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One of the most important features of the evolving Fourth Generation (4G) wireless communication system is heterogeneous wireless access in which users could connect to several wireless access networks simultaneously. The new feature brings new challenges for the bandwidth allocation (BA) among heterogeneous networks. A non-cooperative bandwidth allocation game (NCBAG) algorithm for heterogeneous...
Network selection is one of key issues in the area of heterogeneous wireless networks. Actually there are lots of decision factors which are very useful for network selection. However, because the values of these decision factors belong to different types such as boolean, enumeration, discrete and continuous values, it is quite difficult to make use of these decision factors in traditional network...
Lots of works have showed that the wireless LAN frame traffic is self-similar and obeyed in the heavy-tailed distribution. This paper analyzes a frame traffic data collected from real IEEE 802.11 networks, and studies the impacts of each type of frame traffic (management frame traffic, control frame traffic, data frame traffic, and retransmission frame traffic) on characteristics of self-similarity...
In this study, we analyze the impact of different types of frame traffic on the self-similar behavior of the aggregated frame traffic, collected from the IETF 2005 conference. Our measurement results show that the different types of frame traffic have various impacts on the self-similarity of the aggregated frame traffic in different session periods, and these impacts are simultaneously related with...
This paper makes use of the fluid-based approach to model the throughput of TCP Veno flow over wired/wireless networks. A generalized formula is derived between Veno's throughput and its window evolution parameters, packet loss rate and round-trip time. Simulation experiments and real network measurements are conducted to validate the accuracy of this model.
One of the key issues in the next generation wireless cellular networks is to support multiple services, in which call admission control policy has to guarantee the different quality of service (QoS) requirement from diverse applications, and at the same time ensure the scarce bandwidth be utilized efficiently. In this paper, we propose a new call admission control scheme called dual dynamic threshold...
TCP Veno was recently proposed to eliminate TCP performance suffering in the wireless networks. Real network and live Internet measurements have validated Veno's significant performance improvement over Reno. In this paper, we revisit Veno's state distinguishing scheme, and give a detailed study of Veno's performance when three different recovery schemes: Partial ACK, SACK and PACK, are incorporated...
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