Spatial correlation for a circular antenna array and its applications in wireless communications

Abstract

In this paper, we derive spatial correlation functions of linear and circular antenna arrays for three types of angular energy distributions: a Gaussian angle distribution, the angular energy distribution arising from a Gaussian spatial distribution, and uniform angular distribution. The spatial correlation functions are investigated carefully. The spatial correlation is a function of antenna spacing, array geometry and the angular energy distribution. In order to emphasize the research and their applications in diversity reception, as an example, performance of the antenna arrays with MRC in correlated Nakagami fading channels is investigated, in which analytical formulas of average BER for the spatial correlation are obtained.

Spatial Correlation of Multiple Antenna Arrays in Wireless Communication Systems

“…We use (11) and ( We also present the results of using a multiple antenna array restricted to a 2-D area on the azimuth plane, i.e., x 2 mo + y 2 mo ≤ D max with radius D max = 5λ on the azimuth plane and array element positions optimized by the process presented in Section 3.6. We observe that the proposed method provides the best ECC performance for a multiple antenna array with a 3-D geometry.…”

“…We concentrate on the uniform signal angular distribution in this paper. This model has been considered for deriving two-dimensional (2-D) spatial correlations [11]. It is also shown in [36] that the key parameter for the system performance is the standard deviation of the angle spread of the incident signal and not the type of PDF under investigation.…”

“…In contrast, due to that wireless base stations need azimuthally omni-directional antennas with sufficient power and sufficient beam width in the elevation plane so as to cover as wide an area as possible, there has been increased interest in using uniform circular arrays (UCAs). The spatial correlation characteristics of UCAs with a single ring have been reported by several research papers [7,[11][12][13]. However, by using a UCA to obtain a frequency invariant characteristic over a large bandwidth, the dynamic range of the compensation filters will be very large and it leads to considerable noise amplification.…”

On the interference rejection capabilities of triangular antenna array for cellular base stations

“…Wireless communication systems employ antenna arrays at the base stations, vehicles, ships, satellites, and aircrafts in order to receive information from users of wireless networking operating for same or different access schemes such as Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA) and Code Division Multiple Access (CDMA) to fulfill the increased demand of channel requirement for these services [1], [2]. There has been wide range of research investigating the performance of the circular antenna arrays [3]- [6], but the least attention was given to a comparative performance analysis between the triangular antenna array and the different types of antenna array in terms of the interference suppression.…”

MIMO Performance and Decoupling Network: Analysis of Uniform Rectangular array Using Correlated-Based Stochastic Models

“…Several array configurations have been the subject of investigations on MIMO technology, and most of the prior investigations considered simple system configurations using only AS [5][6][7][8][9].…”