Packet Error Rate Analysis of IEEE 802.11b under IEEE 802.15.4 Interference

This paper presents an interference model of IEEE 802.11b wireless local area network (WLAN) affected by IEEE 802.15.4 wireless personal area network (WPAN). The packet error rate (PER) of the IEEE 802.11b under the interference of the IEEE 802.15.4 is analyzed, and is obtained by the bit error rate (BER) and the collision time. The safe distance ratio can be obtained from the PER. Further, this paper suggests a packet length to reduce the effect of the IEEE 802.15.4 interference and obtain a maximum throughput of the IEEE 802.11b. The analytic results are validated using the simulation

I. Introduction

As the 2.4 GHz Industrial, Scientific, and Medical (ISM) band utilization increases, it becomes important to understand how different wireless devices may affect each other. Because IEEE 802.11b (WLAN) [1], IEEE 802.15.1 (Bluetooth) [2], and IEEE 802.15.4 [3] are commonly used in this ISM band, a device adopting one standard exposes to a high level interference of other devices adopting other standards.