Trellis coded hybrid 2FSK/4PSK with expurgated phase code

Gunawan Wibisono, Iwao Sasase

Research output: Contribution to journalArticle

Abstract

The performance of trellis coded hybrid frequency and phase shift modulation (TC HFPSK) with the expurgated phase code and the asymmetric signal constellation is investigated by using the minimum squared free Euclidean distance dfree2 and the bit error rate (BER). It is found that TC hybrid 2FSK/4PSK with the expurgated phase code shows larger dfree2 than the corresponding TC hybrid 2FSK/4PSK with the complete phase code for varying the angle φ that determines the asymmetric signal constellation. The maximum value of dfree2 of TC hybrid 2FSK/4PSK with the expurgated phase code can be obtained when the signal constellation is symmetric. The performance of BER is analyzed in additive white Gaussian noise (AWGN) and fading channels by using uniform error property and error bound based on transfer function. It is found that the coding gain of TC hybrid 2FSK/4PSK with the expurgated phase code over uncoded hybrid 2FSK/2PSK at BER = 10-4 are 2.71 dB and 4.74 dB in AWGN and fading channels, respectively. The performance improvements of TC hybrid 2FSK/4PSK with the expurgated phase code over TC 8PSK at BER = 10-4 are 0.68 dB and 4.07 dB in AWGN and fading channels, respectively.

Original languageEnglish
Pages (from-to)752-759
Number of pages8
JournalIEICE Transactions on Communications
VolumeE78-B
Issue number5
Publication statusPublished - 1995 May

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Bit error rate
Fading channels
Phase shift
Transfer functions
Modulation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Trellis coded hybrid 2FSK/4PSK with expurgated phase code. / Wibisono, Gunawan; Sasase, Iwao.

In: IEICE Transactions on Communications, Vol. E78-B, No. 5, 05.1995, p. 752-759.

Research output: Contribution to journalArticle

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