Two phase constraining schemes using quantized feedback for MISO systems

Author

Kim, Young Gil ; Beaulieu, Norman C.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Seoul, Seoul, South Korea

fYear

2009

fDate

23-26 Aug. 2009

Firstpage

388

Lastpage

391

Abstract

We propose two phase constraining (PC) schemes using quantized feedback for multiple-input single-output (MISO) systems. The PC schemes are generalizations of the quadrature phase constraining (QPC) scheme. One PC scheme cophases channel gains with respect to the first transmit antenna channel gain, and the other PC scheme cophases channel gains by positioning all the channel gains into a fixed sector. We analyze the combined channel gain for both PC schemes, and find that the PC scheme that cophases with respect to the first transmit antenna channel gain provides 1.2 dB power gain over an orthogonal space-time block code (OSTBC) when the number of transmit antennas is four and the number of feedback bits is three.

Keywords

block codes; orthogonal codes; space-time codes; transmitting antennas; MISO systems; channel gains; multiple-input single-output systems; orthogonal space-time block code; quadrature phase constraining; quantized feedback; transmit antenna channel gain; AWGN; Antenna feeds; Block codes; Computer simulation; Feedback; Gain; Gas insulated transmission lines; Receiving antennas; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and Signal Processing, 2009. PacRim 2009. IEEE Pacific Rim Conference on

Conference_Location

Victoria, BC

Print_ISBN

978-1-4244-4560-8

Electronic_ISBN

978-1-4244-4561-5

Type

conf

DOI

10.1109/PACRIM.2009.5291341

Filename

5291341