Turbo packet combining for hybrid AF/DF multi-relay-assisted systems over multi-antenna broadband channels

Houda Chafnaji (1) , Tarik Ait Idir (1) , Halim Yanikomeroglu (2) , Samir Saoudi (3, 4)

1 INPT - Institut National des Postes et Télécommunications [Rabat]
2 Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada (Carleton University)
3 Lab-STICC_TB_CACS_COM
4 SC - Département Signal et Communications

This paper focuses on turbo packet combining for hybrid AF/DF multi-relay systems operating over multipleinput- multiple-output (MIMO) broadband channels. We consider virtual antenna based combining strategy that has been widely studied for the point-to-point hybrid ARQ. However, the extension of this combining strategy to hybrid AF/DF cooperative communications is not straightforward. In this paper, we revisit this combining strategy. First, we build an appropriate system model to mask the cooperation. Then, we extend the turbo packet combiner inspired by virtual antenna concept to cooperative communications. Finally, block error rate (BLER) are investigated to demonstrate the gain offered by the studied turbo packet combiner.

Domaines: Traitement du signal et de l'image [eess.SP]

Houda Chafnaji, Tarik Ait Idir, Halim Yanikomeroglu, Samir Saoudi. Turbo packet combining for hybrid AF/DF multi-relay-assisted systems over multi-antenna broadband channels. WWRF27: 27th Wireless World Research Forum, Oct 2011, Dussendorf, Germany. ⟨hal-00725639⟩