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Wireless sensor networks and traditional wireless networks have significantly different characteristics of performance and technical requirements. The traditional wireless networks MAC (medium access control) protocol can not be applied to sensor networks, suggest a number of related agreements against the various characteristics of sensor networks, this paper presents an adaptive cross-layer design...
Article proposes the existing problems of the QoS multimedia services in IEEE802.16, analyzes the disadvantage and advantage of current bandwidth scheduling strategy based on IEEE802.16. An improvement strategy of IEEE802.16 PMP network model is proposed based on existing strict priority scheduling strategy. Finally, through the simulation data, we proof the strategy can ensure the QoS performance...
With the rapid development of information technology, wireless network technology becomes more and more widespread, transmission efficiency of wireless network has been a research focus. This paper firstly has discussed the principles of aggregation of the use of packet technology in the feasibility of the use of WLAN, and specific circumstances of the packages fusion method by NS2 simulation achieved...
Media independence handover (MIH) is a scheme proposed by IEEE 802.21 working group to support the interlinkage of heterogeneous network. This paper introduces a handover proposal between WiFi and WiMAX based on MIH.A handoff decision algorithm based on fuzzy inference system is proposed for handoff decision of mobile system and simulates to verify the perfect performance.
An analytical model is proposed to describe the priority schemes of the enhanced distributed channel access (EDCA) mechanism of the IEEE 802.11e standard. EDCA provides class-based differentiated quality of service (QoS) to IEEE 802.11 wireless local area networks (WLANs). However, One of the main challenges with 802.11e EDCA is the configuration of the open parameters of this mechanism, namely arbitration...
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