Variable-rate coding for meteor-burst communications

Pursley, M.B.; Sandberg, S.D.

doi:10.1109/26.46504

Cited by 41 publications

(14 citation statements)

References 4 publications

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“…The probability depends on through the symbol error and erasure probabilities, as is clear from (4)- (7). Let and let…”

Section: E Methods For Selecting Codes For the Code Setmentioning

confidence: 99%

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Adaptation of the Code Rate and Transmitter Power in Frequency-Hop Communications

Pursley

Wilkins

2004

IEEE Trans. Wireless Commun.

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An adaptive transmission technique for frequency-hop packet transmission is described and its performance is evaluated for certain channels with unknown or time-varying parameters. The power in the transmitted signal and the rate of the error-control code are adapted in a way that provides energy-efficient communications. The slow-frequency-hop packet transmissions have several bits per hop and several hops per packet. Feedback is limited to a few bits in each acknowledgment packet, and the feedback for our adaptive transmission consists of only the counts of errors and erasures from the previous packet transmission. The performance of the adaptive transmission system is evaluated for channels with unknown but fixed partial-band interference and propagation loss and for certain channels with time-varying partial-band interference and propagation loss.Index Terms-Adaptive transmission, frequency-hop spread spectrum, packet radio.

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“…The probability depends on through the symbol error and erasure probabilities, as is clear from (4)- (7). Let and let…”

Section: E Methods For Selecting Codes For the Code Setmentioning

confidence: 99%

“…Instead, the feedback information is limited to counts of errors and erasures that are obtained easily in the demodulator and decoder. If more information is available about the channel, the methods of [7] and [8] may be applicable for adapting the code rate.…”

Section: Introductionmentioning

confidence: 99%

Adaptation of the Code Rate and Transmitter Power in Frequency-Hop Communications

Pursley

Wilkins

2004

IEEE Trans. Wireless Commun.

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“…Hence, we have (14) Expressing (11) and (12) in terms of , the average error probability is given by (15) where is given by (16) To obtain a tight error bound, we have to minimize w.r.t. and .…”

Section: A Variable Duration Schemementioning

confidence: 99%

“…The performance of uncoded variable rate and power transmission schemes for Rayleigh fading channel based on the feedback of channel state information has been considered in [3]- [7]. Many practical adaptive error correction codes have been proposed in recent years to reduce the bit error rate and to increase throughput of the mobile radio channels [8]- [14], [15]. In this paper, we model a general scheme of variable rate adaptive channel coding which varies the code rate according to the channel condition and explore the fundamental reasons why there is a performance improvement over fixed-rate coding.…”

Section: Introductionmentioning

confidence: 99%

Channel capacity and error exponents of variable rate adaptive channel coding for Rayleigh fading channels

Lau¹

1999

IEEE Trans. Commun.

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“…This paper considers the combined use of VRS and errorcorrection coding. Specific VRS and coding schemes have been analyzed in [I 21 - [14]. Instead of analyzing specific coding methods, this paper quantifies the achievable performance by computing the cutoff rate, Ro.…”

Section: Introductionmentioning

confidence: 99%

Variable-rate signalling in conjunction with coding for meteor burst communications

Mui

MILCOM 91 - Conference Record

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This paper examines the use of variable-rate signalling in conjunction with error-correction coding for a meteor burst channel model which assumes that the received signal amplitude decays exponentially. It is assumed that the transmission bandwidth is reduced as a function of the time to compensate for the signal decay. The performance achievable with variable-rate signalling is quantified by calculating the, cutoff rate, Ro. The average signal-to-noise ratio per bit, &/NO, required to support communications is calculated under the assumption that the code rate is equal to the cutoff rate. It is shown that the improvement of variable-rate signalling over fixed-rate signalling is large if the code rate is moderate to high, and that the improvement is small if the code rate is low and the decoder is provided with side information on the received signal level.

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Variable-rate coding for meteor-burst communications

Cited by 41 publications

References 4 publications

Adaptation of the Code Rate and Transmitter Power in Frequency-Hop Communications

Adaptation of the Code Rate and Transmitter Power in Frequency-Hop Communications

Channel capacity and error exponents of variable rate adaptive channel coding for Rayleigh fading channels

Variable-rate signalling in conjunction with coding for meteor burst communications

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