Paper Info
Title
Performance of circular QAM constellations with time varying phase noise
Abstract
Time varying phase noise is a limiting factor in highspeed wireless communication systems, e.g., microwave backhaul links in cellular networks. This paper seeks to investigate the performance of circular M-ary quadrature amplitude modulations (M-QAMs) in the presence of time varying phase noise. A new approximate union bound expression for the symbol-error probability (SEP) of a specific circular M-QAM constellation is derived. Numerical results show that this expression is accurate at medium-to-high signal-to-noise ratios (SNRs) for different constellation orders, M. Next, exact closed-form expressions for the SEP of binary phase shift keying (BPSK) and quadrature phase shift keying (QPSK) modulations in the presence of phase noise are derived. Extensive simulations are carried out to compare the performance of rectangular and circular QAM modulations in the presence of time varying phase noise, where it is demonstrated that circular QAM modulations can outperform their rectangular counterparts when considering the effect of time varying phase noise.
Year
DOI
Venue
2012
10.1109/PIMRC.2012.6362752
Personal Indoor and Mobile Radio Communications
Keywords
Field
DocType
approximation theory,cellular radio,error statistics,phase noise,quadrature amplitude modulation,quadrature phase shift keying,BPSK modulations,QPSK modulations,SEP,SNR,approximate union bound expression,binary phase shift keying modulations,cellular networks,circular M-QAM constellation,circular M-ary quadrature amplitude modulations,closed-form expressions,high-speed wireless communication systems,microwave backhaul links,quadrature phase shift keying modulations,rectangular counterparts,signal-to-noise ratios,symbol-error probability,time varying phase noise
Topology,Quadrature amplitude modulation,Telecommunications,QAM,Phase noise,Approximation theory,Real-time computing,Quadrature (mathematics),Amplitude,Mathematics,Modulation (music),Phase-shift keying
Conference
ISSN
ISBN
Citations 
2166-9570 E-ISBN : 978-1-4673-2568-4
978-1-4673-2568-4
3
PageRank 
References 
Authors
0.47
6
3
Name
Order
Citations
PageRank
M. Assad Tariq130.47
Hani Mehrpouyan226827.93
Tommy Svensson3104876.22