An Investigation of MIMO Performance in the Indoor Ricean Environment

Abstract

In this paper, we investigate the Multiple-Input Multiple-Output (MIMO) channel capacity in indoor Ricean channels based on MIMO channel measurements at 2.45 GHz. The measured data is analysed using a super resolution parameter estimation algorithm. Our results demonstrate that the line-of-sight (LOS) component in a Ricean scenario influences indoor MIMO performance through increased spatial correlation between array elements. We found that indoor channels with higher values of Ricean K factor have smaller numbers of effective multipath components and increased spatial correlation. Measurement results also showed that, the effect of varying antenna height on indoor MIMO capacity is also due to the spatial correlation of multipath propagation and has a close relationship with the separation between the transmitter and receiver.

Characterization of the Indoor Multiantenna Body-to-Body Radio Channel

“…This paper gives a detailed insight into how body shadowing changes when devices are located on different parts of the human bodies. Among the applications which involve body-to-body communications, "smart clothes" [8] using E-textiles have been used in emergency services and firefighters [9], medical monitoring [10], militaries [11], sports, as well as in entertainment industries [12]. Recent advances in small and wearable antennas for body-area networks (BANs) make it possible to embed antennas easily into the smart clothes (e.g., [13]- [15]).…”

Ανάπτυξη Αλγορίθμων Για Χωροχρονικούς Εξισωτές Ασύρματων Τηλεπικοινωνιακών Διαύλων

“…ρευση της απόδοσης αν και το σχετικό πλεονέκτημα του ILS-SD διατηρείται. Πρέπει να σημειωθεί, ότι η παρουσία ενός μονοπατιού οπτικής επαφής σε ένα Ricean κανάλι εισάγει επίσης χωρική συσχέτιση[87]. Σε όλα τα παραπάνω σενάρια συσχετισμένων καναλιών, η σχετική ταχύτητα σύγκλισης των δύο επαναληπτικών αλγορίθμων παρατηρήθηκε ότι είναι ανάλογη εκείνης που υπολογίστηκε για ασυσχέτιστα κανάλια στα Σχ.…”