Title :
WLCp1-11: The Head-of-Line Blocking Problem on Exposed Terminals in MANETs
Author :
Deng, Jing ; Qian, Yi
Author_Institution :
Dept. of Comput. Sci., Univ. of New Orleans, New Orleans, LA
fDate :
Nov. 27 2006-Dec. 1 2006
Abstract :
In mobile ad hoc networks (MANETs), the hidden and the exposed terminal problems affect the throughput of the medium access control (MAC) protocols. Several MAC schemes have been proposed to solve these problems by allowing the exposed terminals to send their packets concurrent with the on-going transmission. Due to their locations, the exposed terminals are likely to have data packets for neighbors that are temporarily unavailable to receive. This leads to the so- called head-of-line (HOL) blocking problem. In this work, we propose the exposed terminal scheduling (ETS) technique to solve the problem. In the ETS scheme, all nodes collect the local topology and transmission information to make sure that they will not send to those temporarily unavailable nodes. The ETS shuffle (ETSS) scheme is proposed to mitigate the problem when such local topology and transmission information are unavailable. Simulation results are presented to support the claimed benefits of the proposed techniques.
Keywords :
access protocols; ad hoc networks; mobile radio; telecommunication network topology; telecommunication terminals; ETS scheme; MAC schemes; MANET terminals; exposed terminal scheduling technique; head-of-line blocking problem; medium access control protocols; mobile ad hoc networks; network topology; Access protocols; Centralized control; Communication system control; Computer science; Media Access Protocol; Mobile ad hoc networks; Mobile communication; Network topology; Throughput; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0356-1
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2006.904
