학술논문
A Transmit Power Control Algorithm for Data Acquisition Systems
Document Type
Conference
Author
Source
2012 IEEE 75th Vehicular Technology Conference (VTC Spring) Vehicular Technology Conference (VTC Spring), 2012 IEEE 75th. :1-5 May, 2012
Subject
Language
ISSN
1550-2252
Abstract
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, 1-hop area, forced multi-hop area, and 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 1-hop area. The network capacity using the proposed TPC algorithm is evaluated by a computer simulation. By this computer simulation, it is shown that the network capacity of TPC is better by about 2.8 times than that of No-TPC.