A highly reliable broadcast scheme for IEEE 802.11 multi-hop ad hoc networks

Shiann Tsong Sheu, Yihjia Tsai, Jenhui Chen

Research output: Contribution to journalConference articlepeer-review

56 Scopus citations

Abstract

In wired networks, the broadcast data packets can be easily and safely delivered to destinations. Nevertheless, it is a big challenge to transfer the broadcast frames over the IEEE 802.11 based multi-hop ad hoc wireless networks due to the high bit error rate, the high collision probability, and the lake of acknowledgement (ACK). Unfortunately, most of routing protocols need the broadcast function to exchange important information between nodes. From our observations, the efficiency of the routing protocol, such as DSR and AODV, finding the path from source to destination is strongly depending on the supported broadcast scheme in the underlying media access control (MAC) protocol. In this paper, we will first investigate the uncertain broadcast problem in the IEEE 802.11 MAC protocol while delivering the necessary broadcast frames. Since no acknowledgement will be sent by any recipient of the broadcast frame in IEEE 802.11 MAC protocol, we will propose a highly reliable broadcast scheme to solve such uncertain problem. The proposed scheme, which is still compatible with standard, can efficiently minimize bandwidth consumption as well as propagation delay.

Original languageEnglish
Pages (from-to)610-615
Number of pages6
JournalConference Record - International Conference on Communications
Volume1
StatePublished - 2002
Event2002 International Conference on Communications (ICC 2002) - New York, NY, United States
Duration: 28 Apr 20022 May 2002

Keywords

  • Ad hoc
  • Broadcast
  • MAC
  • MANET
  • Multicast
  • RTS/CTS
  • WLANs

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