Abstract
This article presents an analysis of wireless personal area networks with low transmission rate, utilized more and more often in industrial or alarm systems, as well as in sensor networks. The structure of these systems and available ways of transmission are defined by the IEEE 802.15.4 standard. The main characteristics of this standard are given in the first part of this article. The second part contains the description of simulation tests that have been realized. Their results make available an evaluation of the effective transmission rate of a transmission channel, the resistance to the phenomenon of hidden station as well as sensibility to the problem of the exposed station.
Highlights
In the past few years, the interest concerning the Wireless Personal Area Networks – WPAN, has been growing in a very important way
The LR-WPAN networks are characterized by very low energy consumption, simplicity of their structure making possible to implement the transmission protocol on 8-bit microcontrollers, as well as low costs of receiving and transmitting equipment
A LR-WPAN network offers a high capacity of the system and a very fast identification of equipment appearing in its range
Summary
In the past few years, the interest concerning the Wireless Personal Area Networks – WPAN, has been growing in a very important way. In the recent period we can clearly observe a clear distinction between solutions that are currently created, resulting in a subdivision of the IEEE802.15 standard defining WPAN networks into four specialized thematic groups. The first of these groups (IEEE802.15.1) concerns the development of the Bluetooth network, considered as a system of medium transmission rate. The results of the studies presented in the further part of this article apply to the last one of the abovementioned systems
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