DocumentCode :
564884
Title :
A Transmit Power Control Algorithm for Data Acquisition Systems
Author :
Ozaki, Kazuyuki ; Wen, Yun ; Fujita, Hiroshi ; Lv, Chao ; Tian, Jun ; Wu, Jianming ; Yoshida, Makoto
Author_Institution :
Fujitsu Labs. Ltd., Kawasaki, Japan
fYear :
2012
fDate :
6-9 May 2012
Firstpage :
1
Lastpage :
5
Abstract :
Recently, wireless many-to-one networks have been attracting much attention and wireless sensor ad-hoc networks are applied to various applications. In ad-hoc networks using carrier sense multiple access with collision avoidance (CSMA/CA), the capacity is drastically decreased by the hidden node problem. In this paper, we assume a many-to-one network and propose a transmit power control (TPC) algorithm to avoid the hidden node problem. In our proposed TPC algorithm, a 1-hop area, a forced multi-hop area, and a multi-hop area are defined. All nodes in the 1-hop area adjust their transmit power as they can sense each other´s transmit data, and all nodes in the forced multi-hop area and multi-hop area control their transmit power as they connect to a gateway (GW) with multi-hop and reduce the interference to nodes in the 1-hop area. The network capacity using the proposed TPC algorithm is evaluated by computer simulation. By this computer simulation, it is shown that the network capacity of TPC is better by about 2.6 times than that of No-TPC.
Keywords :
ad hoc networks; carrier sense multiple access; data acquisition; internetworking; radiofrequency interference; telecommunication congestion control; wireless sensor networks; 1-hop area; CSMA/CA; TPC algorithm; carrier sense multiple access; collision avoidance; computer simulation; data acquisition system; forced multihop area control; gateway; hidden node problem; interference; network capacity; transmit power control algorithm; wireless many-to-one network; wireless sensor ad-hoc network; Ad hoc networks; Interference; Multiaccess communication; Peer to peer computing; Power control; Spread spectrum communication; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2012 IEEE 75th
Conference_Location :
Yokohama
ISSN :
1550-2252
Print_ISBN :
978-1-4673-0989-9
Electronic_ISBN :
1550-2252
Type :
conf
DOI :
10.1109/VETECS.2012.6240270
Filename :
6240270
Link To Document :
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