Capacity enhancement in K shaped sphere decoders for various QAM Modulations

Priyanka Mishra, Prabhat Thakur, G. Singh, Hashim Uledi Iddi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

The main aim of the physical layer is to boost the data rates over wireless channel with better quality of services (QOS), thereby, increasing the efficiency and reliability of new generation wireless communication systems especially 5G/6G system. Performance of various space time block codes like quasi orthogonal space time block codes and rotational quasi orthogonal space time block codes is investigated using various decoding algorithms like Sphere Decoder, K 1, K 2, K 3, K 4 Sphere decoders. The Sphere Decoder has been modified in terms of K detection algorithms based on spectral efficiency. Different modulations are used to validate the analytic analysis. Simulations are performed in MATLAB software and the results obtained shows the significant incremented spectral efficiency.

Original languageEnglish
Title of host publicationProceedings of 2021 IEEE AFRICON, AFRICON 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665419840
DOIs
Publication statusPublished - 13 Sept 2021
Event2021 IEEE AFRICON, AFRICON 2021 - Virtual, Arusha, Tanzania, United Republic of
Duration: 13 Sept 202115 Sept 2021

Publication series

NameIEEE AFRICON Conference
Volume2021-September
ISSN (Print)2153-0025
ISSN (Electronic)2153-0033

Conference

Conference2021 IEEE AFRICON, AFRICON 2021
Country/TerritoryTanzania, United Republic of
CityVirtual, Arusha
Period13/09/2115/09/21

Keywords

  • K best Algorithm
  • Orthogonal Space time block Codes (OSTBC)
  • QAM and OQAM (Offset QAM)
  • Rotated Quasi Orthogonal Space time block codes (RQOSTBC)
  • Sphere Decoder (SD)

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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