The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Geometry-based stochastic model (GBSM) of multiple input multiple output (MIMO) channel describes the channel impulse response (CIR) in the sense of rays and clusters, which obey the empirical distributions. Thus, the correlation between MIMO sub-channels is not explicitly defined, which makes it difficult for GBSM to predict channel capacity accurately. Facing the increased antenna number of massive...
In this paper, the asymptotic favorable propagation (FP) condition is thoroughly analyzed under the assumption that user terminals (UTs) are gathered in a size-limited circular area. Uniform distribution is assumed for UTs. Assumptions that are accordant with realistic propagation environment are used, which mathematically bring in close-form approximations for mean and variance of FP. Based on these...
In this paper, we present a cluster parameter based analysis of an outdoor-to-indoor (O2I) Multiple-Input-Multiple-Output (MIMO) measurement campaign carried out at 3.5 GHz in an office building. The measurement was performed using a wideband multi-antenna radio channel sounder. Besides azimuth angle of arrival (AoA), azimuth angle of departure (AoD) and delay domains included in traditional 2 dimensional...
This paper investigates a spatial multiplexing MIMO scheme with beamforming and space-time block coding (STBC) for downlink transmission. It combines SM-STBC with beamforming under high spatial correlated channel, and has the advantages of the three techniques. The proposed scheme utilizes beamforming weights to build uncorrelated virtual channels based on uplink direction of arrival (DOA) estimation,...
When developing gigabit speed communication systems, a lot of design and implementation challenges emerge. And prototype is important to assess the overall system performance and complexity trade-offs under real-world conditions. In this contribution, prototype design and implementation of a time division-fourth generation (TD-4G) system-time division duplex-gigabit speed (TDD-GBPS) demonstration...
In this paper, we propose a novel modeling method of indoor broadband fixed wireless access (BFWA) MIMO Ricean channel based on empirical results obtained from stationary channel measurement at 4.9 GHz in both indoor line of sight (LOS) and non-LOS (NLOS) scenarios. The phenomena that K-factors decay versus delay linearly in both the LOS and NLOS scenarios are reported. Extended Saleh-Valenzuela cluster...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.