Enhanced Adaptive Frequency Hopping for Wireless Personal Area Networks in a Coexistence Environment

— In this paper, we present an enhanced adaptive frequency hopping (EAFH) mechanism for improving the performance of frequency hopping-based wireless personal area networks (WPANs) under frequency-static and frequency-dynamic interference. The proposed mechanism monitors the overall packet error rate (PER) of the system to determine the right number of channels to be excluded from the hopset. Then based on the PER of individual channel, it decides whether to exclude a certain channel or not. Finally, proper packet length is associated with those channels remaining in the hopset. These decisions, which pertain to hopset size and packet length, are made so as to optimize the performance of the hopping system in a coexistence environment. We developed an analytical model to justify the behavior and performance of the proposed mechanism. Simulations are conducted under an environment of some collocated Bluetooth (BT) piconets and a Wi-Fi network to validate the developed model and show t...

• Type: Conference
• Year: 2007
• Where: GLOBECOM
• Authors: Alex Chia-Chun Hsu, David S. L. Wei, C. C. Jay Kuo, Norio Shiratori, Chung-Ju Chang
• Keywords: Enhanced Adaptive Frequency, GLOBECOM 2007, Overall Packet Error, Packet Length, Telecommunications