2006 | OriginalPaper | Buchkapitel
Frame Size Adaptive MAC Protocol in Low-Rate Wireless Personal Area Networks
verfasst von : Eun -Chang Choi, Jae-Doo Huh, Kwang-Sik Kim, Moo-Ho Cho, Soo-Joong Kim
Erschienen in: Information Networking. Advances in Data Communications and Wireless Networks
Verlag: Springer Berlin Heidelberg
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Based on IEEE 802.15.4 standard for Low-Rate Wireless Personal Area Network (LR WPAN), this paper proposes a frame size adaptive Medium Access Control (MAC) protocol. Mean Burst length and mean Gap between bursts are measured by using training frames between two communication de-vices. With the mean Burst and Gap values, an optimal MAC frame size to meet the required FER is calculated. During communication period, FER is periodi-cally measured in a transmitting device. If the measured FER is lower than the required FER, MAC frame size is increased, else vice versa. Thus, channel re-sources can be more effectively utilized by sending optimal bits into one trans-mission frame. The proposed scheme is evaluated under various wireless chan-nel conditions in terms of the achieved throughput. Simulation results show that the proposed scheme achieves a much higher throughput than a non-frame size adaptive MAC protocol in LR WPAN does.