DocumentCode :
3294738
Title :
Revising buffering in multihop CSMA/CA wireless networks
Author :
Dousse, Olivier
Author_Institution :
Ernst-Reuter-Platz, Berlin
fYear :
2007
fDate :
18-21 June 2007
Firstpage :
580
Lastpage :
589
Abstract :
We look at a multihop wireless path with relay nodes running some CSMA/CA protocol. We show that current buffering schemes with a drop-tail policy lead to low throughput, independently of any other MAC layer issues. We propose a simple alternative buffering policy, where relay nodes are essentially bufferless. We show that even without buffering, the network can be stabilized in a regime where the link utilization is optimal, through very simple amendments to the MAC layer. Furthermore, the network operation stays self-organized and resilient to mild interference and transmission failures. Exploiting a packet/hole duality property of the system, we suggest extensions for handling bidirectional traffic along the path, and more general mesh network configurations.
Keywords :
buffer storage; carrier sense multiple access; radio links; telecommunication network reliability; telecommunication traffic; MAC layer; bidirectional traffic; buffering schemes; drop-tail policy; interference; link utilization; multihop CSMA-CA wireless networks; multihop wireless path; packet-hole duality property; revising buffering; transmission failures; Interference; Laboratories; Mesh networks; Multiaccess communication; Protocols; Relays; Spread spectrum communication; Throughput; Wireless networks; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sensor, Mesh and Ad Hoc Communications and Networks, 2007. SECON '07. 4th Annual IEEE Communications Society Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1268-4
Electronic_ISBN :
1-4244-1268-4
Type :
conf
DOI :
10.1109/SAHCN.2007.4292870
Filename :
4292870
Link To Document :
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