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2010

Code design for MIMO downlink with imperfect CSIT

8 years 2 months ago
Code design for MIMO downlink with imperfect CSIT
—In this letter, we implement a simplified version of the Cover - van der Meulen - Hajek - Pursley (CMHP) coding originally characterized by Wajcer, Wiesel, and Shamai. The vector Gaussian broadcast channel with imperfect channel state information at the transmitter (CSIT) is considered where the transmitter only knows the channel mean and variance. Our focus is on the implementation and performance analysis of CMHP under the imperfect CSIT model using practical codes. Turbo codes described in IEEE 802.20 draft specification and quadrature amplitude modulation are used to implement CMHP. In order to find the optimal power allocation and beamforming vectors which maximize the sum rate with practical codes, we introduce the SINR penalty factor. The SNRs that achieve various target spectral efficiency are presented and analyzed.
Hyung-Tae Kim, Sung Hoon Lim, Inkyu Lee, Saejoon K
Added 30 Jan 2011
Updated 30 Jan 2011
Type Journal
Year 2010
Where TCOM
Authors Hyung-Tae Kim, Sung Hoon Lim, Inkyu Lee, Saejoon Kim, Sae-Young Chung
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