상세정보
학술대회
Distribution of Eigenvalues for 2×N MIMO Channel Capacity based on Urban Microcell Measurements
- 발행일
- 201009
- 출처
- International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) 2010, pp.223-228
- 협약과제
- 10MI2700, IMT-Advanced 기반 광대역 무선채널 특성연구, 정현규
- 초록
- In this paper, we investigate the distribution of eigenvalues of HH?? where the H and superscript ?? denote the MIMO (multiple input multiple output) channel matrix measured in urban microcell and conjugation and transposition. Our channel sounding system is the BECS (band exploration and channel sounding) 2006, which works at a carrier frequency of 3.705 GHz with 100 MHz bandwidth. From the measured data, It is observed that the distribution of eigenvalues of HH?? almost fits with Gamma distribution. We derive simple expressions of mean and variance of eigenvalues, which are functions of the absolute values of Tx (transmit) and Rx (receive) antenna correlation coefficients and the number of Rx antennas. Using the expressions of mean and variance, we then model the eigenvalues as Gamma distributed random variables for 2xN (i.e., 2 Tx and N Rx antennas) MIMO channel capacity. Monte Carlo simulations are used to generate eigenvalue realizations according to the model. The results are compared with the measure data and good agreements are found. ©2010 IEEE.
- KSP 제안 키워드
- 100 MHz, 5 GHz, Antenna Correlation, Capacity based, Carrier frequency, Correlation Coefficient, Gamma distribution, MHz bandwidth, MIMO channel capacity, Monte-Carlo simulation(MCS), Multiple input multiple output(MIMO)