Introduction - If you have any usage issues, please Google them yourself
In this paper, we address a new unexplored problem
- what are the optimal patterns to achieve connected coverage in
wireless networks with directional antennas. As their name implies,
directional antennas can focus their transmission energy in
a certain direction. This feature leads to lower cross-interference
and larger communication distance. It has been shown that with
proper scheduling mechanisms, directional antennas may substantially
improve networking performance in wireless networks.
In this paper, we propose a set of optimal patterns to achieve
full coverage and global connectivity under two different antenna
models, i.e., the sector model and the knob model. We also
introduce with detailed analysis several fundamental theorems
and conjectures. Finally, we examine a more realistic sensor
model, where sensing range and communication range may both
vary randomly. Results show that our designed patterns work
well even in unstable and fickle physical environment.