상세정보
학술지
Distribution of Eigenvalues for 2×2 MIMO Channel Capacity based on Indoor Measurements
- 발행일
- 201204
- 출처
- IEEE Transactions on Wireless Communications, v.11 no.4, pp.1255-1259
- ISSN
- 1536-1276
- 출판사
- IEEE
- 협약과제
- 11PI1300, IMT-Advanced 기반 광대역 무선채널 특성연구, 정현규
- 초록
- Based on the non line-of-sight (NLOS) indoor measurements performed in the corridors on the third floor of the Electronics and Telecommunications Research Institute (ETRI) building in Daejeon city, Republic of Korea, we investigated the distribution of the eigenvalues of HH*, where H denotes a 2×2 multiple-input multiple-output (MIMO) channel matrix. Using the observation that the distribution of the measured eigenvalues matches well with the Gamma distribution, we propose a model of eigenvalues as Gamma distributed random variables that prominently feature both transmitting and receiving correlations. Using the model with positive integer k i, i=1, 2, which is the shape parameter of a Gamma distribution, we derive the closed-form ergodic capacity of the 2×2 MIMO channel. Validation results show that the proposed model enables the evaluation of the outage and ergodic capacities of the correlated 2×2 MIMO channel in the NLOS indoor corridor environment. © 2012 IEEE.
- KSP 제안 키워드
- Capacity based, Ergodic capacity, Gamma distribution, Indoor measurements, Line-Of-Sight(LOS), MIMO channel capacity, Non Line-of-sight(NLOS), Proposed model, Random variable, Republic of Korea, Research institute