DocumentCode :
2446635
Title :
MAC layer design for UWB LDR systems: PULSERS proposal
Author :
Bucaille, Isabelle ; Tonnerre, Arnaud ; Ouvry, Laurent ; Denis, Benoît
Author_Institution :
THALES Commun., Colombes
fYear :
2007
fDate :
22-22 March 2007
Firstpage :
277
Lastpage :
283
Abstract :
This paper details the medium access control (MAC) layer designed in the PULSERS project for low data rate (LDR) systems, whose main features are low power consumption, low complexity location and relaying capabilities. The MAC developed in PULSERS is based on the IEEE 802.15.4 standard, which, in spite of many virtues, is not the ideal solution for the targeted UWB applications. Thus, the MAC implemented in the project deviates from the standard in a few areas such as the support to peer-to-peer communications, the systematic usage of guaranteed time slots for data transmissions (TDMA), dedicated time slots for ranging or allocation requests, specification of a new ranging procedure, and finally, the definition of a relaying functionality in layer 2. Furthermore, as recent application studies have revealed that mesh networking is necessary for most of the targeted applications, mesh algorithms have also been specified and will be implemented in the next release of the PULSERS MAC layer. The paper first presents the applications targeted in the project. Then, it describes the MAC layer proposal, putting the emphasis on its major specificities in comparison with the IEEE 802.15.4 standard. The expected performances are also provided through OPNET simulation results. Finally, the paper focuses on the localization procedures implemented in the MAC layer, and proposes some enhancements of the current implementation with respect to localization.
Keywords :
access protocols; data communication; peer-to-peer computing; personal area networks; ultra wideband communication; IEEE 802.15.4 standard; MAC layer design; OPNET simulation; PULSERS project; UWB LDR systems; data transmission; localization procedures; low-data rate systems; medium access control layer; mesh networking; peer-to-peer communications; power consumption; time slots; Communication standards; Data communication; Energy consumption; Media Access Protocol; Peer to peer computing; Power system relaying; Proposals; Relays; Standards development; Time division multiple access;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Positioning, Navigation and Communication, 2007. WPNC '07. 4th Workshop on
Conference_Location :
Hannover
Print_ISBN :
1-4244-0871-7
Electronic_ISBN :
1-4244-0871-7
Type :
conf
DOI :
10.1109/WPNC.2007.353646
Filename :
4167852
Link To Document :
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