Achievable sum-rate of multiuser massive MIMO downlink in ricean fading channels
Data(s) |
01/09/2015
|
---|---|
Resumo |
We investigate the achievable ergodic sum-rate of multi-user multiple-input multiple-output systems in Ricean fading channels. We first derive a lower bound on the average signal-to-leakage-and-noise ratio by utilizing the Mullen's inequality, which is then used to analyze the effect of channel mean information on the achievable sum-rate. With these results, a novel statistical-eigenmode space-division multipleaccess downlink transmission scheme is proposed. For this scheme, we derive an exact closed-form expression for the achievable ergodic sum-rate. Our results show that the achievable ergodic sum-rate converges to a saturation value in the high signal-to-noise ratio (SNR) region and reaches to a lower limit value in the lower Ricean K-factor range. In addition, we present tractable upper and lower bounds, which are shown to be tight for any SNR and Ricean K-factor value. Finally, the theoretical analysis is validated via numerical simulations. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Institute of Electrical and Electronics Engineers (IEEE) |
Direitos |
info:eu-repo/semantics/closedAccess |
Fonte |
Tan , W , Jin , S , Wang , J & Matthaiou , M 2015 , Achievable sum-rate of multiuser massive MIMO downlink in ricean fading channels . in 2015 IEEE International Conference on Communications (ICC) . Institute of Electrical and Electronics Engineers (IEEE) . DOI: 10.1109/ICC.2015.7248528 |
Tipo |
contributionToPeriodical |