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Small-cell caching utilizes the embedded storage of 5 small-cell base stations (SBSs) to store popular contents for the 6 sake of reducing duplicated content transmissions in networks and 7 for offloading the data traffic from macrocell base stations to SBSs. 8 In this paper, we study a probabilistic small-cell caching strategy, 9 where each SBS caches a(More)
Inter-cell interference coordination (ICIC) and resource allocation problems are fundamental challenges for the design of wireless networks. In this paper, we propose a distributed network inter-cell control scheme, and introduce a Belief Propagation (BP) framework to solve the optimization problem. The goal is to maximize the sum rate of those Base(More)
Evidence indicates that downloading on-demand videos accounts for a dramatic increase in data traffic over cellular networks. Caching popular videos in the storage of small-cell base stations (SBS), namely, small-cell caching, is an efficient technology for reducing the transmission latency whilst mitigating the redundant transmissions of popular videos(More)
Heterogeneous cellular networks (HCNs) with em5 bedded small cells are considered, where multiple mobile users 6 wish to download network content of different popularity. By 7 caching data into the small-cell base stations, we will design 8 distributed caching optimization algorithms via belief propagation 9 (BP) for minimizing the downloading latency.(More)
In this paper, we consider the inter-cell interference coordination (ICIC) problem in heterogeneous cellular networks (HCN) with randomly deployed small-cell base stations (SBS). Current research on ICIC mainly focuses on optimizing the spectrum and power allocations at base stations (BS), while the user-BS association is treated as a separate issue.(More)
This paper presents an image pre-processing method to separate leukocytes using cytological images, which is an efficient way for detection and classification of leukocytes. Traditional segmentation methods of cytological image are based on monochrome images, which often cause the loss of some useful information. We develop a segmentation method using color(More)
Wireless mesh network (WMN) can sense information and realize end-network transmission. It consists of numerous wireless sensors, the energy and communication ability of which are limited. A kind of novel VPF-based energy-balanced routing strategy for WMN has been presented in this paper. Most of the existing energy-efficient routing strategy always(More)