Multi sub-carrier communication system and method providing improved frequency equalization performance

• Main Author: JEONG JUN-YOUNG
• Format: Patent
• Language: English
• Published: 05.07.2006
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

There is provided a multi sub-carrier communication system for providing improved performance of a frequency equalizer and a method thereof. The multi sub-carrier communication system includes a frequency equalization coefficient (vector) calculation unit that receives an equalized signal outputted from a frequency equalizer and periodically calculates a new frequency equalizer coefficient (vector) which is used to update the frequency equalizer coefficient (vector) used by the frequency equalizer. The multi sub-carrier communication system periodically updates the frequency equalization coefficient (vector) (after an initialization interval for initially estimating a channel characteristic) by periodically calculating the frequency equalization coefficient (vector) during a data receiving interval and thus, it is possible to dynamically adapt to changes of the channel characteristic over the passage of time, thereby improving performance of the frequency equalizer. Accordingly, the performance of the multi sub-carrier communication system is enhanced.