Title :
New Adaptive HARQ Schemes in MIMO TDD System Using SVD
Author :
Xie, Gang ; Xiong, Fang ; Siyang Liu ; Liu, Siyang
Author_Institution :
Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
Inheriting the main advantages of hybrid automatic retransmission request (HARQ) and multi-input multi-output (MIMO), we apply HARQ scheme into MIMO systems to get high reliability and throughput. This paper presents three kinds of adaptive HARQ schemes in MIMO-TDD system using SVD for different system complexity and quality of service (QoS) requirements. The first scheme makes full use of the freedom of antennas permutation and the process is very simple. The other two schemes utilize two degrees of freedom which include antennas permutation and power allocation to achieve better performance.
Keywords :
MIMO communication; antenna arrays; automatic repeat request; quality of service; singular value decomposition; time division multiplexing; MIMO TDD system; QoS; SVD; adaptive HARQ scheme; antennas permutation; hybrid automatic retransmission request; multiinput multioutput time division duplex; quality-of-service; singular value decomposition; Cyclic redundancy check; Detectors; MIMO; Maximum likelihood detection; Power system modeling; Quality of service; Receiving antennas; Throughput; Transmitters; Transmitting antennas;
Conference_Titel :
Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-1042-2
Electronic_ISBN :
978-1-4244-1043-9
DOI :
10.1109/GLOCOM.2007.556
