Title :
ARQ strategies for MIMO eigenmode transmission with adaptive modulation and coding
Author :
De Carvalho, Elisabeth ; Popovski, Petar
Author_Institution :
Aalborg Univ., Aalborg, Denmark
Abstract :
Packet retransmission strategies are presented for MIMO eigenmode transmission where adaptive modulation and coding (AMC) is implemented. The retransmission design is based on weighted linear MMSE. It includes the transmit and receiver filter, the power and eigenmode allocation and AMC level when new packets are transmitted. The weight matrix of WMMSE is used to appropriately weight streams with different AMC levels in order to maximize the system throughput. Simulations show that the choice of the weight factors has a major impact on the performance.
Keywords :
MIMO communication; adaptive codes; adaptive modulation; automatic repeat request; eigenvalues and eigenfunctions; least mean squares methods; ARQ strategies; MIMO eigenmode transmission; adaptive modulation and coding; automatic repeat request; packet retransmission strategies; weight factors; weighted linear MMSE; Automatic repeat request; Channel state information; Decoding; Error correction; MIMO; Modulation coding; Power filters; Throughput; Transceivers; Transmitters;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
DOI :
10.1109/PIMRC.2009.5449977
