Proceedings ArticleDOI
Effect of Phase Noise on Spectral Efficiency for Utra Long Term Evolution
Basuki Endah Priyanto,Christian Rom,C. Navarro,Troels B. Sorensen,Preben Mogensen,Ole Kiel Jensen +5 more
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TLDR
The simulation results indicate that the phase noise effect in E-UTRA downlink can be reduced by using high performance local oscillator or by placing pilots in every OFDM symbols.Abstract:
In this paper, the effects of phase noise on the spectral efficiency of the next generation of OFDM based mobile systems with channel estimation is investigated. The simulation context and parameter settings are taken from the 3GPP Evolved UTRA (E-UTRA) study item, focusing on an OFDM downlink single antenna system in 20 MHz bandwidth. Phase noise is modeled as a Wiener-Levy process and several phase noise powers are evaluated. The OFDM coherent detection method is based on Pilot Assisted Channel Estimation (PACE) with Wiener based frequency domain interpolation and second order gaussian interpolation for the time domain interpolation. The cell level spectral efficiency is also evaluated for micro and macro-cell scenarios. The simulation results indicate that the phase noise effect in E-UTRA downlink can be reduced by using high performance local oscillator or by placing pilots in every OFDM symbols.read more
Citations
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Journal ArticleDOI
A Performance Summary of the Evolved 3G (E-UTRA) for Voice Over Internet and Best Effort Traffic
Mika Rinne,Markku Kuusela,E. Tuomaala,P. Kinnunen,Istvan Z. Kovacs,Kari Pajukoski,Jussi Ojala +6 more
TL;DR: The E-UTRA spectral efficiency meets the 3GPP targets and yields impressive gains of order 2.5-3 times the well-performing HSPA reference; the VoIP capacity extends beyond 350 users in downlink and 230 users in uplink, which is a considerable increase compared with the high-speed packet-access (HSPA) reference.
Convergence of packet communications over the evolved mobile networks; signal processing and protocol performance
TL;DR: The main outcome of the thesis is the performance analysis of the LTE technology beginning from the early discoveries to the analysis of various system features and finally converging to an extensive system analysis campaign.
Proceedings ArticleDOI
Evaluation of the recent advances of the evolved 3G (E-UTRA) for the VoIP and best effort traffic scenarios
Mika Rinne,Kari Pajukoski,Markku Kuusela,Klaus I. Pedersen,Jussi Ojala,E. Tuomaala,Istvan Z. Kovacs,Haiming Wang,Per Henrik Michaelsen,Claudio Rosa,J. Michael +10 more
TL;DR: The fundamentals of the E-UTRA technology are addressed and especially its gain mechanisms are described, which are scalable to the spectral efficiency and the system performance is outlined more in general.
Proceedings ArticleDOI
Two novel noise estimation methods with low complexity for the OFDM system
TL;DR: In this article, two new noise estimation methods in the orthogonal frequency division multiplexing system, which are based on the channel estimation, are presented, and compared with the traditional method, the two new methods are effective on the calculation complexity.
References
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Phase noise in oscillators: a unifying theory and numerical methods for characterization
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Proceedings ArticleDOI
Two-dimensional pilot-symbol-aided channel estimation by Wiener filtering
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Journal ArticleDOI
Understanding the effects of phase noise in orthogonal frequency division multiplexing (OFDM)
TL;DR: This paper analyzes the performance of OFDM systems under phase noise and its dependence on the number of sub-carriers both in the presence and absence of a phase correction mechanism.
Journal ArticleDOI
On the effect of Wiener phase noise in OFDM systems
TL;DR: An accurate method to determine the error probability of an orthogonal frequency-division multiplexing (OFDM) system in the presence of phase noise is presented.
Journal ArticleDOI
OFDM systems in the presence of phase noise: consequences and solutions
Songping Wu,Yeheskel Bar-Ness +1 more
TL;DR: An exact analysis of orthogonal frequency-division multiplexing (OFDM) performance in the presence of phase noise and a general phase-noise suppression scheme which, by analytical and numerical results, proves to be quite effective in practice.