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Wireless powered communication network (WPCN) can prolong the lifetime of energy constrained wireless networks in a sustainable way without replacing or recharging the batteries. A popular approach for analyzing stochastic WPCN is to model the location of different nodes according to a homogeneous Poisson point process. However, it is more reasonable to place user equipments (UEs) around a power beacon...
Despite the advantages of deploying femtocells into cellular networks, the consequent cross-tier interference has seriously limited the network performance. Applying different power control techniques has been heavily discussed in 3GPP as an efficient approach for handling dominant interference scenarios. Instead of relying on system level simulations, this paper evaluates an analytical uplink power...
The evolution of TD-SCDMA is LTE TDD. But the scarcity of spectrum resource below 1GHz is one of the most serious problems in the deployment of LTE TDD. Digital Dividend spectrum, which is free up for the conversion from analog TV to digital TV, is the ideal frequency band to deploy LTE TDD below 1GHz. So the coexistence issue between Digital Terrestrial Television Broadcast (DTTB) and LTE TDD in...
Traffic modeling contributes remarkably to network design and performance evaluation in wireless networks. Various traffic models have been proposed for wireless networks thus far.. In order to provide a better understanding in this area, the article presents a detailed investigation to current studies of traffic models in different wireless networks. And then the origins of model differences are...
Our study demonstrated that caching scheme performs better in high density mobile networks than in sporadic circumstance. Based on the analysis of correlation between cache performance and the zipf-like user behaviors, we proposed some possible methods to improve cache performance in high density mobile networks.
BitTorrent file-sharing is one of the most prevalent P2P applications. An improved fluid model is proposed in this paper. It can be used to analyze the evolution of peers and predict the average file download delay of BitTorrent system in a network circumstance with bottleneck links which previous works seldom focus on. The main contribution of this model is that the underlying network structure is...
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