Title :
Turbo packet combining for broadband MIMO relay communication
Author :
Ait-Idir, Tarik ; Chafnaji, Houda ; Yanikomeroglu, Halim ; Saoudi, Samir
Author_Institution :
Commun. Syst. Dept., INPT, Rabat, Morocco
Abstract :
In this paper, we provide a survey of cooperative automatic repeat request (ARQ) protocols for multi-relay systems operating over multiple-input-multiple-output (MIMO) broadband channels. We study three main operating modes: amplify-and-forward (AF), decode-and-forward (DF), and positive/negative acknowledgment (ACK/NACK)-aided DF. We describe efficient minimum mean square error (MMSE) frequency domain equalization (FDE) iterative turbo packet combining techniques for cooperative ARQ, and show that they outperform conventional log-likelihood ratio (LLR)-based turbo combining.
Keywords :
MIMO communication; automatic repeat request; diversity reception; equalisers; iterative decoding; mean square error methods; radio repeaters; turbo codes; MIMO channel; amplify-and-forward; broadband MIMO relay communication; cooperative ARQ; cooperative automatic repeat request protocols; decode-and-forward; iterative turbo packet combining technique; minimum mean square error frequency domain equalization; multiple-input-multiple-output broadband channel; positive/negative acknowledgment; Admission control; Base stations; Broadband communication; Interference; MIMO; Multiaccess communication; Noise level; Quality of service; Relays; Signal to noise ratio; Cooperative relaying; multiple-antenna systems; packet combining; turbo equalization;
Conference_Titel :
Microwave Symposium (MMS), 2009 Mediterrannean
Conference_Location :
Tangiers
Print_ISBN :
978-1-4244-4664-3
Electronic_ISBN :
978-1-4244-4665-0
DOI :
10.1109/MMS.2009.5409772
