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Avoiding Head of Line Blocking in Directional Antenna Vinay Kolar, Sameer Tilak and Nael B. Abu-Ghazaleh
 

Summary: Avoiding Head of Line Blocking in Directional Antenna
Vinay Kolar, Sameer Tilak and Nael B. Abu-Ghazaleh
Dept. of CS, Binghamton University
Binghamton, NY 139026000
{vinkolar,sameer,nael}@cs.
binghamton.edu
Abstract
One of the attractive features of directional antennas
is their higher channel reuse: by transmitting the sig-
nal only in one direction, an antenna avoids interfer-
ing with communication going on in the other directions
and focuses more of the power in the primary direction.
In existing directional MAC protocols a single queue is
used at the MAC layer; this is inherited from omnidirec-
tional implementations. However, while there is a single
channel state in omnidrectional transmission (either the
channel is busy or not), the state of the channel varies
with the desired direction of transmission in directional
antennas. Thus, existing implementations which use a
single FIFO queue potentially leads to Head of Line

  

Source: Abu-Ghazaleh, Nael B. - Department of Computer Science, State University of New York at Binghamton

 

Collections: Computer Technologies and Information Sciences