Doubly iterative receiver for single carrier cyclic-prefix transmissions with EM-based channel estimation

TY - CHAP

T1 - Doubly iterative receiver for single carrier cyclic-prefix transmissions with EM-based channel estimation

AU - Pham, The-Hanh

AU - Liang, Yin-Chan

AU - Nallanathan, A.

AU - Nallanathan, Arumugam

PY - 2007

Y1 - 2007

N2 - Single carrier cyclic-prefix (SCCP) transmission is the scheme that can support the increasing demand of nowadays high data rate applications. The block iterative generalized decision feedback equalizer (BI-GDFE) is an iterative and effective interference cancellation scheme which has near-ML performance yet with very low complexity. In order to deploy this scheme, the channel state information (CSI) must be available at the receiver. In this paper, the problem of channel estimation using the Expectation Maximization (EM) algorithm is investigated. The BI-GDFE provides the soft information of the transmitted signal for the EM-based algorithm. The resulted receiver becomes a doubly iterative scheme. To evaluate the performance of the proposed estimation algorithm, the Cramer-Rao Lower Bound (CRLB) is also derived. Computer simulations show that the bit error rate (BER) performance of the proposed receiver can reach the performance of BI-GDFE with perfect CSI.

AB - Single carrier cyclic-prefix (SCCP) transmission is the scheme that can support the increasing demand of nowadays high data rate applications. The block iterative generalized decision feedback equalizer (BI-GDFE) is an iterative and effective interference cancellation scheme which has near-ML performance yet with very low complexity. In order to deploy this scheme, the channel state information (CSI) must be available at the receiver. In this paper, the problem of channel estimation using the Expectation Maximization (EM) algorithm is investigated. The BI-GDFE provides the soft information of the transmitted signal for the EM-based algorithm. The resulted receiver becomes a doubly iterative scheme. To evaluate the performance of the proposed estimation algorithm, the Cramer-Rao Lower Bound (CRLB) is also derived. Computer simulations show that the bit error rate (BER) performance of the proposed receiver can reach the performance of BI-GDFE with perfect CSI.

KW - SYSTEMS

M3 - Conference paper

SN - 978-1-4244-1042-2

T3 - IEEE Global Telecommunications Conference (Globecom)

SP - 2852

EP - 2856

BT - GLOBECOM 2007: 2007 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-11

PB - IEEE

CY - NEW YORK

T2 - IEEE Global Telecommunications Conference (GLOBECOM 07)

Y2 - 26 November 2007 through 30 November 2007

ER -