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For MAC (Media Access Control) protocol not providing QoS(Quality of Service) guarantees. With the increase of multimedia sevices in wireless networks(for example:voice, video, etc), when the networks get crowded, real-time applications will decrease its performance. We proposed a wireless network algorithm for 802.11e, witch supports fixed nodes and mobile nodes, and also swiches and new connections...
In this paper, we propose a new medium access control (MAC) protocol, called cooperative access with relay's data (CARD) for multi-rate wireless local area networks (WLANs). CARD allows remote nodes to transmit their information at a higher data rate to access point (AP) by using intermediate nodes as relays. Particularly, under CARD, a relay node sends its own data packet after forwarding a packet...
Dynamic channel allocation (DCA) and transmit power control (TPC) are known as efficient tools to accommodate the explosive demand for broadband wireless access services, by utilizing the limited radio resources while satisfying predefined quality of service (QoS). However, the high complexity of the interactions between discrete DCA and continuous TPC renders a close-form solution to the joint optimization...
In this paper, we analyze the throughput performance of a new access protocol, called Cooperative Access with Relay's Data (CARD) for multi-rate wireless local area networks (WLANs). CARD allows remote source nodes to transmit their information at a higher data rate to Access Point (AP) by using intermediate nodes as relays, particularly, a relay node sends its own data packet after forwarding a packet...
Emerging high-density WLANs in urban areas and enterprises offer great potential to accommodate the anticipated explosion of demand for wireless data services. To make it successful, it is critical that the network utilizes the limited radio resources efficiently while satisfying predefined quality of service (QoS) requirements. In this paper, we develop a real time and open ended algorithm for joint...
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