Title :
Precoding-based initial ranging signal for SMUD algorithm in OFDMA systems
Author :
Yujie Xia ; Guangliang Ren
Abstract :
A novel precoding-based initial ranging signal is presented for the successive multiuser detection and interference cancellation (SMUD) algorithm in OFDMA uplink systems. The ranging codes in the multiple ranging symbols are coded by the precoding matrix. The performance of the SMUD algorithm is greatly improved by using the decoded signal of the received precoded ranging signal.
Keywords :
OFDM modulation; decoding; frequency division multiple access; interference suppression; multiuser detection; precoding; OFDMA systems; OFDMA uplink systems; SMUD algorithm; decoded signal; interference cancellation algorithm; multiple ranging symbols; multiuser detection; precoding matrix; precoding-based initial ranging signal; ranging codes; received precoded ranging signal;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.1395
