On the use of repetition coding with binary digital modulations on mobile channels

Ali, Adel A.; al-Kadi, Ibrahim A.

doi:10.1109/25.31130

Cited by 19 publications

(15 citation statements)

References 5 publications

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“…To take system complexity into account, the proposed scheme transmits the UWB signals by simple pulse repetition at the transmitter, like the conventional PRC [7,9]. However, to improve BER performance, the proposed scheme performs selective detection by estimating the SNR of the received pulse-repeated signals at the coherent IR-UWB receivers.…”

Section: Proposed Selective Detection Scheme Based On Pulse Repementioning

confidence: 97%

“…As an example, with the repetition code (3,1), the encoder encodes the message bit stream {0 [7,9]. Coherent IR-UWB systems using the simple PRC algorithm do not require complex computation; however, it is hard to effectively improve BER performance without the cost of a reduced data rate [9]. Convolutional codes have been widely investigated to effectively improve the BER performance of coherent IR-UWB systems.…”

Section: Proposed Selective Detection Scheme Based On Pulse Repementioning

confidence: 99%

“…By using majority logic detection, the repetition decoder selects the transmitted bit as the one that has the maximum occurrence in the received bit stream. As an example, with the repetition code (3,1), the encoder encodes the message bit stream {0 [7,9]. Coherent IR-UWB systems using the simple PRC algorithm do not require complex computation; however, it is hard to effectively improve BER performance without the cost of a reduced data rate [9].…”

Section: Proposed Selective Detection Scheme Based On Pulse Repementioning

confidence: 99%

“…Hence, we present a coding and detection scheme to effectively improve BER performance for coherent IR-UWB systems in this section. For the purpose of comparison, we first describe a simple PRC algorithm [7,9] using time diversity. The PRC (or repetition code), which is a simple time diversity technique, is an ( ,1) R coding algorithm that repeats bits across a channel to improve BER performance, where R denotes the number of coded bits or repeated pulses.…”

Section: Proposed Selective Detection Scheme Based On Pulse Repementioning

confidence: 99%

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Pulse Repetition Based Selective Detection Scheme for Coherent IR-UWB Systems

Kim

Roh²,

Shin

2009

2009 6th IEEE Consumer Communications and Networking Conference

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We propose a selective detection scheme based on pulse repetition for coherent IR-UWB (Impulse Radio-Ultra Wide Band) systems. For signal modulation and demodulation, we consider bi-phase modulation and on-off keying that are widely used in the coherent IR-UWB systems. The proposed selective detection scheme transmits the UWB signals by pulse repetition at the UWB transmitter to take system complexity into account, like conventional PRC (Pulse Repetition Coding). However, the proposed scheme performs selective detection by estimating the SNR (Signal-to-Noise Ratio) of the received pulserepeated signal to effectively improve BER (Bit Error Rate) performance at the UWB receiver, unlike the conventional PRC. Simulation results in the IEEE 802.15.4a channel models reveals that the proposed scheme effectively improves BER performance of the coherent IR-UWB systems without much increment of system complexity, as compared to the conventional PRC.

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Section: Proposed Selective Detection Scheme Based On Pulse Repementioning

confidence: 97%

Section: Proposed Selective Detection Scheme Based On Pulse Repementioning

confidence: 99%

Section: Proposed Selective Detection Scheme Based On Pulse Repementioning

confidence: 99%

Section: Proposed Selective Detection Scheme Based On Pulse Repementioning

confidence: 99%

See 2 more Smart Citations

Pulse Repetition Based Selective Detection Scheme for Coherent IR-UWB Systems

Kim

Roh²,

Shin

2009

2009 6th IEEE Consumer Communications and Networking Conference

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show abstract

“…For the purpose of comparison, we first introduce the conventional PRC [11], [13] algorithm using time diversity.…”

Section: Proposed Selective Detection Scheme Based On Pulse Repementioning

confidence: 99%

An Effective Selective Detection Scheme Based on Pulse Repetition for Noncoherent UWB Systems

Kim

Park

et al. 2008

IEEE Trans. Circuits Syst. II

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We propose a selective detection scheme based on pulse repetition considering the bit-error rate (BER) performance and complexity of noncoherent ultra-wide-band (UWB) systems. To take system complexity into account, the proposed scheme transmits the UWB signals by simple pulse repetition at the transmitter, like conventional pulse repetition coding (PRC). However, to effectively improve the BER performance, the proposed scheme performs selective detection by estimating the signal-to-noise ratio of the received pulse-repeated signals at the UWB receiver. Hence, the proposed scheme effectively improves the BER performance of the noncoherent UWB systems without much increasing system complexity, as compared to the conventional PRC.Index Terms-Binary pulse position modulation (2 PPM), noncoherent receiver, pulse repetition, selective detection, ultra-wideband (UWB).

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Performance analysis on DPSK modulation using symbol repetition and interleaving

Han

Lee

Kwon

et al. 2018

Int J Communication

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Summary It is well known that the differential phase shift keying (DPSK) transmission does not require a reference phase and reduces the computational complexity and power consumption of the receiver at the cost of the transmission reliability. To improve the reliability of transmission under such scenario, we use a symbol repetition scheme to the DPSK modulation, such as the IEEE 802.15.6 wireless body area network and the ITU‐T G.9903. However, the message symbol repetition with interleaving in conventional manner as in coherent modulation schemes may degrade the receiver performance because of the noise characteristic of the differential demodulation structure. In this work, we analyze the performance of repeated DPSK system with and without the interleaver and demonstrate which scenario is suitable for each modulation order. We propose a proper transmission setting, which achieves noticeable performance improvement at the receiver as well as enhances the energy efficiency of the communication system. Since it can be implemented with very small modification to existing systems, our results are highly applicable with negligible modification of the hardware structure and thus enable substantially low‐cost implementation in future communication systems including wireless body area network internet of things applications.

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On the use of repetition coding with binary digital modulations on mobile channels

Cited by 19 publications

References 5 publications

Pulse Repetition Based Selective Detection Scheme for Coherent IR-UWB Systems

Pulse Repetition Based Selective Detection Scheme for Coherent IR-UWB Systems

An Effective Selective Detection Scheme Based on Pulse Repetition for Noncoherent UWB Systems

Performance analysis on DPSK modulation using symbol repetition and interleaving

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