caa a22 4500 60618998X CHVBK 20210128100853.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s10776-015-0274-z doi (NATIONALLICENCE)springer-10.1007/s10776-015-0274-z Deng Changjian School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, China aut Channel Selection and Access Density Analysis Based on Random Matrix in WSN [Elektronische Daten] [Changjian Deng] In the paper, a kind of channel noise produced by nodes accessing channel was considered, and this noise was compared with Middleton Class-A noise. It was assumed that the time, space, frequency of channel accessed by nodes were randomized, hence the channel selection can be described as a random matrix. And the random matrix were approximately calculated and analyzed by Krylov subspace method and matrix integral method. Results of simulation and experiment show, the higher channel accessed rate make the lower package receiving probability in Rayleigh channel; and although the capacity of channel is increased with the access number of nodes, it holds at a limited value when the number is large enough. Results also prove the higher density of sensor nodes make the lower package receiving probability. Springer Science+Business Media New York, 2015 Random channel selection matrix nationallicence Time space frequency domain analysis nationallicence Channel access rate noise nationallicence Krylov subspace method nationallicence International Journal of Wireless Information Networks Springer US; http://www.springer-ny.com 22/3(2015-09-01), 171-179 1068-9605 22:3<171 2015 22 10776 https://doi.org/10.1007/s10776-015-0274-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10776-015-0274-z text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Deng Changjian School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, China aut NATIONALLICENCE 773 0- International Journal of Wireless Information Networks Springer US; http://www.springer-ny.com 22/3(2015-09-01), 171-179 1068-9605 22:3<171 2015 22 10776