In this paper, we investigate the network connectivity of wireless sensor networks with
directional antennas. In particular, we establish a general framework to analyze the network …

This paper presents the design, signal processing, and field measurements of SPIDA, a
direction-finding antenna for the 2.4 GHz ISM band, intended for both communication and …

Considering a disk of unit area with n nodes, we investigate the capacity of wireless
networks using directional antennas. First, we study the throughput capacity of random …

Increasingly, directional antennas are being used in wireless networks. Such antennas can
improve the quality of individual links and decrease overall interference. However, the …

Connectivity is a crucial requirement for wireless sensor network deployments. Without
being able to guarantee a reasonable level of connectivity, many critical network operations …

In this article, we address a new unexplored problem: what are the optimal patterns to
achieve connected coverage in wireless networks with directional antennas. As their name …

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 …

Capacity is one fundamental problem in wireless Ad hoc networks. Deploying directional
antennas to wireless networks can reduce interference among concurrent transmissions and …

Directional antennas in wireless sensor networks (WSNs) have several advantages
including the enhanced capacity of the network, longer range of transmission, better spatial …

Most of studies only consider that wireless sensor networks are equipped with only omni-
directional antennas, which can cause high collisions. It is shown that the per node …