Title :
Performance Analysis of IEEE 802.11 Ad Hoc Networks with Cooperative ARQ in the Presence of Hidden and Exposed Terminals
Author :
Kormetzas, G. ; Alonso-Zarate, J. ; Alonso, L. ; Verikoukis, C.
Author_Institution :
Univ. of the Aegean, Greece
Abstract :
We present in this paper the analysis of an IEEE 802.11 network in the presence of hidden and exposed terminals when a Cooperative ARQ (C-ARQ) scheme is executed at the MAC layer. When spontaneous helpers transmit to assist in a failed transmission, the area exposed to the original transmission increases in comparison to non-cooperative ARQ schemes. In this paper we quantify this effect and we evaluate the relevance of designing efficient protocols to combat the exposed terminal problem.
Keywords :
access protocols; ad hoc networks; wireless LAN; IEEE 802.11; MAC layer; ad hoc networks; cooperative ARQ scheme; failed transmission; performance analysis; spontaneous helpers; Ad hoc networks; Automatic repeat request; Media Access Protocol; Performance analysis; Physical layer; Relays; Signal analysis; Telecommunications; Throughput; Topology;
Conference_Titel :
Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-4148-8
DOI :
10.1109/GLOCOM.2009.5425387
