in Evolved Multimedia Broadcast Multicast System Using Filter-Bank Multicarrier-Quadrature Amplitude Modulation

Beom Kwon, Seonghyun Kim, Donghyun Jeon, Sanghoon Lee

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We propose a new channel estimation method based on filter-bank multicarrier-quadrature amplitude modulation (FBMC/QAM) for use in evolved multimedia broadcast multicast systems (eMBMSs). To achieve this goal, we use two different prototype filters to satisfy the orthogonality conditions for even and odd subcarriers. Orthogonality conditions cannot, in practice, be guaranteed using only two filters because they generate residual interference, including intercarrier and intersymbol interference, which makes it difficult to obtain accurate channel coefficients at reference symbols and leads to degraded channel estimation and bit error rates (BERs). To reduce the influence of residual interference on channel estimation, we model residual interference in a closed form over a multipath channel. Based on this approximated residual interference, the interference is effectively cancelled with respect to the reference, thereby significantly improving the FBMC/QAM-based eMBMS performance. Simulation demonstrates that the proposed method improves the mean squared error, BER, and the effective data rate.

Original languageEnglish
Article number7727947
Pages (from-to)864-875
Number of pages12
JournalIEEE Transactions on Broadcasting
Volume62
Issue number4
DOIs
Publication statusPublished - 2016 Dec

All Science Journal Classification (ASJC) codes

  • Media Technology
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Iterative Interference Cancellation and Channel Estimation in Evolved Multimedia Broadcast Multicast System Using Filter-Bank Multicarrier-Quadrature Amplitude Modulation'. Together they form a unique fingerprint.

  • Cite this