method orthogonal frequency division
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Interpolation Based Unitary Precoding for Spatial Multiplexing MIMO-OFDM With Limited Feedback
White Paper Spatial multiplexing with linear precoding is a simple technique to take advantage of the high spectral efficiency provided by multiple-input multiple-output (MIMO) systems, and it can be simply implemented over... [10 Apr 2008]
Robust Timing Synchronization for OFDM Based Wireless LAN System
White Paper The proposed method does frame detection using a threshold comparison mechanism and performs Orthogonal Frequency Division Multiplexing (OFDM) symbol boundary detection... [10 Apr 2008]
Performance of Space-Combining Transmission Diversity With OFDM for Broadband Wireless Access Systems
White Paper This paper proposes a new diversity technique for broadband wireless access systems that uses orthogonal frequency division multiplexing (OFDM) and describes its performance. In... [10 Apr 2008]
Inter-Carrier Interference Cancellation for OFDM Systems
White Paper Orthogonal Frequency Division Multiplexing (OFDM) is an emerging multi-carrier modulation scheme, which has been adopted for several wireless standards such as IEEE 802.11a and... [27 Jul 2007]
Eliminating the OFDM Cyclic Prefix
White Paper A novel method is presented to estimate the frame time and carrier frequency offset in Orthogonal Frequency-Division Multiplexing (OFDM) systems using a... [18 Apr 2007]
Integer-Based Constellation Shaping Method for PAPR Reduction in OFDM Systems
White Paper In this paper, the problem of reducing the Peak to Average Power Ratio (PAPR) in an Orthogonal Frequency Division Multiplexing (OFDM) system is considered. The encoding... [18 Apr 2007]
Multiuser Detection and Channel Estimation in MIMO OFDM Systems Via Blind Source Separation
White Paper This paper proposes a blind multiuser detection and channel estimation method for Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency-Division Multiplexing (OFDM)... [18 Apr 2007]
Bandwidth and Power Efficiency Considerations for Optimal Training in OFDM
White Paper Orthogonal Frequency Division Multiplexing (OFDM) has been adopted by many high speed transmission standards. To improve the power efficiency, the authors employ a blind SeLected Mapping... [18 Apr 2007]
An Efficient Frequency Offset Estimator for OFDM Systems and Its Performance Characteristics
White Paper This paper proposes new frequency synchronization algorithm for Orthogonal Frequency Division Multiplexing (OFDM) systems requiring only one training symbol, based on a... [14 Apr 2007]
Blind and Semiblind Spatio-Temporal Diversity for OFDM Systems
White Paper Adaptive antenna arrays can be used to improve the performance of Orthogonal Frequency Division Multiplexing systems. A blind method is firstly proposed for the... [14 Apr 2007]
New Frame Synchronization Technique for OFDM/OFDMA and MC-CDMA Systems
White Paper In the context of Orthogonal Frequency Division Multiplexing (OFDM), most papers define OFDM symbol synchronization as frame synchronization. The main contribution of this work is to... [14 Apr 2007]
On the Design of Robust Multiband OFDM Ultra-Wideband Receivers
White Paper This paper analyzes the effects of NarrowBand Interferences (NBI) on the performance of a Multi-Band Orthogonal Frequency Division Multiplexing (MB-OFDM) Ultra-WideBand (UWB) receiver... [13 Apr 2007]
Doppler Spread Estimation for Wireless OFDM Systems
White Paper This paper presents a method for estimating the Doppler spread in mobile Orthogonal Frequency Division Multiplexing (OFDM) systems. In OFDM systems channel estimation is... [13 Apr 2007]
Reconfigurable Antenna Solution for MIMO-OFDM Systems
White Paper A reconfigurable microstrip dipole antenna solution for Multiple Input Multiple Output (MIMO) communication systems making use of Orthogonal Frequency Division Multiplexing (OFDM) is... [13 Apr 2007]
MMSE Noise Power and SNR Estimation for OFDM Systems
White Paper This paper proposes a Minimum Mean-Square Error (MMSE) filtering technique to estimate the noise power that takes into account the variation of the noise statistics across the Orthogonal Frequency... [13 Apr 2007]
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