Title :
Full-diversity STBC designs for two-user MIMO X channels
Author :
Long Shi ; Wei Zhang ; Xiang-Gen Xia
Author_Institution :
Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales, Sydney, NSW, Australia
Abstract :
In this paper, we study space-time block code (STBC) designs for two-user MIMO X channels to achieve full diversity when the inter-user interference is cancelled by the group zero-forcing receiver. To do so, we first propose a design criterion and then propose a systematic design to satisfy the criterion so that it achieves the full diversity. The code rate approaches one when encoding length gets large. We prove that full diversity can be achieved by the proposed STBC without the channel information at the transmitters. Simulation results are provided to demonstrate the theory.
Keywords :
MIMO communication; diversity reception; encoding; intercarrier interference; radio receivers; radio transmitters; space-time block codes; encoding length; full-diversity STBC designs; group zero-forcing receiver; inter-user interference; space-time block code; transmitters; two-user MIMO X channels; Interference cancellation; MIMO; Receiving antennas; Transmitters; Vectors;
Conference_Titel :
Communications (ICC), 2013 IEEE International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICC.2013.6655515