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WiFi offloading has been exploited as a quick and viable solution to decrease the burden on cellular networks. In this paper, we study the problem of deploying new WiFi access points (AP) in a city-wide area for offloading purposes. Different than previous work which look at the problem only from operator's perspective and targets the maximization of offloaded traffic volume, we approach the problem...
In this paper, we present an online landmark selection method for distributed long-term visual localization systems in bandwidth-constrained environments. Sharing a common map for online localization provides a fleet of autonomous vehicles with the possibility to maintain and access a consistent map source, and therefore reduce redundancy while increasing efficiency. However, connectivity over a mobile...
Opportunistic Network has become an international hotspot in according with the popularity of various mobile intelligent terminals. But the nodes with limited communication capabilities cannot satisfy the growing of large content data transmission. Aim to these issues, we propose a novel communication capacity calculation model of Opportunistic Network based on the classical Random Direction mobile...
In recent years, as mobile devices increase, the demands for measuring the available bandwidth in a wireless network increase more and more to provide high quality network services. The available bandwidth is one of the most important parameters to determine the sending rate in WAN optimization. Pathload [2] is a technique to measure the available bandwidth by detecting the point where the receiving...
The results of research of the main trends and prospects of transport distribution networks development (Mobile backhaul) and the possibilities of using fixed telecommunication systems of terahertz band wireless communication in the framework of building mobile networks 5G are shown. Described designed and experimentally investigated terahertz range radio communication (130–134GHz) with application...
Organizational issues of the backhaul network using Long Term Evolution technology are considered. Backhaul connections for different network segments are analyzed. A model of the backhaul network using Multiprotocol Label Switching technology is proposed to form the transport basis for existing networks. The bandwidth and transporting performance of the network is estimated.
Tremendous increasing of demands in mobile networks introduces a set of new challenges for future 5G networks. Although, network densification has a huge potential to increase network capacity, backhaul channels are still a bottleneck in this chain. In this paper, we have proposed a new approach for optical backhaul based on OWTDMA network. The novelty of proposed approach is in time-wavelength resource...
A large part of the data transmitted over the Internet today consists of video streaming services, mainly due to the growth of services like Youtube, Skype or WebEx. The need for an adaptive video stream arose as a mobile robot with real-time video streaming capability has been developed. ARC-ROVER is a robot that could connect to the Internet via 3G technology, and that could be controlled over the...
Mobile Edge Computing (MEC) provides mobile and cloud computing capabilities within the access network. Network Functions Virtualization (NFV) leverages standard IT Virtualization technology to decouple the network functions from the underlying physical infrastructure. Basing on the ICT demand, MEC can be consolidated into NFV, as a network element within access network. This paper presents an architecture...
This paper presents a new mechanism for data transmission over mobile networks. The ultimate goal of designing the next generation mobile network is to have a single network that can support all applications with different data attributes. The proposed mechanism in this paper is inspired by the Mechanism Design Theory that is an emerging branch of game theory and has been used successfully in economics...
In the challenging world of mobile devices, there is a huge need for satisfying the requests of millions of mobile users in a single response. Wireless data broadcasting is the most suitable way of disseminating public information to a number of mobile users. The way of disseminating information must be energy and latency efficient enough so that it can cope with the limitations of a mobile device...
Software-defined networking (SDN) and in-network caching are promising technologies in next generation wireless networks. In this paper, motivated by the flow control in SDN, we propose an approach to solve bandwidth provisioning problem in software-defined mobile networks (SDMNs) with jointly considering in-network cache under uncertain flow rate. We present a flow control problem supporting bandwidth...
We propose the use of Small Cell Forum application program interface mapped over Radio over Ethernet frames to realize a transport interface for mobile fronthaul where the function of the base stations is split between MAC and PHY layers for 5G mobile with a centralized radio access network configuration. We confirmed that this approach successfully reduced the bandwidth required for the fronthaul...
Mobile Edge Computing (MEC) aims to provide mobile and cloud computing capabilities within the radio access network, and emphasizes the openness of the internet which can transfer the real-time radio network information into context-related services. In this article, we research the state-of-the-art technology of mobile and cloud convergence, then propose WiCloud, a MEC platform, which integrates...
Mobile telephony based on UMTS uses finite-state control schemes for wireless channels and for signaling across the network. These schemes are used systematically in various phases of the communication and are vulnerable to attacks that can bring down the network through unjustified bandwidth allocation and excessive signaling across the control plane. In this paper we identify those system parameters...
It is well-known that the spurious fast retransmission and timeout widely exist in the course of vertical handover when a mobile node (MN) moves from a longer transmission delay network into a shorter one. Some solutions for the problems have been discussed in a lot of literatures for non-Cognitive Radio (non-CR) scenarios. One of them, bicasting is the main method to improve the transmission performance...
Having an effective technique for bandwidth allocation is very important in wireless communications. Artificial Immune Systems, a relatively new meta-heuristic for solving optimization-related problems, is investigated in this study to design a cellular channel allocation framework. In this study, mobile hosts are allowed to continue interacting with the cells that they are currently in, even when...
Active Antenna Systems (AAS) technology is one of several advanced features that enable a mobile network operator to cost-efficiently increase its network capacity to cope with the exponential mobile data traffic growth and the ever more demanding performance requirements. AAS can be exploited to perform e.g. Virtual Sectorisation (ViS), i.e. using beamforming to flexibly position a virtual small...
The system model of mobile peer-to-peer (P2P) medical streaming and Mobile Medical P2P Streaming Data Scheduling Algorithm (MMP2P) are proposed based on this model. Mobile P2P network is introduced to the transmission architecture of medical streaming with this system model. In this algorithm, the critical layer and mixed priority are proposed based on MLayerP2P model [7] to solve the problems of...
Mobile data networks exhibit highly variable data rates and stochastic non-congestion-related packet loss. These challenges result in key performance bottlenecks in current Transmission Control Protocol (TCP) implementations: bandwidth inefficiency and large end-to-end delay. This work addresses these challenges by first developing a Sliding Interval based Rate Adaptation (SIRA) that tracks bandwidths...
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