Title :
An accurate line of sight propagation performance model for ad-hoc 802.11 wireless LAN (WLAN) devices
Author :
Green, David B. ; Obaidat, M.S.
Author_Institution :
SRI Int., Princeton, NJ, USA
Abstract :
We propose a simplified and accurate path loss equation for calculating the free space path loss for 802.11 WLAN line-of-sight links with antennas between 1 and 2.5 meters in height. We validated the accuracy of our WLAN propagation model with empirical measurements using several wireless LAN systems. We compared our model with other models including Lee´s (1986), free space´s, Hata´s (1980) and Cost231 models and found that our model is superior for predicting the propagation performance of radios with very low antenna heights. This result is very useful for modeling and simulation of wireless LANs and mobile ad-hoc radio networks.
Keywords :
electromagnetic wave absorption; frequency hop communication; land mobile radio; losses; radiowave propagation; spread spectrum communication; wireless LAN; 1 to 2.5 m; BPSK; Cost231 model; FHSS; GFSK; Hata´s model; LOS propagation performance model; Lee´s model; QPSK; WLAN devices; ad-hoc 802.11 wireless LAN devices; antenna height; binary phase shift keying; complimentary code keying; free space model; free space path loss; frequency hopping; frequency hopping spread spectrum; gaussian frequency shift keying; line of sight propagation performance model; line-of-sight links; mobile ad-hoc radio networks; path loss equation; propagation performance prediction; quadrature phase shift keying; simulation; wireless LAN systems; Antennas and propagation; Electromagnetic propagation; Equations; Frequency; Fresnel reflection; Mobile computing; Phase modulation; Predictive models; Propagation losses; Wireless LAN;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.997466
