Fast-decodable MIMO HARQ systems

Name: Fast-decodable MIMO HARQ systems
Author: Hosseini, S. S., Abouei, J., Uysal, Murat

İsim	Fast-decodable MIMO HARQ systems
Yazar	Hosseini, S. S., Abouei, J., Uysal, Murat
Basım Tarihi:	2015-05
Basım Yeri	- IEEE
Konu	MIMO communication, Adaptive codes, Automatic repeat request, Computational complexity, Decoding, Protocols, Space-time block codes
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1536-1276
Kayıt Numarası	c357b6e3-2222-4b99-95ba-ff2d7dc30953
Lokasyon	Electrical & Electronics Engineering
Tarih	2015-05
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	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-decodable MIMO 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.
DOI	10.1109/TWC.2015.2395411
Cilt	14

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Fast-decodable MIMO HARQ systems

Yazar Hosseini, S. S., Abouei, J., Uysal, Murat

Basım Tarihi 2015-05

Basım Yeri - IEEE

Konu MIMO communication, Adaptive codes, Automatic repeat request, Computational complexity, Decoding, Protocols, Space-time block codes

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1536-1276

Kayıt Numarası c357b6e3-2222-4b99-95ba-ff2d7dc30953

Lokasyon Electrical & Electronics Engineering

Tarih 2015-05

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin 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-decodable MIMO 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.

DOI 10.1109/TWC.2015.2395411

Cilt 14