BER Reduction of OFDM Based Broadband Communication Systems over Multipath Channels with Impulsive Noise

Mirahmadi, Maysam; Al-Dweik, Arafat; Shami, Abdallah

doi:10.1109/tcomm.2013.102313.130220

Cited by 71 publications

(42 citation statements)

References 35 publications

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“…Most of today's broadband communication systems are based on Orthogonal Frequency Division Multiplexing (OFDM) mainly due to its robustness against multi-path channels [36], [37]. However, to achieve an end-to-end latency of 1 ms, the physical transmission must have very small packets which requires a one-way PHY layer transmission of 100 µs as shown in Fig.…”

Section: B Phy Design For Ultra-low Latencymentioning

confidence: 99%

“…The low latency required for Tactile Internet applications, however, demands for short bursts of data, meaning that OFDM signals with one CP per symbol may present a prohibitive low spectral efficiency. Additionally, OFDM square pulse shaping leads to high out-of-band (OOB) emission which poses a challenge for opportunistic [37] and dynamic spectrum access [39], [40]. These challenges motivate an investigation into alternative waveforms to OFDM for the next generation networks.…”

Section: B Phy Design For Ultra-low Latencymentioning

confidence: 99%

See 1 more Smart Citation

5G-Enabled Tactile Internet

Simsek

Aijaz

Dohler

et al. 2016

IEEE J. Select. Areas Commun.

700

430

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Abstract-The long-term ambition of the Tactile Internet is to enable a democratization of skill, and how it is being delivered globally. An integral part of this is to be able to transmit touch in perceived real-time, which is enabled by suitable robotics and haptics equipment at the edges, along with an unprecedented communications network. The fifth generation (5G) mobile communications systems will underpin this emerging Internet at the wireless edge. This paper presents the most important technology concepts which lay at the intersection of the larger Tactile Internet and the emerging 5G systems. The paper outlines the key technical requirements and architectural approaches for the Tactile Internet, pertaining to wireless access protocols, radio resource management aspects, next generation core networking capabilities, edge-cloud and edge-AI capabilities. The paper also highlights the economic impact of the Tactile Internet as well as a major shift in business models for the traditional telecommunications ecosystem.

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Section: B Phy Design For Ultra-low Latencymentioning

confidence: 99%

Section: B Phy Design For Ultra-low Latencymentioning

confidence: 99%

5G-Enabled Tactile Internet

Simsek

Aijaz

Dohler

et al. 2016

IEEE J. Select. Areas Commun.

700

430

View full text Add to dashboard Cite

show abstract

“…In particular, it provides a practical technique of asynchronous impulsive noise mitigation in PLC systems which employ high-order QAM for increasing the system throughput. It is worth mentioning that the proposed method can also be applied in the periodic impulsive noise mitigation when incorporating the time domain interleaving (TDI-OFDM) technique of [27].…”

Section: Resultsmentioning

confidence: 99%

Efficient Impulsive Noise Mitigation for OFDM Systems Using the Alternating Direction Method of Multipliers

2018

Mathematical Problems in Engineering

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An efficient impulsive noise estimation algorithm based on alternating direction method of multipliers (ADMM) is proposed for OFDM systems using quadrature amplitude modulation (QAM). Firstly, we adopt the compressed sensing (CS) method based on the ℓ 1 -norm optimization to estimate impulsive noise. Instead of the conventional methods that exploit only the received signal in null tones as constraint, we add the received signal of data tones and QAM constellations as constraints. Then a relaxation approach is introduced to convert the discrete constellations to the convex box constraints. After that a linear programming is used to solve the optimization problem. Finally, a framework of ADMM is developed to solve the problem in order to reduce the computation complexity. Simulation results for 4-QAM and 16-QAM demonstrate the practical advantages of the proposed algorithm over the other algorithms in bit error rate performance gains.

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“…By using 4 orthogonal pulses the proposed scheme can generate distinctive pattern sequences for 12 channels. The proposed scheme is different than the IFFT-based Walsh-Hadamard orthogonal code generation [60][61][62][63][64][65][66][67][68][69] where for a Hadamard matrix size of n results in 2 n number of channels. The main novelty of the proposed scheme is the reduced computational burden to generate the pulse-sequence as compared to the IFFT-based transform to generate the orthogonal vectors.…”

Section: Multiple-user Uwb Systemmentioning

confidence: 99%

Modified Hermite Pulse-Based Wideband Communication for High-Speed Data Transfer in Wireless Sensor Applications

Pradhan

Arifuzzman

et al. 2017

JLPEA

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With technological advances in the field of communication, the need for reliable high-speed data transfer is increasing. The deployment of large number of wireless sensors for remote monitoring and control and streaming of high definition video, voice and image data, etc. are imposing a challenge to the existing network bandwidth allocation for reliable communication. Two novel schemes for ultra-wide band (UWB) communication technology have been proposed in this paper with the key objective of intensifying the data rate by taking advantage of the orthogonal properties of the modified Hermite pulse (MHP). In the first scheme, a composite pulse is transmitted and in the second scheme, a sequence of multi-order orthogonal pulses is transmitted in the place of a single UWB pulse. The MHP pulses exhibit a mutually orthogonal property between different ordered pulses and due to this property, simultaneous transmission is achieved without collision in the UWB system, resulting in an increase in transmission capacity or improved bit error rate. The proposed schemes for enhanced data rate will offer high volume data monitoring, assessment, and control of wireless devices without overburdening the network bandwidth and pave the way for new platforms for future high-speed wireless sensor applications.

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BER Reduction of OFDM Based Broadband Communication Systems over Multipath Channels with Impulsive Noise

Cited by 71 publications

References 35 publications

5G-Enabled Tactile Internet

5G-Enabled Tactile Internet

Efficient Impulsive Noise Mitigation for OFDM Systems Using the Alternating Direction Method of Multipliers

Modified Hermite Pulse-Based Wideband Communication for High-Speed Data Transfer in Wireless Sensor Applications

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