ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
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A Study on ${\pi}$/4-DQPSK with Nonredundant Multiple Error Correction

  • Received : 1998.08.29
  • Published : 1999.06.30
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Abstract

In this paper, to enhance the performance of ${\pi}$/4-DQPSK (${\pi}$/4-differential quadrature phase shift keying), the scheme using nonredundant multiple error correction is proposed and investigated. This scheme for the differential detection of ${\pi}$/4-DQPSK uses the signal output which is delayed for more than two time slots as the parity check bit and applies it to nonredundant multiple error correction. The proposed system was used for studying the performance of ${\pi}$/4-DQPSK with Nonredundant Error Correction (NEC) in additive white Gaussian noise (AWGN) and Nakagami fade modeled mobile communication channel, and it was observed that the performance increased as the error correction capability increased.

Keywords

References

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