Title :
Large-system spectral efficiency of interference-limited MIMO systems
Author :
Dai, Huaiyu ; Poor, H. Vincent
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Abstract :
The spectral efficiency of multiple-input multiple-output (MIMO) systems operating in multicell frequency-flat fading environments is studied, for situations in which cochannel interference is the dominant channel impairment instead of ambient noise. The following multiuser detection methods are analyzed: a single-cell detector, the joint optimum detector, a group linear minimum-mean-square-error (MMSE) detector and its generalized version, with the focus on their large-system asymptotic (non-random) expressions. Analytical and numerical results based on these asymptotic multicell MIMO spectral efficiencies are explored to gain insights into the behavior of multicell MIMO systems.
Keywords :
MIMO systems; cellular radio; cochannel interference; fading channels; least mean squares methods; multiuser detection; cochannel interference; frequency-flat fading; group linear MMSE detector; group linear minimum-mean-square-error detector; interference-limited MIMO systems; joint optimum detector; large-system spectral efficiency; multicell environments; multiple-input multiple-output systems; multiuser detection; single-cell detector; Detectors; Eigenvalues and eigenfunctions; Fading; Frequency; Interchannel interference; MIMO; Mathematical model; Multiuser detection; Receiving antennas; Transmitting antennas;
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
DOI :
10.1109/GLOCOM.2003.1258551
