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The technologies of Wireless local networks and cellular network are very popular and more and more service under the integrated heterogeneous environment. Stream Control Transmission Protocol (SCTP) is considered as an ideal to support the communication between them by enabling a mobile client to freely switch the IP address in different networks. In this paper, we propose an extended analytical...
IEEE 802.11 protocol is widely used in Wireless Local Area Networks (WLAN) for its high data transmission rates. The formation flying satellite system has a short inter-satellite distance, which is similar to WLAN. It may be a good choice to apply IEEE 802.11 protocol in inter-satellite communication to increase throughput. However inter-satellite distance is longer than what desired by WLAN, so IEEE...
The IEEE 802.11 standard supports multiple PHY rates. However, the IEEE 802.11 DCF in a multiple-rate environment may cause a performance anomaly. There have been many studies about the performance analysis and improvement of single- and multi-rate WLAN systems. However, there were a few studies about a generalized analysis on throughput and channel utilization for successful transmissions in multi-rate...
Common channel framework (CCF), a multi-channel mechanism proposed in 802.11 s, extends traditional DCF mechanism and is fully compatible with traditional 802.11 WLAN. According to the characteristics of CCF reaching maximum throughput in the state of no assigning common channel to transmit data, a method to improve the performance of CCF is proposed. In one collide field, under the condition of fixed...
A distinguishing feature of wireless mesh network is the use of multiple channels, which breaks through the limitation on data transmission efficiency and network capacity brought by single channel. Common channel framework (CCF), a multichannel mechanism proposed in 802.11s, extends traditional DCF mechanism and is fully compatible with traditional 802.11 WLAN. This paper focuses on the performance...
This paper focuses on AP buffer effect upon TCP fairness over WLAN, and proposes an estimation algorithm of AP buffer size for TCP fairness over WLAN based on average window size. The key contribution of our algorithm is that it uses the relation of average drop rate to average both window size and used window size, and employs the limited condition of average window size for TCP fairness. Accuracy...
IEEE 802.11a is a popular high-speed WLAN standard with a data rate up to 54 Mbps. The fundamental medium access control (MAC) mechanism of IEEE 802.11a is the contention-based distributed coordination function (DCF) which includes two packet transmission schemes, namely, the basic access and RTS/CTS mechanism. In this paper, by introducing a two-dimensional Markov model, we conduct an extensive analysis...
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