Soft information relaying with transceiver hardware impairments in cognitive networks

Dang Khoa Nguyen, Dushantha Nalin K. Jayakody, Hiroshi Ochi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

This paper demonstrates the impact of transceiver impairments on channel capacity and bit-error-rate (BER) performance of a dual-hop half-duplex cognitive relay network over AWGN channel. We consider the soft-information-relaying (SIR) protocol where the relay node computes the reliabilities (soft) of the received signal from source and then forwards to the destination. The hardware impairment model of the received signal via AWGN channel is first introduced. The analysis on capacity and BER performance are then presented for the network with binary phase shift keying (BPSK) modulation. Furthermore, the impacts of hardware impairments on BER are quantified for the network with SIR and hard decode-and-forward (DF) protocol. The simulation results on channel capacity of the network with SIR protocol acknowledge the ceiling capacity of the realistic transceivers that can not be exceeded by increasing transmit power. Moreover, we found that the BER performance of SIR network with the worst hardware impairment level in 3GPP LTE requirements is on par with the best transceiver level of the network with hard DF. This concludes that the SIR outperforms the hard DF on limit the impact of hardware impairments on BER performance.

Original languageEnglish
Title of host publication2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467372183
DOIs
Publication statusPublished - 26 Apr 2016
Externally publishedYes
Event10th International Conference on Information, Communications and Signal Processing, ICICS 2015 - Singapore, Singapore
Duration: 2 Dec 20154 Dec 2015

Conference

Conference10th International Conference on Information, Communications and Signal Processing, ICICS 2015
CountrySingapore
CitySingapore
Period2.12.154.12.15

Fingerprint

Transceivers
Bit error rate
Hardware
Channel capacity
Binary phase shift keying
Ceilings
Modulation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Signal Processing

Cite this

Nguyen, D. K., Jayakody, D. N. K., & Ochi, H. (2016). Soft information relaying with transceiver hardware impairments in cognitive networks. In 2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015 [7459913] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICICS.2015.7459913

Soft information relaying with transceiver hardware impairments in cognitive networks. / Nguyen, Dang Khoa; Jayakody, Dushantha Nalin K.; Ochi, Hiroshi.

2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015. Institute of Electrical and Electronics Engineers Inc., 2016. 7459913.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nguyen, DK, Jayakody, DNK & Ochi, H 2016, Soft information relaying with transceiver hardware impairments in cognitive networks. in 2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015., 7459913, Institute of Electrical and Electronics Engineers Inc., 10th International Conference on Information, Communications and Signal Processing, ICICS 2015, Singapore, Singapore, 2.12.15. https://doi.org/10.1109/ICICS.2015.7459913
Nguyen DK, Jayakody DNK, Ochi H. Soft information relaying with transceiver hardware impairments in cognitive networks. In 2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015. Institute of Electrical and Electronics Engineers Inc. 2016. 7459913 https://doi.org/10.1109/ICICS.2015.7459913
Nguyen, Dang Khoa ; Jayakody, Dushantha Nalin K. ; Ochi, Hiroshi. / Soft information relaying with transceiver hardware impairments in cognitive networks. 2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015. Institute of Electrical and Electronics Engineers Inc., 2016.
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