Title :
SER Analysis of Scheduled TAS With MRC in the Presence of Non-Identical Channel Estimation Errors
Author :
Donghun Lee ; Youngtae Noh
Author_Institution :
Korean Agency for Technol. & Stand., Daejeon, South Korea
Abstract :
In this letter, we present a performance analysis of scheduled transmit antenna selection with maximal ratio combining (TAS-MRC) in the presence of non-identical channel estimation errors. This letter derives the probability density function (PDF) of the instantaneous effective signal-to-noise ratio for the scheduled TAS-MRC over Rayleigh fading channels with non-identical channel estimation errors. Using this PDF, we derive exact closed-form expressions for the scheduled TAS-MRC symbol error rate in the presence of non-identical channel estimation errors. The analysis results show that the order of diversity of scheduled TAS-MRC is improved in terms of transmit spatial diversity and multiuser diversity, whereas the received diversity is diminished by non-identical channel estimation errors, regardless of the modulation type.
Keywords :
Rayleigh channels; channel estimation; diversity reception; probability; transmitting antennas; Rayleigh fading channels; SER analysis; channel estimation; maximal ratio combining; probability density function; transmit antenna selection; Channel estimation; Diversity reception; Fading; Modulation; Probability density function; Signal to noise ratio; Transmitting antennas; Multiple-input multiple-output (MIMO); multiuser diversity (MUD); non-identical channel estimation error; spatial diversity; transmit antenna selection (TAS); user scheduling;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2496369
