439 search results - page 86 / 88 » Channel Modeling of Wireless Networks in Tunnels |
ICASSP
2009
IEEE
14 years 24 days ago
2009
IEEE
—Spectrum access is an important function of cognitive radios for detecting and utilizing spectrum holes without harming the legacy systems. In this paper, we propose novel coope...
GLOBECOM
2009
IEEE
14 years 24 days ago
2009
IEEE
—This paper analyzes the carrier-to-interference ratio of the so-called shotgun cellular system (SCS). In the SCS, basestations are placed randomly according to a two-dimensional...
VTC
2007
IEEE
14 years 9 days ago
2007
IEEE
— Wireless transmission based on cooperation promises to bring performance improvements in multi–node networks. Several cooperative schemes have appeared in the literature, and...
VTC
2007
IEEE
14 years 9 days ago
2007
IEEE
Abstract—Group-orthogonal multicarrier code-division multiple access (GO-MC-CDMA) has been proposed as a multiplexing technique for the uplink segment of wireless systems. The di...
TWC
2010
13 years 22 days ago
2010
It is known that Wideband Code-Division Multiple Access (W-CDMA) networks are limited by interference more than by any other single effect. Due to the frequency selectivity of the ...