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2007
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Throughput Performance of Pre-coding MIMO Transmission with Multi-Beam Selection

10 years 4 months ago
Throughput Performance of Pre-coding MIMO Transmission with Multi-Beam Selection
Abstract―We have been proposing multi-beam MIMO (MBMIMO) as an Evolved UTRA downlink MIMO scheme for 3GPP long term evolution (LTE). MB-MIMO is a pre-coding MIMO scheme that uses a simple combination of multi-beam multiple-data-stream transmission and user equipment (UE)based adaptive beam selection. The scheme benefits from its simple uplink feedback signalling, because MB-MIMO requires only a subset of the beam indices to be fed back. In this paper via computer simulation, we compare the performance of MB-MIMO and closed-loop MIMO that utilizes antenna selection only without beam-forming at the transmitter. In this comparison we consider the correlation between antenna elements in a temporally and spatially dispersed multi-path channel. Simulation results revealed that MB-MIMO has superior performance due to its beam-forming gain, even with limited feedback signalling. In this paper, we also introduce the MB-MIMO scheme using the cross-polarized (X-pol) antenna arrays and demonstra...
Hiroyuki Seki, Masafumi Tsutsui
Added 02 Jun 2010
Updated 02 Jun 2010
Type Conference
Year 2007
Where ICC
Authors Hiroyuki Seki, Masafumi Tsutsui
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