In this paper, we consider wireless networks with directional antennas using slotted ALOHA
medium access control. The channel model incorporates the effects of propagation loss and …

Directional antennas are a promising option for use in ad-hoc networks for a variety of
reasons, such as increased spatial reuse, reduced interference and enabling more efficient …

Directional antenna technologies have made significant advancements in the last decade.
These advances have opened the door to many exciting new design opportunities for …

The use of narrow beam directional antennas in wireless messaging has the potential of
improving the transmission quality, increasing base station capacity, and reducing the …

External interference can cause significant performance degradation in indoor wireless
systems such as third/fourth-generation mobile systems and WLANs. Strategic deployment …

The goal of this paper is to examine and evaluate the advantages of utilizing directional
antennas in a simple linear wireless network. We consider a one-dimensional …

The throughput of large wireless networks with regular topologies is analyzed under two
medium-access control schemes: synchronous array method (SAM) and slotted ALOHA. The …

The impact of directional antennas and multiantenna beamformers on radio transmission is
formulated in terms of the gain of the Rician-factor, the reduction of the root-mean-squared …

The capacity of ad hoc wireless networks is constrained by the interference between
concurrent transmissions from neighboring nodes. Gupta and Kumar have shown that the …

One method for improving wireless network throughput involves using directional antennas
to increase signal gain and/or decrease interference. The physical layer models used in …