Title :
Single-Carrier Incremental Relaying with Joint Tx/Rx FDE
Author :
Takeda, Kazuki ; Adachi, Koichi ; Sun, Sumei ; Adachi, Fumiyuki
Author_Institution :
Dept. of Electr. & Commun. Eng., Tohoku Univ., Sendai, Japan
Abstract :
We propose an incremental relaying scheme using joint Tx/Rx frequency-domain equalization (FDE) for single-carrier (SC) transmission. If a packet sent by a source node (S) has been correctly decoded at a relay node (R), but not at the destination node (D), retransmission is cooperatively done by S and R. Assuming that the channel state information (CSI) is shared by S, R, and D, joint Tx/Rx FDE is performed. We derive a set of optimal/suboptimal Tx/Rx FDE weights among S, R, and D, based on the minimum mean square error (MMSE) criterion under total transmit power constraint of S and R. Computer simulation verifies the effectiveness of the proposed scheme.
Keywords :
channel estimation; least mean squares methods; packet radio networks; radio receivers; radio transmitters; relays; channel state information; computer simulation; destination node; frequency-domain equalization; joint Tx-Rx FDE; minimum mean square error; optimal-suboptimal Tx-Rx FDE; relay node; single carrier incremental relaying; single carrier transmission; source node; total transmit power constraint; Automatic repeat request; Diversity reception; Frequency domain analysis; Joints; Mean square error methods; Relays; Throughput;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2011 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-8328-0
DOI :
10.1109/VETECF.2011.6093135
