TY - GEN
T1 - On the capacity of MIMO distributed antenna systems
AU - Lee, Sang Rim
AU - Moon, Sung Hyun
AU - Kim, Jin Sung
AU - Lee, Inkyu
PY - 2012
Y1 - 2012
N2 - In this paper, we investigate the ergodic capacity for distributed antenna systems over Rayleigh fadings, including a distance-dependent pathloss model. Based on the proof of asymptotic normality, the mean and the variance of the instantaneous capacity were recently presented as a closed form solution, which includes a root of polynomials. However, this solution is too complicated to capture quantitative performance measures such as multiplexing gain and power offset. In this work, we derive a simple and accurate expression for the ergodic capacity by utilizing the high signal-to-noise ratio (SNR) analysis. Our simple solution provides meaningful insights on how the ergodic capacity is affected as SNR, pathloss and antenna configurations change. Numerical results confirm the validity of our analytical results under a realistic pathloss model.
AB - In this paper, we investigate the ergodic capacity for distributed antenna systems over Rayleigh fadings, including a distance-dependent pathloss model. Based on the proof of asymptotic normality, the mean and the variance of the instantaneous capacity were recently presented as a closed form solution, which includes a root of polynomials. However, this solution is too complicated to capture quantitative performance measures such as multiplexing gain and power offset. In this work, we derive a simple and accurate expression for the ergodic capacity by utilizing the high signal-to-noise ratio (SNR) analysis. Our simple solution provides meaningful insights on how the ergodic capacity is affected as SNR, pathloss and antenna configurations change. Numerical results confirm the validity of our analytical results under a realistic pathloss model.
UR - http://www.scopus.com/inward/record.url?scp=84871961018&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84871961018&partnerID=8YFLogxK
U2 - 10.1109/ICC.2012.6364094
DO - 10.1109/ICC.2012.6364094
M3 - Conference contribution
AN - SCOPUS:84871961018
SN - 9781457720529
T3 - IEEE International Conference on Communications
SP - 4824
EP - 4828
BT - 2012 IEEE International Conference on Communications, ICC 2012
T2 - 2012 IEEE International Conference on Communications, ICC 2012
Y2 - 10 June 2012 through 15 June 2012
ER -