Fast-decodable MIMO HARQ systems

Seyyed Saleh Hosseini; Jamshid Abouei; Murat Uysal

doi:10.1109/TWC.2015.2395411

Fast-decodable MIMO HARQ systems

Seyyed Saleh Hosseini, Jamshid Abouei, Murat Uysal

Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This paper presents a comprehensive study on the problem of decoding complexity in a Multi-Input Multi-Output (MIMO) Hybrid Automatic Repeat reQuest (HARQ) system based on Space-Time Block Codes (STBCs).We show that there exist two classes of fast-decodableMIMO HARQ systems: independent and dependent STBC structures. For the independent class, two types of protocols namely, fixed and adaptive threshold-based are presented and their effectiveness in both computational complexity reduction and spectral efficiency preservation are discussed. For the dependent class, a fast Sphere Decoder (SD) algorithm with a low computational complexity is proposed for decoding process of HARQ rounds. Two new concepts are introduced to leverage the fast-decodable notion in MIMO HARQ systems. Simulation results show that the proposed fast-decodable MIMO HARQ protocols in both classes provide a significant reduction in the decoding complexity as compared with the original MIMO HARQ method.

Original language	English (US)
Article number	7018101
Pages (from-to)	2827-2840
Number of pages	14
Journal	IEEE Transactions on Wireless Communications
Volume	14
Issue number	5
DOIs	https://doi.org/10.1109/TWC.2015.2395411
State	Published - May 1 2015

Keywords

Fast-decodable
Hybrid automatic repeat request (HARQ) systems
Multi-Input Multi-Output (MIMO)
Space-Time Block Codes (STBCs)
Sphere Decoder (SD) algorithm

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

Access to Document

10.1109/TWC.2015.2395411

Cite this

@article{289f23b2289549848349b0a9cdcd871e,

title = "Fast-decodable MIMO HARQ systems",

abstract = "This paper presents a comprehensive study on the problem of decoding complexity in a Multi-Input Multi-Output (MIMO) Hybrid Automatic Repeat reQuest (HARQ) system based on Space-Time Block Codes (STBCs).We show that there exist two classes of fast-decodableMIMO HARQ systems: independent and dependent STBC structures. For the independent class, two types of protocols namely, fixed and adaptive threshold-based are presented and their effectiveness in both computational complexity reduction and spectral efficiency preservation are discussed. For the dependent class, a fast Sphere Decoder (SD) algorithm with a low computational complexity is proposed for decoding process of HARQ rounds. Two new concepts are introduced to leverage the fast-decodable notion in MIMO HARQ systems. Simulation results show that the proposed fast-decodable MIMO HARQ protocols in both classes provide a significant reduction in the decoding complexity as compared with the original MIMO HARQ method.",

keywords = "Fast-decodable, Hybrid automatic repeat request (HARQ) systems, Multi-Input Multi-Output (MIMO), Space-Time Block Codes (STBCs), Sphere Decoder (SD) algorithm",

author = "Hosseini, {Seyyed Saleh} and Jamshid Abouei and Murat Uysal",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.",

year = "2015",

month = may,

day = "1",

doi = "10.1109/TWC.2015.2395411",

language = "English (US)",

volume = "14",

pages = "2827--2840",

journal = "IEEE Transactions on Wireless Communications",

issn = "1536-1276",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "5",

}

TY - JOUR

T1 - Fast-decodable MIMO HARQ systems

AU - Hosseini, Seyyed Saleh

AU - Abouei, Jamshid

AU - Uysal, Murat

PY - 2015/5/1

Y1 - 2015/5/1

N2 - This paper presents a comprehensive study on the problem of decoding complexity in a Multi-Input Multi-Output (MIMO) Hybrid Automatic Repeat reQuest (HARQ) system based on Space-Time Block Codes (STBCs).We show that there exist two classes of fast-decodableMIMO HARQ systems: independent and dependent STBC structures. For the independent class, two types of protocols namely, fixed and adaptive threshold-based are presented and their effectiveness in both computational complexity reduction and spectral efficiency preservation are discussed. For the dependent class, a fast Sphere Decoder (SD) algorithm with a low computational complexity is proposed for decoding process of HARQ rounds. Two new concepts are introduced to leverage the fast-decodable notion in MIMO HARQ systems. Simulation results show that the proposed fast-decodable MIMO HARQ protocols in both classes provide a significant reduction in the decoding complexity as compared with the original MIMO HARQ method.

AB - This paper presents a comprehensive study on the problem of decoding complexity in a Multi-Input Multi-Output (MIMO) Hybrid Automatic Repeat reQuest (HARQ) system based on Space-Time Block Codes (STBCs).We show that there exist two classes of fast-decodableMIMO HARQ systems: independent and dependent STBC structures. For the independent class, two types of protocols namely, fixed and adaptive threshold-based are presented and their effectiveness in both computational complexity reduction and spectral efficiency preservation are discussed. For the dependent class, a fast Sphere Decoder (SD) algorithm with a low computational complexity is proposed for decoding process of HARQ rounds. Two new concepts are introduced to leverage the fast-decodable notion in MIMO HARQ systems. Simulation results show that the proposed fast-decodable MIMO HARQ protocols in both classes provide a significant reduction in the decoding complexity as compared with the original MIMO HARQ method.

KW - Fast-decodable

KW - Hybrid automatic repeat request (HARQ) systems

KW - Multi-Input Multi-Output (MIMO)

KW - Space-Time Block Codes (STBCs)

KW - Sphere Decoder (SD) algorithm

UR - http://www.scopus.com/inward/record.url?scp=84929346756&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84929346756&partnerID=8YFLogxK

U2 - 10.1109/TWC.2015.2395411

DO - 10.1109/TWC.2015.2395411

M3 - Article

AN - SCOPUS:84929346756

SN - 1536-1276

VL - 14

SP - 2827

EP - 2840

JO - IEEE Transactions on Wireless Communications

JF - IEEE Transactions on Wireless Communications

IS - 5

M1 - 7018101

ER -

Fast-decodable MIMO HARQ systems

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this