Title :
STBC/SFBC for 4 Transmit Antennas with 1-bit Feedback
Author :
Kim, Joonsuk ; Ariyavisitakul, Sirikiat Lek ; Seshadri, Nambi
Author_Institution :
CTO, Broadcom Corp., Sunnyvale, CA
Abstract :
In this paper, new space time/frequency block coding (STBC/SFBC) scheme with angle feedback for 4-transmit antennas is proposed. This scheme achieves the full diversity gain with the full code rate by rotating constellation symbols in STBC/SFBC codewords using the quasi-orthogonal structure. With multiple receive antennas, this scheme can also be applied with additional receive antenna diversity. We show the channel characteristics can be much improved with as small as 1-bit feedback overhead. Simulation shows that the proposed scheme with 1-bit feedback achieves near-optimum performance.
Keywords :
antenna arrays; block codes; space-time codes; transmitting antennas; wireless channels; 1-bit feedback; SFBC; STBC; angle feedback; channel characteristics; quasi-orthogonal structure; receive antenna diversity; space time frequency block coding; transmit antennas; Antenna feeds; Antennas and propagation; Block codes; Diversity methods; Feedback; Interference; Quantization; Receiving antennas; Transmitting antennas; Wireless communication;
Conference_Titel :
Communications, 2008. ICC '08. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2075-9
Electronic_ISBN :
978-1-4244-2075-9
DOI :
10.1109/ICC.2008.741
