A bit-loaded OFDMA for in-home power line communications

Taro Hayasaki, Daisuke Umehara, Satoshi Denno, Masahiro Morikura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

The in-home broadband power line communication (PLC) is drawing attention to us lately. The broadband PLC has regulation issues for the coexistence with shortwave wireless systems. Therefore, orthogonal frequency division multiplexing (OFDM) is adopted for the broadband PLC. On the other hand, the power line channels suffer from frequency selective fading. It is effective to load appropriate bits on each subcarrier in the OFDM for PLC. In this paper, we propose a bit loading algorithm that maximizes the bit rate by optimizing not only the bit quantity on each subcarrier but also the whole code rate of the forward error correction (FEC) code subject to constraints on the total bit error rate (BER) and power on each subcarrier. Furthermore, we investigate orthogonal frequency division multiple access (OFDMA) as a multiple access scheme on the in-home power line networks. We show that the proposed OFDMA scheme is superior to a time division multiple access (TDMA) scheme from the viewpoint of throughput by computer simulations.

Original languageEnglish
Title of host publication2009 IEEE International Symposium on Power Line Communications and its Applications, ISPLC 2009
Pages171-176
Number of pages6
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 IEEE International Symposium on Power Line Communications and its Applications, ISPLC 2009 - Dresden, Germany
Duration: Mar 29 2009Apr 1 2009

Other

Other2009 IEEE International Symposium on Power Line Communications and its Applications, ISPLC 2009
CountryGermany
CityDresden
Period3/29/094/1/09

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Keywords

  • Bit loading algorithm
  • Forward error correction
  • OFDM
  • OFDMA
  • Power line communication

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Hayasaki, T., Umehara, D., Denno, S., & Morikura, M. (2009). A bit-loaded OFDMA for in-home power line communications. In 2009 IEEE International Symposium on Power Line Communications and its Applications, ISPLC 2009 (pp. 171-176). [4913424] https://doi.org/10.1109/ISPLC.2009.4913424