PERFORMANCE OF DIRECTIONAL MAC PROTOCOLS INAD HOC NETWORKS WITH POSITION ESTIMATION ERRORS

للكاتبين :

Kun Liu1, Amr Youssef2 , and Walaa Hamouda1

1

Department of Electrical and Computer Engineering

2Concordia Institute for Information Systems Engineering Concordia University

Montreal, Quebec, HEG 1M8, Canadae

ABSTRACT:-

Several recently proposed directional MAC proto-cols for mobile ad hoc networks incorporate the

positions of the destination stations, as well as the interfering ones, in the beamforming process at

each mobile station. Assuming perfect node position estimation, these protocols have shown to

provide a significant throughput improvement relative to the existing omni-directional protocols.

When perfect node position information is available, it was noticed that increasing the number of

antenna elements can play an important role in improving the total system throughput for these

directional MAC protocols.

We investigate the effect of inaccurate node position estimation on the throughput of these

protocols over both Gaussian and Ricean fading channels. Our results show that, in contrary to the

ideal case, as the position estimation error increases, the system throughput dramatically decreases

with the number of antennas.

تعليق واحد

  1. Great atircle, thank you again for writing.

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