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In this paper, a new expression is derived for the bit error rate (BER) performance of Gray-encoded MDPSK for *M*=2 and 4 in orthogonal frequency division multiplexing (OFDM) systems over time-variant and frequency-selective Rayleigh fading channels. We assume that the guard time is sufficiently larger than the delay spread to solve the intersymbol interference (ISI) problem on the demodulated OFDM signal. In this case, the performance depends on the Doppler spread of fading channel. The closed form expression for the bit error probability of MDPSK/OFDM extended from the result in [5] shows that the BER performance of MDPSK is determined by (*N* + *N*_{G} ) *f*_{D} *T*_{s} where *N* is the number of subchannels, *N*_{G} the length of the guard interval, *f*_{D} the maximum Doppler frequency, and *T*_{s} the sampling period. The theoretical analysis results are confirmed by computer simulations for DPSK and QDPSK signals.

- Publication
- IEICE TRANSACTIONS on Communications Vol.E84-B No.2 pp.337-340

- Publication Date
- 2001/02/01

- Publicized

- Online ISSN

- DOI

- Type of Manuscript
- LETTER

- Category
- Wireless Communication Technology

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JeongWoo JWA, HwangSoo LEE, "Performance of OFDM/MDPSK over Time-Variant Multipath Rayleigh Fading Channels" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 2, pp. 337-340, February 2001, doi: .

Abstract: In this paper, a new expression is derived for the bit error rate (BER) performance of Gray-encoded MDPSK for *M*=2 and 4 in orthogonal frequency division multiplexing (OFDM) systems over time-variant and frequency-selective Rayleigh fading channels. We assume that the guard time is sufficiently larger than the delay spread to solve the intersymbol interference (ISI) problem on the demodulated OFDM signal. In this case, the performance depends on the Doppler spread of fading channel. The closed form expression for the bit error probability of MDPSK/OFDM extended from the result in [5] shows that the BER performance of MDPSK is determined by (*N* + *N*_{G} ) *f*_{D} *T*_{s} where *N* is the number of subchannels, *N*_{G} the length of the guard interval, *f*_{D} the maximum Doppler frequency, and *T*_{s} the sampling period. The theoretical analysis results are confirmed by computer simulations for DPSK and QDPSK signals.

URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_2_337/_p

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@ARTICLE{e84-b_2_337,

author={JeongWoo JWA, HwangSoo LEE, },

journal={IEICE TRANSACTIONS on Communications},

title={Performance of OFDM/MDPSK over Time-Variant Multipath Rayleigh Fading Channels},

year={2001},

volume={E84-B},

number={2},

pages={337-340},

abstract={In this paper, a new expression is derived for the bit error rate (BER) performance of Gray-encoded MDPSK for *M*=2 and 4 in orthogonal frequency division multiplexing (OFDM) systems over time-variant and frequency-selective Rayleigh fading channels. We assume that the guard time is sufficiently larger than the delay spread to solve the intersymbol interference (ISI) problem on the demodulated OFDM signal. In this case, the performance depends on the Doppler spread of fading channel. The closed form expression for the bit error probability of MDPSK/OFDM extended from the result in [5] shows that the BER performance of MDPSK is determined by (*N* + *N*_{G} ) *f*_{D} *T*_{s} where *N* is the number of subchannels, *N*_{G} the length of the guard interval, *f*_{D} the maximum Doppler frequency, and *T*_{s} the sampling period. The theoretical analysis results are confirmed by computer simulations for DPSK and QDPSK signals.},

keywords={},

doi={},

ISSN={},

month={February},}

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TY - JOUR

TI - Performance of OFDM/MDPSK over Time-Variant Multipath Rayleigh Fading Channels

T2 - IEICE TRANSACTIONS on Communications

SP - 337

EP - 340

AU - JeongWoo JWA

AU - HwangSoo LEE

PY - 2001

DO -

JO - IEICE TRANSACTIONS on Communications

SN -

VL - E84-B

IS - 2

JA - IEICE TRANSACTIONS on Communications

Y1 - February 2001

AB - In this paper, a new expression is derived for the bit error rate (BER) performance of Gray-encoded MDPSK for *M*=2 and 4 in orthogonal frequency division multiplexing (OFDM) systems over time-variant and frequency-selective Rayleigh fading channels. We assume that the guard time is sufficiently larger than the delay spread to solve the intersymbol interference (ISI) problem on the demodulated OFDM signal. In this case, the performance depends on the Doppler spread of fading channel. The closed form expression for the bit error probability of MDPSK/OFDM extended from the result in [5] shows that the BER performance of MDPSK is determined by (*N* + *N*_{G} ) *f*_{D} *T*_{s} where *N* is the number of subchannels, *N*_{G} the length of the guard interval, *f*_{D} the maximum Doppler frequency, and *T*_{s} the sampling period. The theoretical analysis results are confirmed by computer simulations for DPSK and QDPSK signals.

ER -