advanced
Journal Information
Journal Information
   Description
   Editorial Board
   Guide for Authors
   Ordering

Contents Services
Contents Services
   Regular Issues
   Special Issues
   Authors Index

Links
Links
   FEI STU Bratislava
   SAS Bratislava

   Feedback

[09-10, 2003] 

Journal of Electrical Engineering, Vol 54, 09-10 (2003) 269-272

A SIMPLE APPROACH TO OFDM-BASED SYSTEMS DYNAMIC OPTIMIZATION

Morena Minto - Diego Ragazzi - Luigi Agarossi - Luca Giangaspero

   Link adaptation techniques have recently emerged as a powerful tool to perform radio interface optimization, a key feature of future mobile/wireless systems allowing to dynamically find the best trade-off among high throughput, QoS and low power. In this framework a reduced-complexity algorithm for fast, joint optimization of OFDM indoor wireless systems operating in frequency selective environments, is proposed. Based on the sub-carrier switching concept and the channel state information, the algorithm dynamically selects the transmission parameters, as far as modulation and channel coding are concerned, that guarantee the required QoS (bit rate and BER) with the minimum transmission power. The algorithm is handled by a "Supervisor" unit, which is the unit responsible for real-time information processing and control in any adaptive and/or re-configurable transceiver.

Keywords: radio interface optimization, mobile/wireless systems


[full-paper]


© 1997-2019  FEI STU Bratislava