TY - GEN

T1 - Polynomial prediction RLS channel estimation for DS-CDMA frequency-domain equalization

AU - Kojima, Yohei

AU - Takeda, Kazuki

AU - Adachi, Fumiyuki

PY - 2009

Y1 - 2009

N2 - Recently, we have proposed an adaptive channel estimation (CE) scheme using one-tap recursive least square (RLS) algorithm (adaptive RLS-CE), where the forgetting factor is adapted to the changing channel condition by the least mean square (LMS) algorithm, for direct sequence-code division multiple access (DS-CDMA) with frequency-domain equalization (FDE). However, the tracking ability for adaptive RLS-CE is limited since the channel estimate obtained from the previously received block is used. In this paper, we introduce the polynomial prediction to improve the tracking ability. We evaluate the bit error rate (BER) performance of DS-CDMA using polynomial prediction RLS-CE in a frequency-selective fast Rayleigh fading channel by computer simulation.

AB - Recently, we have proposed an adaptive channel estimation (CE) scheme using one-tap recursive least square (RLS) algorithm (adaptive RLS-CE), where the forgetting factor is adapted to the changing channel condition by the least mean square (LMS) algorithm, for direct sequence-code division multiple access (DS-CDMA) with frequency-domain equalization (FDE). However, the tracking ability for adaptive RLS-CE is limited since the channel estimate obtained from the previously received block is used. In this paper, we introduce the polynomial prediction to improve the tracking ability. We evaluate the bit error rate (BER) performance of DS-CDMA using polynomial prediction RLS-CE in a frequency-selective fast Rayleigh fading channel by computer simulation.

KW - Channel estimation

KW - Components

KW - DS-CDMA

KW - Frequency-domain equalization

KW - Prediction

KW - RLS algorithm

UR - http://www.scopus.com/inward/record.url?scp=77951491172&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77951491172&partnerID=8YFLogxK

U2 - 10.1109/VETECF.2009.5378727

DO - 10.1109/VETECF.2009.5378727

M3 - Conference contribution

AN - SCOPUS:77951491172

SN - 9781424425150

T3 - IEEE Vehicular Technology Conference

BT - Proceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall

T2 - 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall

Y2 - 20 September 2009 through 23 September 2009

ER -