On TechRepublic: Why Linux will triumph over Windows
BNET Business Network:
BNET
TechRepublic
ZDNet

FREE Registration is required

Overview:

This paper develops linear precoding schemes for the downlink in multiuser Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems with multiple data streams per user. The authors extend an existing multiuser MIMO algorithm, that jointly optimizes the power allocation and the transmit and receive filters, to MIMOOFDM systems. One extension is to solve the resulting problem of joint power allocation across OFDM subcarriers. This paper also presents efficient methods to reduce the computational load of the algorithm by interpolating the precoding and decoding matrices corresponding to different OFDM subcarriers. The simulations show that the proposed interpolation scheme outperforms previously known schemes, but requires that the precoder for each subcarrier be tailored to the interpolated receiver.

(Is this item miscategorized? Does it need more tags? Let us know.)

Format:PDFSize:159 KB
Date:Sep 2006
Pages:6

People who downloaded this item also downloaded

White Paper Delay Analysis and Comparison of OFDM-TDMA and OFDMA Under IEEE 802.16 QoS Framework
White Paper Optimal Scheduling for OFDMA Systems
White Paper On the Use of Adaptive Loading Algorithms in MIMO-OFDM Systems
White Paper Orthogonal Frequency Division Multiplexing for Wireless Communications
White Paper Adaptive Channel SVD Estimation for MIMO-OFDM Systems

Top results from Wireless LAN

White Paper Conducting a WLAN Site Survey and Implementation for the Cisco Unified Wireless Network
White Paper WPA2 Security: Choosing the Right WLAN Authentication Method for Homes and Enterprises
White Paper Choosing the Right Analyzer for Your WLAN
White Paper Sales Compensation & Performance Management 2009 Survey Results and Analysis
White Paper Exploring Wireless Technologies

» View all Wireless LAN listings

advertisement

White Papers, Webcasts, and Resources

Featured Training Courses

advertisement

Meet Doc

  • Here to help you with your Document Management Needs
  • Doc is an enigma. Born to a Russian ballerina and a German electrical engineer, he grew up in various locations in the United States. He’s seen the insides of more brands, versions, and generations of printer and printer-related hardware than almost anyone.
  • To learn more about this mysterious figure check out his blog on ZDNet and his Workspace on TechRepublic. You’ll be glad you did.
  • Produced by
    ZDNet and

Returning users: Log In Here!

Already registered on BNET, TechRepublic, or ZDNet? Simply log in.

Free Membership: Sign Up Now!

Sign up for a free membership today and get instant and unlimited access to one of the largest databases of white papers, webcasts, and casestudies anywhere. Your FREE membership allows you to:

  • Download an unlimited amount of content, including classic and current white papers, case studies, webcasts and more
  • Track content on your chosen topics of interest
  • Receive targeted email alerts when your favorite content is added
  • Save content for future reading
  • Receive our member newsletter

When you register to access this library, you allow us to share your information with companies that produce products or services featured in the library--so that such companies may contact you with information and offers regarding their products and services. This enables us to keep the library a free service. As a library registrant, you will receive a complimentary subscription to the ZDNet white paper newsletter and e-mail Must-Read News Alerts. You can unsubscribe from these at any time. By clicking the Sign up button, you indicate that you agree to our Terms and Conditions and have read and understand our Privacy Policy (updated).