Warehouses scheduling is the problem of sequencing requests of products to fulfill several customers’ orders so as to minimize the average time and shipping costs. In this paper, a solution to the problem of multiple warehouses scheduling using the steady state genetic algorithm is presented. A mathematical model that organizes the relationships between customers and warehouses is also presente...

Multiple antenna system are projected to contribute a key role in potential multimedia wireless communication systems in the future. Such systems are predicted to provide high channel capacities in a limited bandwidth, which enables the efficient usage of spectrum. Essentially to the realization of these channel capacities are the characteristics it displays especially when analyzing the ergodi...

Gerhard Bauch and Joachim Hagenauer Institute for Communications Engineering (LNT) Munich University of Technology (TUM) Abstra t | We give an introduction to wireless systems with multiple transmit and receive antennas. Using multiple antenna systems is motivated by results on the capacity of multiple-input-multipleoutput (MIMO) channels. We describe different approaches to exploit these capac...

The study of economic behavior of service providers in a competition environment is an important and interesting research issue. A two-server queueing model has been proposed in Kalai et al. [11] for this purpose. Their model aims at studying the role and impact of service capacity in capturing larger market share so as to maximize the long-run expected profit. They formulate the problem as a t...

Consider a simple network flow problem in which there are n channels directed from a source to a sink. The channel capacities are unknown and we wish to determine a feasible network flow of value D. Flow problems with unknown capacities arise naturally in numerous applications, including inter-domain traffic routing in the Internet, bandwidth allocation for sending files in peer-to-peer network...

We determine the capacity regions for a class of timevarying multiple-access channels (TVMACs), when the underlying channel state evolves in time according to a probability law which is known to the transmitters and the receiver. Additionally, the transmitters and the receiver have access to varying degrees of channel state information (CSI) concerning the condition of the channel. Discrete-tim...