A Comparative Simulation Platform for Ieee 802

Wireless Personal Area Networks (WPANs) are an emerging technology for future short range indoor and outdoor multimedia and data centric applications. In this paper our work in modeling and performance assessment of the operation of the 802.15.4 MAC layer, we have identified a number of issues that enhanced the performance of WPAN when compared to 802.11 Standards. The bridging function automatically created in the 802.15 standard but not in 802.11 standard because sensing nodes created in 802.15 standard. The 802.15 is performed by the coordinator of the source Node, which periodically visits the child nodes as an ordinary node. The coordinator node within the time slots of the active portion of the super frame may reserve slots to allow dedicated access to other nodes. The bridge used by the coordinator can deliver its data to the child nodes and more adaptable to control overall traffic.