Iterative Suboptimal Maximum Likelihood Receiver for Nonlinearly Distorted SC-FDMA Symbols
-
Juraj Gazda
,
Marc Deumal
Abstract
Single Carrier Frequency Division Multiple Access (SC-FDMA) is the modulation scheme being employed in the uplink of Long Term Evolution (LTE) and will also be employed in the upcoming fourth generation (4G) system LTE Advanced. The main advantage of using SC-FDMA in the uplink in opposite to the traditional orthogonal frequency division multiple access (OFDM) is its lower sensitivity to nonlinear amplification. Nevertheless, the strict requirements of 4G systems suggest that techniques to reduce sensitivity even further should be introduced. In this paper, we evaluate the effect of nonlinearities in SC-FDMA and present an iterative receiver scheme to reduce the error probability of SC-FDMA systems undergoing nonlinear amplification. The technique consists in successive estimation and compensation of both the nonlinear distortion and the non-constant attenuation and rotation introduced by the transmitter high power amplifier (HPA). Simulation results expressed by the bit error rate (BER), the error vector magnitude (EVM) and the total degradation (TD) show that the proposed iterative receiver provides a significant performance improvement.
Copyright © 2011 De Gruyter
Articles in the same Issue
- Modal Ellipticity Characterization of Thermally Expanded Core Polarization Maintaining Optical Fibers
- Intra-channel Fiber Nonlinearity Mitigation Based on DBP in Single Channel and WDM Coherent Optical Transmission Systems Using Different Pulse Shapes
- Performance Analysis of Amplify-and-Forward Relaying over Shadowed Nakagami-m Fading Channels
- Performance Analysis of SSC/SC Combiner at Two Time Instants in the Presence of Rayleigh Fading
- Iterative Suboptimal Maximum Likelihood Receiver for Nonlinearly Distorted SC-FDMA Symbols
- Discrete-time Queuing Analysis of Opportunistic Spectrum Access: Single User Case
- Multi-Domain Cognition for Cognitive Wireless Networks
- Reliable Multicast MAC Protocol for IEEE 802.11 Wireless LANs with Extended Service Range
Articles in the same Issue
- Modal Ellipticity Characterization of Thermally Expanded Core Polarization Maintaining Optical Fibers
- Intra-channel Fiber Nonlinearity Mitigation Based on DBP in Single Channel and WDM Coherent Optical Transmission Systems Using Different Pulse Shapes
- Performance Analysis of Amplify-and-Forward Relaying over Shadowed Nakagami-m Fading Channels
- Performance Analysis of SSC/SC Combiner at Two Time Instants in the Presence of Rayleigh Fading
- Iterative Suboptimal Maximum Likelihood Receiver for Nonlinearly Distorted SC-FDMA Symbols
- Discrete-time Queuing Analysis of Opportunistic Spectrum Access: Single User Case
- Multi-Domain Cognition for Cognitive Wireless Networks
- Reliable Multicast MAC Protocol for IEEE 802.11 Wireless LANs with Extended Service Range
