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Motivated by the fact that when selfish users choose their policies independently without any coordination mechanism, Nash equilibria could result in a network collapse, we develop in this paper a hierarchical distributed learning framework for decision-making in heterogeneous cognitive networks. We introduce the Nash-Stackelberg fuzzy Q-learning, with the network as leader that aims at maximizing...
UMTS networks allow multiple mobile users to access and share radio resource in High Speed Downlink Access (HSDPA). The HSDPA technique is proposed by 3GPP to maximize throughput and to enhance the downlink speed of data transmission in shared channels. In this paper, we propose a Two-Phase Packet scheduling Scheme for HSDPA. In designing of fast packet scheduling, we compromise delay and fairness...
Next Generation Wireless Networks (NGWNs) will be the convergence of fixed and mobile networking technologies, e.g., Ethernet, Wireless LAN, 2G/3G/4G, etc. This united ubiquitous network will consist of billions of mobile devices, each with multiple networking interfaces. These interfaces may belong to a set of diverse link layer technologies. Internet Protocol (IP) shall potentially be used as the...
The advanced wireless technologies make vehicle-to-vehicle communication possible. However, vehicular network has a limitation in terms of network topology rapidly change, which causes discontinuous connection. To support seamless connection, horizontal and vertical handovers are required. The good handover mechanism should take network parameters, user requirements, and application QoS into account...
Orthogonal Frequency Division Multiple Access (OFDMA) has already been the main multiple access technology for 3G long term evolution(LTE) and 4G. This paper analyzes characteristics of OFDMA multiple access technology and puts forward a new OFDMA handover algorithm (sub-carriers bidirectional arrayed handover algorithm, SBA). The simulation results show that, during handover process, SBA algorithm...
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