You are here: silicon.com > Resources > White Papers > Networking and Communications > Mobile and Wireless > Wireless LAN

Wireless LAN White Papers

An OFDM Based System Proposal for 4g Downlinks

Overview This paper describes an OFDM based 4G downlink for a wide area coverage and high mobility system. User data are multiplexed and OFDM modulated such that the user with the best predicted channel conditions are always using the channel. This user employs the linear modulation scheme that maximizes the spectral efficiency. The paper shows that the system obtains a sector capacity that is significantly better than current 3G systems. Various combinations of OFDM and CDMA are also discussed and it is concluded that it is difficult to motivate the significantly increased complexity of such schemes. Moreover, it also doubts that these combinations can increase spectral efficiency when predicted channel information is utilized at the transmitter.

Further White Paper Details
Publisher	Chalmers University of Technology	File Format	PDF
Date Published	September 2003
Format	White Papers
Topics	Wireless LAN, Mobile - Wireless Communications, TDMA - CDMA

Did you find this white paper useful? 2 out of 3 users found this white paper useful

Intel Case Study: Strix Systems Access/One Network

Publisher:
Intel

802.11n Access Points and Power over Ethernet: Key Considerations

Publisher:
Siemens

Practical Considerations for deploying 802.11n whitepaper

Publisher:
Siemens

Comparison of Iterative Detection Schemes for MIMO Systems With Spreading Based on OFDM

Publisher:
UniversitÃ¤t Ulm

Pseudo Random Postfix OFDM Based Modulator for Next Generation 60GHz WLANs

Publisher:
Motorola

HP hails channel scheme success

The survey, carried out with IT wholesalers in five countries, measured the returns on investment of channel partners participating in HP's Top Value PC supply-chain programme and its Air printer and scanner scheme.

Channel:
IT Director

Storage: A year in review

Its analysts predicted the European market for Storage Area Networks (SANs) would grow from $1.92bn last year to $64.11bn in 2006. IDC backed up Frost and Sullivan's bullish outlook on the storage market in June, releasing a report which predicted...

Channel:
Comment & Analysis

BT: Forget broadband, here comes Midband

We believe that by mid-2005, broadband services could be available to around 90 per cent of the country," predicted Danon. He said he believes that the existing measures BT is taking to address the broadband divide, such as its pre-registration...

Channel:
Broadband & ISPs

Devil's Advocate: Technologists don’t know best

There are some long running schemes where people collaborate to use their spare processing capacity to promote one or another compute-intensive project. Idle PC processors tempt people into proposing grand schemes.

WiMax comes to Canterbury

We will test all sorts of aspects of WiMax," said Baker, "looking at different frequencies, spectral efficiency, the real world throughput of different equipment and the true range of the cell. Baker wouldn't yet reveal the coverage and pricing of...

Smart metering set to take off

The rate of smart meter penetration is predicted to be slower in Europe than North America due to higher rates of customer churn here, said Datamonitor, which gives utilities less of an incentive to invest in a radical technology overhaul.

Channel:
LANs
Tags:
m2m,
energy,
smart metering

Live Webcast: Telecoms 2.0 - Where is telecoms heading?

In this webcast, our panel of experts will review where we are with next generation telecoms in the UK, working through the concept of 'Telecoms 2.0': - Realising the potential of Next Generation Networks - why it isn't just about the technology? - What attributes should firms be looking for in their telco partner? - Is the relationship between telco provider and customer changing? - What things need to happen to make next generation services a reality? - You say you want the supplier to change. Do you want to change too? - What is Telecoms 2.0?

Publisher:
ZDNet UK

Telecom 2.0: Mind over matter

ntl:Telewest Business believes that the role of the telco is evolving. Gone are the days when it was enough to simply focus on circuits and minutes, customers now need a far higher degree of interaction and look for suppliers who will talk business solutions with them.

Publisher:
ntl:Telewest Business

IBM Information Server Change Data Capture

In today's fast-paced world, access to real-time data has never been more important. To be successful, organizations need to be able to report and analyze corporate data quickly and easily, regardless of what applications created the data, what platform they're running on, or what database they're stored in.

Publisher:
IBM

An examination of server consolidation: the trends that can drive efficiencies and help businesses gain a competitive edge

This white paper provides a starting point for organizations contemplating server consolidation. It includes an overview of server consolidation concepts and techniques and provides guidance on methodologies. It also looks at the potential cost savings associated with server consolidation and offers information on how organizations can sustain the advantage they have gained by consolidating their servers.

Publisher:
IBM

Also on silicon.com

Site Navigation:

Wireless LAN White Papers

An OFDM Based System Proposal for 4g Downlinks

Quick Sitemap Links:

About Us

Search

Blogs

Verticals

Advertising Features

CNET Networks in Europe

CNET Networks in the United States

CNET Networks in Asia Pacific