Introducing packet segmentation for the IEEE 802.11b throughput enhancement in the presence of Bluetooth

There is no center control mechanism in Bluetooth and IEEE 802.11b to co-operate their communication behavior and prevent collisions between them. To combat the interference, Bluetooth just hop to another frequency and retransmit the collided packet, while 802.11b transmitters will back off for a while then retransmit the packet again. In general, a long packet is likely to be collided more than a smaller one and would take longer time to retransmit it. Consequently, packet segmentation of larger packets is of interest as a potential strategy on the part of 802.11b transmitters in the presence of Bluetooth. In this paper, we evaluate the optimal packet size that could enhance the 802.11b throughput in the presence of Bluetooth. The results show that the performance increases substantially with appropriate segmented packet size compared to fixed payload.