Low Complexity Soft Decision Technique for Gray Mapping Modulation

Low Complexity Soft Decision Technique for Gray Mapping Modulation

High order Gray mapping modulation has been widely used in wireless communications, but the traditional soft decision technique via the log-sum approximation is of high computational complexity. In this paper, a low complexity soft decision technique is proposed for popular Gray mapping modulation s...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Wireless personal communications 2010-01, Vol.52 (2), p.383-392
Hauptverfasser: Lin, Dengsheng, Xiao, Yue, Li, Shaoqian
Format: Artikel
Sprache:eng
Schlagworte:
Communications Engineering
Computer Communication Networks
Engineering
Networks
Signal,Image and Speech Processing
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:High order Gray mapping modulation has been widely used in wireless communications, but the traditional soft decision technique via the log-sum approximation is of high computational complexity. In this paper, a low complexity soft decision technique is proposed for popular Gray mapping modulation schemes, including M -PAM, M -PSK and square M -QAM. Compared with the traditional log-sum approximation, the proposed technique can effectively reduce the computational complexity without any performance degradation.
ISSN:0929-6212
1572-834X
DOI:10.1007/s11277-008-9654-3