Modeling directionality in wireless networks: extended abstract

ABSTRACT

The physical-layer models commonly used in current networking research only minimally address the interaction of directional antennas and radio propagation. This paper compares the models found in popular simulation tools with measurements taken across a variety of links in multiple environments. We find that the effects of antenna direction are significantly different from the models used by the common wireless network simulators. We propose a parametric model which better captures the effects of different propagation environments on directional antenna systems. We believe that adopting this model will allow more realistic simulation of protocols relying on directional antennas, supporting better design and more valid assessment of those protocols.

REFERENCES

• 1: Michael Buettner , Eric Anderson , Gary Yee , Dola Saha , Anmol Sheth , Douglas Sicker , Dirk Grunwald, A phased array antenna testbed for evaluating directionality in wireless networks, Proceedings of the 1st international workshop on System evaluation for mobile platforms, p.7-12, June 11-11, 2007, San Juan, Puerto Rico [doi>10.1145/1247721.1247723]
• 2: Ram Ramanathan, On the performance of ad hoc networks with beamforming antennas, Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing, October 04-05, 2001, Long Beach, CA, USA [doi>10.1145/501426.501430]
• 3: S. M. Sussman. A survivable network of ground relays for tactical data communications. Communications, IEEE Transactions on, 28(9):1616--1624, Sept. 1980.

INDEX TERMS

Primary Classification:
  I. Computing Methodologies
  I.6 SIMULATION AND MODELING
      I.6.5 Model Development
          Subjects: Modeling methodologies

Additional Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.1 Network Architecture and Design
          Subjects: Wireless communication

General Terms:
Experimentation, Measurement, Verification

Keywords:
antenna, directional, modeling, networking, propagation, wireless