Title :
A CDD based MIMO-HARQ transmission scheme
Author :
Ma, Ni ; Zhang, Xiaobo
Author_Institution :
Philips Res. Asia - Shanghai, Shanghai
Abstract :
This paper proposes a CDD based HARQ scheme for MIMO-OFDM systems, i.e. a signed operation is conjoint with CDD-HARQ to exploit both spatial and time diversity gains from symbol retransmission. Theoretical analysis and simulations verify its performance improvement over conventional chase combing HARQ in MIMO-OFDM systems. Another advantage of this operation is that since only a sign multiplying operation is added, the increase in complexity is minimal.
Keywords :
MIMO communication; OFDM modulation; automatic repeat request; CDD-HARQ; MIMO-HARQ transmission scheme; MIMO-OFDM systems; sign multiplying operation; spatial diversity gains; symbol retransmission; theoretical analysis; time diversity gains; Asia; Automatic repeat request; Delay; Diversity methods; Diversity reception; Error correction; Forward error correction; Frequency domain analysis; OFDM; Performance analysis; CDD; Chase Combine; HARQ; MIMO-OFDM; MMSE;
Conference_Titel :
Communications, 2008. APCC 2008. 14th Asia-Pacific Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-4-88552-232-1
Electronic_ISBN :
978-4-88552-231-4
