This paper is a tutorial review on important issues related to code-division multiple-access (CDMA) systems such as channel capacity, power control, and optimum codes; specifically, we consider optimum overloaded codes that achieve errorless transmission in the absence of noise for the binary and nonbinary cases. A survey of lower and upper bounds for the sum channel capacity of such systems is...

Interest for high speed weigh-in-motion of vehicles, or HS-WIM keeps growing worldwide. The main purpose such systems is checking weights vehicles in a self manner, order to impose penalty overloaded ones. Overloaded may cause several problems as safety issues, road deterioration unfair competition. Walloon Public Service (WPS) has dealt with the settings and approval system Belgium. latest res...

In the proposed work, if one service provider is found to be overloaded, it utilizes the spectrum of the other service provider which is found to be underutilized. Thus, CR nodes senses the best available channel for sharing and it provides the list of available channels to the overloaded service provider to utilize the under utilized spectrum efficiently. Spectrum sharing among service provide...

In the national airspace system, sectors get overloaded due to high traffic demand and inefficient airspace designs. Overloads can be eliminated in some cases by redesigning sector boundaries. This paper extends the Voronoi-based sector design method by automatically selecting the number of sectors, allowing three-dimensional partitions, and enforcing traffic pattern conformance. The method was...

An antenna array is overloaded when the number of cochannel signals in its operating environment exceeds the number of elements. Conventional space-time array processing for narrow-band signals fails in overloaded environments. Overloaded array processing (OLAP) is most difficult when signals impinging on the array are near equal power, have tight excess bandwidth, and are of identical signal t...

Frenzied executives who fidget through meetings, lose track of their appointments, and jab at the "door close" button on the elevator aren't crazy--just crazed. They suffer from a newly recognized neurological phenomenon that the author, a psychiatrist, calls attention deficit trait, or ADT. It isn't an illness; it's purely a response to the hyperkinetic environment in which we live. But it has...