Poll-before-data multiple access
- 20 January 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
We introduce a new medium access control (MAC) protocol named PDMA (poll-before-data multiple access). Most prior MAC protocols aimed at avoiding collisions of data packets in networks with hidden terminals are sender-initiated, in that the sender transmits a short request to send (RTS) asking the receiver for permission to transmit. In contrast in PDMA, when a data packet arrives at the receiver, the receiver sends a ready-to-receive-and-transmit (RT2) packet stating the identifiers of a specific sender and receiver. A node receiving an RT2 packet addressed to it as a sender is enabled to send a data packet if it has one; otherwise, if the sender specified in the RT2 is quiet, the receiver specified in the RT2 sends a clear-to-send (CTS) packet, enabling the sender of the RT2 to send its own data packet free of collisions. PDMA is shown to avoid the collision of data packets with any type of packet. An analytical model is used to show that PDMA achieves higher throughput than prior collision-avoidance protocols for wireless networks, namely MACA-BI, FAMA NCS, and MACA. Average delays in PMA are also shown to be shorter than those in CSMA.Keywords
This publication has 8 references indexed in Scilit:
- MACA-BI (MACA by invitation). A wireless MAC protocol for high speed ad hoc networkingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Solutions to hidden terminal problems in wireless networksPublished by Association for Computing Machinery (ACM) ,1997
- Floor acquisition multiple access (FAMA) for packet-radio networksPublished by Association for Computing Machinery (ACM) ,1995
- MACAWPublished by Association for Computing Machinery (ACM) ,1994
- Multiple Access ProtocolsPublished by Springer Nature ,1990
- Packet Switching in Radio Channels: Part III--Polling and (Dynamic) Split-Channel Reservation Multiple AccessIEEE Transactions on Communications, 1976
- Packet Switching in Radio Channels: Part I--Carrier Sense Multiple-Access Modes and Their Throughput-Delay CharacteristicsIEEE Transactions on Communications, 1975
- Packet Switching in Radio Channels: Part II--The Hidden Terminal Problem in Carrier Sense Multiple-Access and the Busy-Tone SolutionIEEE Transactions on Communications, 1975