A Dynamic Dual-Link Wideband MIMO Channel Sounder for 5.3 GHz

Abstract

Abstract-In this paper, we present and evaluate the performance of a dynamic dual-link wideband multiple-input-multipleoutput (MIMO) channel sounder. The channel sounder can simultaneously measure two wideband dual-polarized links, each with a MIMO matrix size of 30 × 30 and 30 × 32. Multilink MIMO systems, including multiuser and cooperative MIMO, are essential parts of future high-throughput wireless local area networks and fourth-generation cellular systems. To fully understand such systems, the dynamic characteristics of multilink MIMO channels have to be measured. In this paper, we present a channel sounder that enables such measurements, including double-directional parameter estimation possibility for both links. The presented dual-link MIMO channel sounder does not suffer from the deficiencies of previous "virtual multiuser"measurement systems. Furthermore, system analysis and sample results from a measurement campaign with this channel sounder at 5.3 GHz in an indoor office environment are presented.Index Terms-Channel measurements, dual link, multiple-input multiple-output (MIMO), multiuser, radio channel.

Analysis of Kurtosis-Based LOS/NLOS Identification Using Indoor MIMO Channel Measurement

“…University [8]. The contribution of this paper is the analysis and validation of kurtosis with different system parameters in terms of both simulations and measurement for NLOS identification purpose.…”

“…The hall occupies the whole height of the building and is surrounded by the classrooms and offices. The measurements use a MIMO channel sounder [7] and measurement configurations can be found in [8]. (2) where X is the random variable under evaluation, X m and X s are the mean and standard deviation of X, respectively.…”

Analysis of Subchannel Correlation in Dual-Polarised MIMO Systems via a Polarisation Diversity Scheme

“…Since all of the patch elements were dualpolarised, the result is a 128 × 32 MIMO system. Using the RUSK LUND channel sounder [26,27] (Figure 1c), the measurements were performed at a central frequency of 2.6 GHz, with a signal bandwidth of 50 MHz and a transmit power of 40dBm. The maximum measurable delay was 1.6μs.…”

Multi-Link MIMO Channel Modeling Using Geometry-Based Approach

“…The analyzed measurement was carried out in the corridor of the Department of Radio Science and Engineering in Aalto University by using a dual-link channel sounding system consisting of two channel sounders from Aalto University School of Science and Technology (Aalto) and Lund University (LU) operating at the frequency of 5.3 GHz [16]. The system is capable of simultaneously measuring two links having the MIMO matrix sizes of 30 ൈ 30 and 30 ൈ 32.…”