Title :
Interference-Aware Decentralized Precoding for Multicell MIMO TDD Systems
Author :
Lee, Byong Ok ; Je, Hui Won ; Sohn, Illsoo ; Shin, Oh-Soon ; Lee, Kwang Bok
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., Seoul
Abstract :
Multiple-input multiple-output (MIMO) precoding scheme is developed for time division duplex (TDD) systems in a multicell environment. The proposed scheme is designed to maximize the total achievable rate, and to work in the decentralized manner with only locally available channel state information (CSI) at each transmitter. We first establish and solve a decentralized optimization problem for the case of multiple-input single-output (MISO) channels. We introduce a new precoding design metric called signal to generating interference plus noise ratio (SGINR). Based on the SGINR metric, the MISO precoding scheme is extended to general MIMO channels. Simulation results confirm that proposed precoding scheme offers significant throughput enhancement in multicell environments.
Keywords :
MIMO communication; cellular radio; precoding; channel state information; interference-aware decentralized precoding; multicell MIMO TDD systems; multiple-input multiple-output system; multiple-input single-output channels; signal to generating interference plus noise ratio; time division duplex systems; Channel state information; Interference; MIMO; Noise generators; Signal design; Signal generators; Signal to noise ratio; Throughput; Transmitters; Working environment noise;
Conference_Titel :
Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
Conference_Location :
New Orleans, LO
Print_ISBN :
978-1-4244-2324-8
DOI :
10.1109/GLOCOM.2008.ECP.858
