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OFDM-CDM Performance Enhancement by Combining H-ARQ and Interference Cancellation

Arkhipov, Alexander and Raulefs, Ronald and Schnell, Michael (2006) OFDM-CDM Performance Enhancement by Combining H-ARQ and Interference Cancellation. IEEE Journal on Selected Areas in Communications, Vol. 2 (No. 6), pp. 1199-1207.

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Abstract

In this paper, superimposed packet allocation for orthogonal frequency-division multiple-access code-division multiplexing (OFDMA-CDM) is presented, where each transmitted packet is associated with one spreading code. An iterative algorithm which is a combination of parallel interference cancellation (PIC) and hybrid automatic repeat request (H-ARQ) based on soft value combining (SVC) is proposed, and its performance is studied and compared with other existing H-ARQ schemes. The proposed algorithm exploits the reliability information of erroneously received copies of the same data packet to improve the performance of interference cancellation. The interference of correctly received packets is ideally reconstructed and subtracted. Thus, the overall system performance improves iteratively. As a result, the proposed algorithm outperforms conventional H-ARQ based on SVC as well as H-ARQ based on maximum ratio combining (MRC).

Document Type:Article
Title:OFDM-CDM Performance Enhancement by Combining H-ARQ and Interference Cancellation
Authors:
AuthorsInstitution or Email of Authors
Arkhipov, AlexanderUNSPECIFIED
Raulefs, RonaldUNSPECIFIED
Schnell, MichaelUNSPECIFIED
Date:June 2006
Journal or Publication Title:IEEE Journal on Selected Areas in Communications
Volume:Vol. 2
Page Range:pp. 1199-1207
Status:Published
Keywords:Automatic repeat request, interference supression
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:ATM and Operation
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Effiziente Flugführung und Flugbetrieb (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation
Deposited By: Alexander Arkhipov
Deposited On:09 Oct 2006
Last Modified:12 Dec 2013 20:21

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