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

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

doi:10.1109/vtc.1987.1623524

Cited by 3 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Crepeau and Roberts and Bargallo investigate the performance of DPSK in various fading channel conditions without consideration of repetition coding. In Ali and Al‐Kadi, the performance of DPSK with repetition coding is analyzed. Since the system model in Ali and Al‐Kadi supposes that the fading is fast enough such that 2 adjacent symbols are independent, and thus, the correlation between adjacent symbols is not considered.…”

Section: Introductionmentioning

confidence: 99%

“…In Ali and Al‐Kadi, the performance of DPSK with repetition coding is analyzed. Since the system model in Ali and Al‐Kadi supposes that the fading is fast enough such that 2 adjacent symbols are independent, and thus, the correlation between adjacent symbols is not considered. Chandra and Bose show analytic results of the DPSK with maximum ratio combining (MRC) in a single input and multiple output environment.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance analysis on DPSK modulation using symbol repetition and interleaving

Han

Lee

Kwon

et al. 2018

Int J Communication

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance analysis on DPSK modulation using symbol repetition and interleaving

Han

Lee

Kwon

et al. 2018

Int J Communication

View full text Add to dashboard Cite

show abstract

“…In [10], an adaptive transmission technique employing subcarrier phase shift keying (S-PSK) intensity modulation has been proposed. Another solution is the employment of adaptive transmission based on repetition coding, a well known technique employed in RF systems [2]. Based on the concept of temporal-domain diversity reception (TD-DR), this idea has been applied for FSO links in [32,42,43], where two separate channels over the same transmit and receive path are implemented.…”

Section: Introductionmentioning

confidence: 99%

Rate-Adaptive Free-Space Optical Links Over Atmospheric Turbulence and Misalignment Fading Channels

García-Zambrana¹,

Castillo-Vázquez²,

Castillo-Vázquez³

2012

Optical Communication

View full text Add to dashboard Cite

“…The simplest coding scheme is repetitive coding where the same symbol is transmitted over several different frequencies or different time slots. The advantage of repetitive coding is the detection procedure where after signal combining symbol by symbol detection is still possible (Ali et al, 1989). The drawback is ofcourse the bandwidth expansion which makes the system efficiency decreases inversely with the number of repetitions.…”

Section: Introductionmentioning

confidence: 99%

Combined Transmitter Diversity and Multi-Level Modulation Techniques

Slimane

2006

Wireless Pers Commun

View full text Add to dashboard Cite

Abstract:Orthogonal transmitter diversity such as frequency diversity and time diversity is quite simple to implement and, with optimum signal combining, can take full advantage of fading multipath channels. However, such a scheme has a bandwidth efficiency that decreases inversely with the number of diversity branches making it less attractive in wireless communications applications. This paper considers combined orthogonal transmitter diversity and multi-level linear modulation techniques. The idea is to view the signal constellations of the modulation scheme in an augmented signal space formed by the modulation signal dimension and the number of branches of the transmitter diversity scheme. This augmented signal space provides a good spread for the modulation signal points and can be quite efficient for high-level linear modulation techniques. The obtained results show that this combined scheme, not only improves the system performance in both additive white Gaussian noise and fading multipath channels, but also improves the bandwidth efficiency of orthogonal transmitter diversity.

show abstract

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

Cited by 3 publications

References 7 publications

Performance analysis on DPSK modulation using symbol repetition and interleaving

Performance analysis on DPSK modulation using symbol repetition and interleaving

Rate-Adaptive Free-Space Optical Links Over Atmospheric Turbulence and Misalignment Fading Channels

Combined Transmitter Diversity and Multi-Level Modulation Techniques

Contact Info

Product

Resources

About