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This paper focuses on the energy management problem of ultra dense wireless networks. The work modes of small cells are controlled by the software defined approach to reduce the system energy consumption. Considering the quality of service (QoS) requirements of users and coverage ratio requirement, the energy minimization problem are formulated as a mixedinteger nonlinear programming (MINLP) problem...
The co-channel interference becomes the main influence factor in the cellular network with the universal frequency reuse. In this paper, we investigate the downlink resource allocation for a cellular network with two-hop cooperative relay, considering the influence of the co-channel interference. We firstly study a randomized transmission scheme, where the transmitter in each cell sends data according...
In a wireless sensor network (WSN) with specially deployed cluster heads (CHs), association relation between sensor nodes and the CHs is important as it affects the radio resource allocations, which further determine the overall network throughput, energy consumption, and other performance. In a lot of cases, the CHs are placed in random locations, and strong overlapping may exist between their coverage...
In this paper we study dynamic quality of service scheme in GSM/GPRS wireless network. A load balancing architecture constructed by distributed intelligent agent has been presented to support real time or burst data services. Fuzzy neural network was employed to predict GPRS traffic by learning examples. Meanwhile, we have presented a traffic estimation algorithm and a simple decision mechanism to...
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