IEEE 802.15.3 MAC在802.11上的模擬

IEEE 802.11 WLAN deployments have been mushroomed into every corner of the world in the recent years. Although wireless technology has saved a lot of time and energy for the users, the original media access mechanism cannot satisfy the needs of wireless multimedia applications. Subsequently, researches are continually being proposed on improving QoS requirements.. IEEE 802.11 was also amended into IEEE 802.11e for the same reason. In another area, IEEE 802.15.3 standards were also published to provide QoS for Wireless Person Area Networks. They attempt to provide a more efficient way to meet the multimedia requirement with low-power consumption and high data rates. The appearance of UWB standards has gained a lot of attention since it may be a new milestone for portable electronics consuming devices. However, relative products are still rarely seen in the present markets. Also, we haven’t seen relative experiments based on IEEE 802.15.3 MAC. We implemented IEEE 802.15.3 superframe mechanism on the interface of IEEE 802.11. We utilized the UDP, High Resolution Timers, and the natural IEEE 802.11 CSMA/CA to achieve the superframe functions with considered parameters. Also, we simulated VoIP connections on our UWB system under the best real-time requirements. The maximum capacity is 12 calls under the limitation of IEEE 802.11b MAC. However, we have proved the feasibility of the IEEE 802.15.3 MAC and the fine QoS it supports.