Title :
Analysis of circular antenna arrays with MRC in Nakagami fading channels by approximate approaches
Author :
Zhou, J. ; Xiao, D.R. ; Sasaki, S. ; Kikuchi, H. ; Luo, H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Niigata Univ.
Abstract :
Multiple antenna systems are promising architectures for overcoming the effects of multi-path interference and increasing the spectrum efficiency. Spatial correlation among antenna elements, due to limited angular spread or insufficient antenna spacing, significantly reduces the performance of the diversity reception systems. In this paper, we explore the performance for circular antenna arrays with MRC (maximal ratio combining) in Nakagami fading channels by exact and approximate approaches. By including spatial information, we derive spatial correlation functions of circular antenna arrays. Analytical formulas of average bit error ratio (BER) are also derived as a function of covariance matrix of the multi-path signals. The effects of antenna configurations and the wireless environment are illustrated
Keywords :
Nakagami channels; antenna arrays; approximation theory; covariance matrices; diversity reception; error statistics; multipath channels; radiofrequency interference; BER; Nakagami fading channels; antenna spacing; approximate approaches; bit error ratio; circular antenna arrays; covariance matrix; diversity reception systems; maximal ratio combining; multipath interference; multipath signals; multiple antenna systems; spatial correlation; spectrum efficiency; wireless environment; Antenna arrays; Azimuth; Bit error rate; Covariance matrix; Diversity reception; Equations; Fading; Geometry; Linear antenna arrays; Signal analysis;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9128-4
DOI :
10.1109/MAPE.2005.1617857
