DocumentCode :
2286753
Title :
Transmission power control techniques for MAC protocols in wireless sensor networks
Author :
Correia, Luiz H. A. ; Nogueira, Jose M. S.
Author_Institution :
Dept. of Comput. Sci., Fed. Univ. of Minas Gerais, Belo Horizonte
fYear :
2008
fDate :
7-11 April 2008
Firstpage :
1049
Lastpage :
1054
Abstract :
Communication is usually the most energy - consuming event in wireless sensor networks (WSNs). The lifetime of these networks is determined by the capacity of batteries and one of the biggest challenges is to reduce the energy consumed in the communication. Several techniques to reduce the energy consumption have been proposed in routing protocols: diminish the traffic of data, optimize the routes or the control of the topology. However, the management and operation of the node´s radio is responsibility of the medium access control (MAC) protocol. This thesis presents four new transmission power control (TPC) techniques for MAC protocols in WSNs. These techniques are based on the interaction between sensor nodes and take into account the limitations of resources such as processing, memory and energy in the calculation of the minimum of transmission power. To evaluate these techniques, four MAC protocols had been developed: iterative, attenuation, AEWMA and hybrid. The Iterative was the first MAC protocol with TPC developed exclusively for WSN. These protocols have been experimented in the Mica Motes2 platform, in diverse scenarios varying parameters such as internal and external environment, the distance among the communicating nodes, the occurrence of simultaneous transmissions, the use of multi-hop transmissions and node mobility. Results have shown that TPC protocols reduce the energy consumption by up to 57% in comparison to the protocols with fixed transmission power. Moreover, the protocols with TPC increase the throughput of the network while maintaining a very high delivery rate.
Keywords :
access protocols; power control; telecommunication control; wireless sensor networks; AEWMA protocols; MAC protocols; attenuation protocols; energy consumption reduction; hybrid protocols; iterative protocol; transmission power control techniques; wireless sensor networks; Access protocols; Batteries; Communication system traffic control; Energy consumption; Media Access Protocol; Network topology; Power control; Routing protocols; Wireless application protocol; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Network Operations and Management Symposium, 2008. NOMS 2008. IEEE
Conference_Location :
Salvador, Bahia
ISSN :
1542-1201
Print_ISBN :
978-1-4244-2065-0
Electronic_ISBN :
1542-1201
Type :
conf
DOI :
10.1109/NOMS.2008.4575277
Filename :
4575277
Link To Document :
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