Title :
Spatial Multiplexing Gain for Two Interfering MIMO Broadcast Channels Based on Linear Transceiver
Author :
Kim, Jaesin ; Park, Seok-Hwan ; Sung, Hakjea ; Lee, Inkyu
Author_Institution :
Sch. of Electr. Eng., Korea Univ., Seoul, South Korea
fDate :
10/1/2010 12:00:00 AM
Abstract :
In this letter, we provide an expression of spatial multiplexing gain (SMG) for two mutually interfering multiple-input multiple-output (MIMO) broadcast channels, referred to as MIMO-IBC, with linear transceiver. We derive the SMG with respect to user antenna distribution, and compare the systems with and without cooperation among receive antennas in each cell. Additionally, we propose a linear precoding and decoding algorithm for the MIMO-IBC which maximizes the sum rate by extending a solution for single-cell multiple-input single-output broadcast channels. Simulation results confirm the accuracy of our theoretical SMG analysis for the MIMO-IBC.
Keywords :
MIMO communication; broadcast channels; decoding; multiplexing; precoding; receiving antennas; transceivers; decoding algorithm; interfering MIMO broadcast channel; interfering multiple-input multiple-output broadcast channel; linear precoding; linear transceiver; receive antenna; single-cell multiple-input single-output broadcast channel; spatial multiplexing gain; user antenna distribution; Array signal processing; Integrated circuits; MIMO; Multiplexing; Receiving antennas; Upper bound; Spatial multiplexing gain; broadcast channel (BC); minimum mean-squared error (MMSE); multiple-input multiple-output (MIMO); transmit beamforming;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2010.081610.100526
