Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Xiaorong Xu"'
Publikováno v:
IEEE Communications Letters. 27:1001-1005
Publikováno v:
IEEE Transactions on Vehicular Technology. :1-12
Publikováno v:
IEEE Sensors Journal. 20:9685-9697
As an infrastructure-free positioning and navigation method, pedestrian dead reckoning (PDR) is still a research hotspot in the field of indoor localization. Step detection (SD) and stride length estimation (SLE) are two key components of PDR, and it
Publikováno v:
IEEE Transactions on Consumer Electronics. 65:134-141
NAND flash storage devices are gaining popularity in consumer electronic devices, such as digital cameras, tablet PCs, and smartphones, due to their attractive features. However, write operations significantly limit the performance of the flash stora
Publikováno v:
IEEE Communications Letters. 22:856-859
During cooperative spectrum sensing (CSS) in cognitive radio networks, malicious users (MUs) not only launch spectrum sensing data falsification (SSDF) attack, but also wiretap legitimate users (LUs) during the reporting phase. In this letter, an ene
Publikováno v:
IET Communications. 10:1428-1435
By introducing amplify-and-forward relaying into a cognitive radio system, typical cognitive relay networks are studied for the optimisation problems of the spectrum and power allocation. By applying the mixed spectrum access of overlay and underlay
Publikováno v:
IEEE Transactions on Vehicular Technology. 65:191-203
Due to the energy constraint of each cognitive user and potential secondary transmission errors, energy efficiency is very important for cognitive nodes in spectrum sensing and cooperative transmissions. In this paper, an energy awareness optimal rel
Publikováno v:
Wireless Networks. 22:2667-2680
Localization problem is an important and challenging topic in today's wireless sensor networks. In this paper, a novel localization refinement algorithm for LAEP, which is a range-free localization algorithm by using expected hop progress, has been p
Publikováno v:
Journal of Communications. :814-821
Publikováno v:
Journal of Electronics (China). 29:604-610
Spectrum sensing is the fundamental task for Cognitive Radio (CR). To overcome the challenge of high sampling rate in traditional spectral estimation methods, Compressed Sensing (CS) theory is developed. A sparsity and compression ratio joint adjustm