Interference Evaluation of Bluetooth and IEEE 802.11B Systems
Wireless Networks 9, 201–211, 2003 2003 Kluwer Academic Publishers. Manufactured in The Netherlands. Interference Evaluation of Bluetooth and IEEE 802.11b Systems N. GOLMIE ∗, R.E. VAN DYCK, A. SOLTANIAN, A. TONNERRE and O. RÉBALA National Institute of Standards and Technology, Gaithersburg, MD 20899, USA Abstract. The emergence of several radio technologies, such as Bluetooth and IEEE 802.11, operating in the 2.4 GHz unlicensed ISM frequency band, may lead to signal interference and result in significant performance degradation when devices are colocated in the same environment. The main goal of this paper is to evaluate the effect of mutual interference on the performance of Bluetooth and IEEE 802.11b systems. We develop a simulation framework for modeling interference based on detailed MAC and PHY models. First, we use a simple simulation scenario to highlight the effects of parameters, such as transmission power, offered load, and traffic type. We then turn to more complex scenarios involving multiple Bluetooth piconets and WLAN devices. Keywords: WPANs, Bluetooth, IEEE 802.11b, interference 1. Introduction In addition, there has been several attempts at quantifying the impact of interference on both the WLAN and Bluetooth The proliferation of mobile computing devices including lap- performance. Published results can be classified into at least tops, personal digital assistants (PDAs), and wearable com- three categories depending on whether they rely on analysis, puters has created a demand for wireless personal area net- simulation, or experimental measurements. works (WPANs). WPANs allow closely located devices to Analytical results based on probability of packet colli- share information and resources.
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