Modems White Papers

Practical Approaches to Channel Estimation and Interference Suppression for OFDM Based UWB Communications

Overview Ultra-wideband (UWB) communication is a potential technique for future high-speed networks. This paper investigates low complexity signal detection approaches for OFDM based UWB systems. In particular, authors develop practical approaches for channel estimation and interference suppression. Computer simulation results show that these techniques can be effectively used in OFDM based UWB systems for performance improvement.

Further White Paper Details
PublisherMitsubishi File FormatPDF, requires Acrobat Rdr 5
Date PublishedApril 2004 Downloads23
FormatWhite Papers   
Topics

Mutual Interference in OFDM-Based Spectrum Pooling Systems

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Design and Simulation of Orthogonal Frequency Division Multiplexing (OFDM) Signaling

A MATLAB program has been written to investigate Orthogonal Frequency Division Multiplexing (OFDM) communication systems. This program is valuable for future researchers simulating systems that are too theoretically complex to...

V.92 The Next Generation Modem Technology

The paper discusses the features and benefits of V.92. As with any new standard, multi-vendor interoperability is critical to help accelerate deployment of standards-based equipment. Lucent’s V.92 solution inter-operates with...

Effect of Rounding and Saturation in Fixed-Point DSP Implementation of IFFT and FFT for OFDM Applications

This paper describes a new technique for designing FFTs for Orthogonal Frequency Division Multiplex (OFDM) transmitters and receivers. Using the new technique, signals within the FFT structure are scaled so...

Optimum Noise Thresholds in Decision Directed Impulse Noise Mitigation for OFDM

Impulse noise is a significant problem in some OFDM applications including digital television broadcasting. This paper studies the optimum threshold values for a novel decision directed impulse noise mitigation algorithm....

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