For a pair of positive parameters D,χ, partition P the vertex set V an n-vertex graph G=(V,E) into disjoint clusters diameter at most D each is called (D,χ) network decomposition, if supergraph G(P), obtained by contracting P, can be properly χ-colored. The decomposition said to strong (resp., weak) has D, i.e., for every cluster C∈P and two vertices u,v∈C, distance between them in induced G(C)...

ieee 802.11e standard is proposed to support quality of service (qos) in wireless local area networks (wlans). the distributed access method of 802.11e, enhanced distributed channel access (edca), prioritizes traffic generated by delay-sensitive applications by increasing probability to access medium for this type of traffic. edca resets the contention window (cw) of mobile stations to a minimu...

This paper investigates the network location problem for single-server facilities that are subject to congestion. In each network edge, customers are uniformly distributed along the edge and their requests for service are assumed to be generated according to a Poisson process. A number of facilities are to be selected from a number of candidate sites and a single server is located at each facil...

This article presents a Radial Basis Neural Network (RBNN) based islanding detection technique. Islanding detection and prevention is a mandatory requirement for grid-connected distributed generation (DG) systems. Several methods based on passive and active detection scheme have been proposed. While passive schemes have a large non detection zone (NDZ), concern has been raised on active method ...