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The success of peer-to-peer live video streaming in wireline networks has inspired the development of mobile peer-to-peer streaming technologies. However, the traditional peer-to-peer live streaming techniques have been found to perform sub-optimal in wireless networks. Furthermore, the increasing energy consumption in wireless networks due to inefficient communication protocols has resulted in the...
Modern mobile devices comprise multiple interfaces for heterogeneous network technologies. However, currently implemented mechanisms to decide which one(s) to use and distribute application flows accordingly (i.e., solving the multihomed flow management problem, MFM) are rather coarse and do not leverage the opportunities. A user-centric quality-aware (QA) MFM has been proposed which optimises network...
With the rise of the user base of smartphones, the cellular networks are facing increasing uplink signalling traffic pressure caused mainly by the soaring background traffic of smartphone applications. Therefore, this paper studies the LTE radio resource control (RRC) state transition, which is highly related to the amount of signalling traffic, caused by the background traffic. Firstly, we propose...
A broadcast scheme based on probabilistic flooding technique for mobile wireless networks is proposed in this paper. This new broadcast scheme for wireless mobile networks combines the agility of the probability based schemes and the simplicity of the MPR schemes, where the dynamic broadcast routes are created based on a node's resources and connectedness. The proposed scheme does not place the responsibility...
This paper introduces a method for a base station to instruct a mobile station to perform an operation mode transition, the method is called BS-initiated mode transition and it includes the following steps: Receiving battery level information encapsulated in a Medium Access Control (MAC) header from the mobile station; determining if the mobile station can perform an operation mode transition based...
The wireless sensor network has promising future in the environment monitoring, such as river flood watching, ice storm watching, mine flood watch, forest fire watching. The wireless sensor network can observe the parameter such as the temperature, humidity for both underground and aboveground mine. During our experiment of the wireless sensor network in the river of Ontario, we gained a series experience...
Current mobile terminals are equipped with several network interfaces, which may be of different access technologies, both wireless and cellular. With multi-homed terminals, it becomes possible to use simultaneously the various interfaces - and not only to handoff from one to another. Furthermore, it becomes possible to associate the suitable interface to each application according to its requirements...
As mobile communication business rapidly developing, the distribution system of communication building often faces pressure to upgrade capacity. According to the system's configuration features of the mobile communication building, the paper applies the dynamic programming methods to the charging process of the building's batteries. Then this method could excellently release a great part of capacity...
Class D amplifiers are becoming the most feasible solution for embedded audio application. However, distortions due to the non-linear nature of switching stage are the main drawback for this amplifier topology. This paper discusses the design and implementation of high fidelity audio class D using sliding mode control scheme. This design method proves to be a cost effective solution for industrial...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
Three applications in wireless networks where model-free stochastic learning is applicable, are discussed. The learning based optimization problems are formulated and simulation results are presented. Some open issues are also discussed.
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...
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