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The paper presents system level simulation results on future base station energy saving using a time-triggered sleep model. The energy efficiency of future base station is compared in macro cellular network against a comparable baseline without usage of sleep modes. Furthermore, results for corresponding 4G case are shown using a restricted set of sleep modes supported by 4G networks. The paper also...
To reduce the energy consumption of a smartphone, multiple data transfer requests from applications can be bundled together and granted at once in order to reduce the time the radio interface is on. The side effect of bundling is the increased delay experienced by mobile applications. While several bundling algorithms have been proposed in the literature, a general and systematic solution to balance...
Ideally, users in cognitive radio networks (CRNs) are capable of sensing and exploiting any potential transmission opportunities in the available spectrum band ranging from 30 KHz to 300 GHz. With the multiple-diverse-band spectrum, the network can provide more radio resources and capacity to a large number of CR users. However, the multiband scenario (e.g., TV band + 2/3G band + 4/5G band) also introduces...
The advancements of Information and Communications Technologies (ICT) have contributed to an explosive growth of high-volume, high-velocity and high-variety information assets, and the era of Big Data has emerged. The infrastructure-based networks are becoming increasingly overloaded, while the cost of maintaining and expanding the infrastructure to accommodate the Big Data communications remains...
Recent development in wireless local area networks have made them potential enough to be used in various applications such as Voice Over Internet Protocol (VoIP), Voice Over Wireless Local Area Network (VoWLAN) and many more. Power saving protocols are used in order to conserve energy. This is addressed at medium access control layer so that wireless radio can be turned on (wake state) and off (sleep...
The capacity limits of the Random Access Channel (RACH) of Long Term Evolution (LTE) for highly dense Machine-to-Machine communications are studied in this paper. We consider the case study when a high number of devices attempt to transmit information to the same base station in a very short period of time. Simulations have been performed considering several parameter configurations related to the...
The green communication draws a lot of attention in recent years. Meanwhile, as a promising technology, cognitive radio will constitute an important part of the future communication networks. Energy consumption of cognitive radio network is worthy studying, which is analyzed in this paper applying stochastic network calculus. A multi-channel cognitive radio network model is introduced. Stochastic...
The paper investigates the balance between Quality of Service (QoS) and power consumption for a traffic queue. Automatic adaptation to the power of the packet processing engine is sought through a heuristics and an optimal control strategy. The study allows to track the behavior of the system over time, thus avoiding the optimization of the steady state behavior of the system, which is hardly applicable...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
We present the analytical model and the electrical characterization of a controllable delay component for a micropipeline architecture suitable for being designed with a semicustom design approach. An interesting feature of the component is that it is lockable, i.e., it can be controlled in an on/off fashion, permitting synchronous operation for testing purposes by means of an opportune architecture...
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