Four Single-Sideband M-QAM Modulation using Soft Input Soft Output Equalizer over OFDM

Alhasani M. Mustafa, Quang N. Nguyen, Takuro Sato, Gen Ichhiro Ohta

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

The Single Sideband (SSB) modulation through Hilbert transformation has successfully transmitted data using only half bandwidth for the same amount of contained information. Towards this line, the Four Single SideBand (4-SSB) using QPSK modulation over OFDM was proposed as a new applicable modulation for the next generation communication system, such as 5G. This approach can improve the network efficiency, however, the InterSymbol Interference (ISI) is substantially introduced in 4-SSB based modulation due to the wireless channel characteristics, especially when we are increasing the order of modulation. Particularly, the Widely Linear Minimum Mean Squared Error (MMSE) equalizer is impractical in high order modulation because of its high performance degradation. In this paper, we propose a 4-SSB M-QAM over OFDM approach to improve the modulation feasibility and data rate, compared to the previous 4-SSB using QPSK over OFDM. The proposal uses the Infinite Length MMSE Soft Input Soft Output (SISO) equalizer to deal with ISI induced by the Finite Impulse Response (FIR) of the Hilbert transform filter. The evaluation results show that the proposed 4-SSB-based modulation technique using MMSE SISO equalizer can considerably reduce the effect of ISI in non-ideal environments, including the Additive White Gaussian Noise (AWGN) and fading channel.

本文言語English
ホスト出版物のタイトル2018 28th International Telecommunication Networks and Applications Conference, ITNAC 2018
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781538671771
DOI
出版ステータスPublished - 2019 1月 16
イベント28th International Telecommunication Networks and Applications Conference, ITNAC 2018 - Sydney, Australia
継続期間: 2018 11月 212018 11月 23

出版物シリーズ

名前2018 28th International Telecommunication Networks and Applications Conference, ITNAC 2018

Conference

Conference28th International Telecommunication Networks and Applications Conference, ITNAC 2018
国/地域Australia
CitySydney
Period18/11/2118/11/23

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • ハードウェアとアーキテクチャ
  • ソフトウェア
  • 安全性、リスク、信頼性、品質管理

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