Performances of the superimposition schemes for OFDM systems

Jun Kyoung Lee, Jang Hoon Yang, Dong Ku Kim

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

1 Citation (Scopus)

Abstract

To increase the spectral efficiency of orthogonal frequency division multiplexing (OFDM) systems, many techniques have been proposed. Recently, we proposed a superimposition scheme which is called the time domain superimposition of data (TDSD). In this paper, we compare the performance of TDSD with the conventional superimposition schemes such as the superimposed periodic pilot in the time domain (SPPT) and the added pilot semi-blind channel estimation (APSB) in terms of channel estimation, bit error rate (BER) performance, relative spectral efficiency, and complexity. The simulation results show that comparing to the conventional OFDM, TDSD can increase the spectral efficiency up to about 20% with the superimposition factor M = 16 while SPPT has the similar efficiency. APSB has the worst efficiency. copyright

Original languageEnglish
Title of host publication2008 14th Asia-Pacific Conference on Communications, APCC 2008
Publication statusPublished - 2008 Dec 1
Event2008 14th Asia-Pacific Conference on Communications, APCC 2008 - Akihabara, Tokyo, United States
Duration: 2008 Oct 142008 Oct 16

Other

Other2008 14th Asia-Pacific Conference on Communications, APCC 2008
CountryUnited States
CityAkihabara, Tokyo
Period08/10/1408/10/16

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Communication

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    Lee, J. K., Yang, J. H., & Kim, D. K. (2008). Performances of the superimposition schemes for OFDM systems. In 2008 14th Asia-Pacific Conference on Communications, APCC 2008 [4773754]