Using LDPC coding and AMC to mitigate received power imbalance in carrier aggregation communication system

Yang Han Lee, Yih Guang Jan, Hsin Huang, Qiang Chen, Qiaowei Yuan, Kunio Sawaya

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

When a carrier aggregation communication system suf- fers from receiving power imbalance (RPI) in its antenna array due to design flaw, operator's negligence etc. the system performance may be degraded to an unacceptable level. Specifically in this paper a carrier aggregation communication system with two carrier links while one link suffers RPI is considered, various modulation techniques, such as QPSK, 16 QAM and 64 QAM and/or coding schemes, Convolution Code (CC) and Low Density Parity Check Code (LDPC) are imple- mented in the system performance simulation to investigate the system behavior when it has the design request to maintain the same system performance in each link when the RPI has values of 7 or 10dB.

Original languageEnglish
Pages (from-to)618-622
Number of pages5
JournalIEICE Electronics Express
Volume8
Issue number8
DOIs
Publication statusPublished - 2011 Apr 25

Keywords

  • 16 QAM
  • 64 QAM
  • Adaptive modulation and coding (AMC)
  • Array antenna
  • Carrier aggregation
  • Convolution code (CC)
  • Low density parity check (LDPC)
  • QPSK
  • Received power imbalance (RPI)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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