Conference Paper

Experimental and analytical study regarding transmission quality of Wireless LAN system - For implementation of heterogeneous wireless network -.

DOI: 10.1109/PIMRC.2011.6140051 Conference: IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2011, Toronto, ON, Canada, September 11-14, 2011
Source: DBLP

ABSTRACT In order to implement the heterogeneous wireless network using multiple wireless systems, it is important to comprehend the transmission quality characteristics such as the transmission throughput and delay, because the network control managements are performed based on these qualities. In this paper, we address the study results regarding the transmission quality characteristics of the Wireless LAN (WLAN) system, which is one of multiple wireless systems. The study covers the experimental examination regarding the statistical distribution characteristic of the transmission quality, their mutual relationship and their time fluctuation characteristic. Based on the established analytical model obtained by the WLAN experiment, we also discuss the method to estimate the delay (or throughput) from the measured throughput (or delay) and its estimation accuracy.

  • [Show abstract] [Hide abstract]
    ABSTRACT: The adoption of wireless communication technologies in industrial environments for supporting (soft) real-time applications heavily depends on the ability to grant bounded response times for messages, at least from a probabilistic point of view. This aspect is particularly important in factory automation systems, where response times are considered much more significant than other performance indices, such as throughput, that are usually considered in different application areas. The ever-increasing availability on the market of products and solutions based on the IEEE 802.11 standard and the introduction of the 802.11e amendment for enhancing the quality of service (QoS) and prioritizing traffic make this kind of communication technology interesting also for adoption in (loosely coupled) distributed control systems. This paper reports on some experimental measures and the related analysis that have been carried out on real 802.11g/e networks for better understanding the statistical distribution of response times and can be of help in characterizing these solutions when used to support noncritical real-time traffic.
    IEEE Transactions on Industrial Informatics 01/2007; 3:191-201. · 3.38 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: In Japan, several new Research and Development (R & D) projects have been started, whose main purpose is to attain the efficient use of the restricted resources of frequency bands. This paper introduces the objective and outline of the project in which we have been engaged. The test-bed facility has been developed and their features, specifications and some experimental results are also described. Our project focuses on cooperative heterogeneous radio networks to improve the reliability on the radio communication link. The technology developed in the project is considered to be advanced network technology that includes the cognitive radio system being studied in many research organizations.
    Cognitive Radio Oriented Wireless Networks and Communications, 2009. CROWNCOM '09. 4th International Conference on; 07/2009