You are here: silicon.com > Resources > White Papers > Desktops, Laptops and OS > Components > Modems

Modems White Papers

Optimum Noise Thresholds in Decision Directed Impulse Noise Mitigation for OFDM

Overview 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. In this algorithm the noise component in each received input sample is estimated based on preliminary decisions on the transmitted data. When the noise estimate if above a given threshold, it indicates that impulse noise is present in the sample and the estimated noise component is subtracted from the input sample before final demodulation. In this paper the optimum threshold levels for varying impulse noise parameters are calculated.

Further White Paper Details
Publisher	La Trobe University	File Format	PDF, requires Acrobat Rdr 5
Date Published	May 2004	Downloads	17
Format	White Papers
Topics	Modems

Did you find this white paper useful? 1 out of 3 users found this white paper useful

Extended Loops for Distant Phones and Fax Machines, Higher Ringing Voltage and Loop Current

Publisher:
Cisco Systems

Tags:
voip - ip telephony

Palm & Treo Hacks: Use Your Treo as a Modem

Publisher:
O'Reilly Media

Noncoherent Space-Frequency Coded MIMO-OFDM

Publisher:
Institute of Electrical and Electronics Engineers

HomePlug 1.0: Technology White Paper

Publisher:
HomePlug Powerline Alliance

Point-to-Point Broadband Wireless for the Enterprise: Licensed Performance in the Unlicensed Band

Publisher:
Orthogon Systems

Peter Cochrane's Uncommon Sense: Forget 'think different' - think 'non-linear'...

The energy output varies in direct proportion to the energy input given the losses due to frictional heating and noise. When all were linked together to constitute the whole drive chain, it would indeed be optimum, providing a few issues of energy...

Meta Group Quarterly: CIOs planning properly

There will be new valuation attributes, analysis techniques and overall performance threshold criteria enabling organisations to know when to stop, maintain and accelerate investment decisions much earlier in an entity's life cycle.

Channel:
IT Director

Meta Group Quarterly: What CIOs need to succeed

Meta Group noted that 65 per cent of project managers estimate schedules with a predetermined deadline (that is, dictated by the customer), leading to an immediate mismatch between planned and realistic delivery dates.

The Ovum View: Speech - IT meets telephony?

Speech input and output to IT systems has passed the credibility threshold. In addition to their economy, embedded systems have some advantages over server-based systems, such as responding to, and compensating for, the noise level in the user's...

Channel:
Comment & Analysis

CRM: it's what you do with it that counts

Many of the 50 sample companies - which included giants such as Eastman Kodak and Sprint - are not using datawarehouses properly for meaningful analysis, and few are exploiting applications that allow proper collaboration with customers, the Meta...

Channel:
Comment & Analysis

The Ovum View: The wireless LAN security nightmare

The authors of the 802.11 standard selected the WEP (Wireless Equivalent Privacy) algorithm to provide encryption within the available resources of low powered mobile devices. The range of possible concerns spans eavesdropping on confidential...

Channel:
Comment & Analysis

Featured White Papers

IDC reports on Novell's Secure Desktop Solution: A Modern-Day Marriage of Business Benefit and Risk Reduction

This IDC whitepaper examines how companies are turning to integrated security solutions, such as Novell Secure Desktop Solution, to deal with the vulnerability of mobile assets and implement a comprehensive security strategy.

Publisher:
Novell

Green IT: Reducing your Carbon Footprint with Citrix

Going green has become an imperative, not an option, for companies facing the new reality of balancing business objectives with dwindling environmental resources. Read on to learn how Citrix products can help bring environmental and organizational objectives into alignment by alleviating the energy impact of equipment needed to serve both the datacenter and the desktop.

Publisher:
Citrix Systems

Identity and Security Management and Strong Information Technology Goverance

A total identity and access management (IAM) – driven goverance, risk and compliance (GRC) solution should ensure foolproof and accurate measurements of policies and practises across the enterprise. This IDC white paper examines identity and security management (ISM) solutions and how these integrated offerings can play a key role in enforcing security compliance.

Publisher:
Novell

Also on silicon.com

Site Navigation:

Modems White Papers

Optimum Noise Thresholds in Decision Directed Impulse Noise Mitigation for OFDM

Quick Sitemap Links:

About Us

Search

Blogs

Verticals

CNET Networks in Europe

CNET Networks in the United States

CNET Networks in Asia Pacific