Design and performance of an LDPC-Coded FH-OFDMA system in the uplink cellular environments

Yun Hee Kim, Kwang Soon Kim, Sang Hyun Lee

Research output: Contribution to journalArticlepeer-review


An LDPC-coded FH-OFDMA system is proposed for the uplink of a packet-based cellular system, where the frequency hopping (FH) is based on a resource block (RB) for coherent demodulation. For the system, different RB types are employed either for better intercell interference (ICI) averaging capability or for better channel estimation performance. For the receiver, practical iterative channel estimation and decoding methods are proposed to improve the channel estimation performance without boosting the pilot power and to mitigate the adverse effects of the ICI. Extensive simulation results are provided to show the effect of the RB size on the channel estimation and ICI averaging performance as well as possible application of the proposed receiver in harsh mobile environments with dynamic packet allocation.

Original languageEnglish
Pages (from-to)828-836
Number of pages9
JournalIEICE Transactions on Communications
Issue number3
Publication statusPublished - 2006
Externally publishedYes


  • Frequency hopping OFDMA
  • Iterative channel estimation
  • Uplink

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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