Modems White Papers

Implementation of a MIMO OFDM Based Wireless LAN System

Overview The combination of Multiple-Input Multiple-Output (MIMO) signal processing with Orthogonal Frequency Division Multiplexing (OFDM) is regarded as a promising solution for enhancing the data rates of next generation wireless communication systems operating in frequency-selective fading environments. To realize this extension of OFDM with MIMO, a number of changes are required in the baseband signal processing. An overview is given of the necessary changes, including time and frequency synchronization, channel estimation, synchronization tracking and MIMO detection.

Further White Paper Details
PublisherTechnical University of Eindhoven File FormatPDF
Date PublishedJune 2003 Downloads16
FormatWhite Papers   
Topics

Mutual Interference in OFDM-Based Spectrum Pooling Systems

Public mobile radio spectrum has become a scarce resource while wide spectral ranges are only rarely used. Here, a new strategy called spectrum pooling is considered. It aims at enabling...

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. LucentÂ’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....

  • Featured White Papers
Childnet helps parents get web savvy

Childnet helps parents get web savvy

Case study: Gov't initiative to bridge digital divide more

Travel site bookings fly when glitch fixed

Travel site bookings fly when glitch fixed

Case study: Testing software gives Thomson Holidays a boost more

Cheat Sheet: BBC iPlayer

Cheat Sheet: BBC iPlayer

Get the lowdown on Auntie's biggest online endeavour more


Quick Sitemap Links: