2017 13th International Wireless Communications and Mobile Computing Conference (IWCMC)

Provides an abstract for each of the presentations and may include a brief professional biography of each presenter. The complete presentations were not made available for publication as part of the conference proceedings. View full abstract»

Dynamic Adaptive Streaming over HTTP (DASH) was introduced to enable high video quality streaming over HTTP. DASH depends on the adaptation logic at the client to choose which video bitrate to stream from the content server for each chunk. For clients receiving video over a cellular network, the cellular first hop tends to be the bandwidth bottleneck and can exhibit significant swings in available... View full abstract»

We present the results from a measurement-based performance evaluation of wireless networks based on IEEE 802.11n and IEEE 802.11ac standards in an indoor environment, with the aim to analyze their performance under high definition streaming video applications. We focus our study on analyzing the highest performance of these standards using off-the-shelf equipment, both with synthetic TCP and UDP ... View full abstract»

As computationally powerful mobile devices with high-resolution screens have become ubiquitous, network operators are facing the problem of coping with the huge traffic load caused by various video streaming applications. One approach to mitigate the problem is to dynamically offload parts of the traffic to Wi-Fi networks that offer higher data rates at lower costs. Offloading can be performed in ... View full abstract»

This paper solves the joint problem of admission control and routing for the video transmission in software-defined networking (SDN). We utilize next generation network called SDN technology to construct an architecture for the proposed combined optimization problem. Our heuristic algorithm of the proposed combined optimization problem can be deployed on this architecture. Based on this background... View full abstract»

This paper considers adaptive transmission of Scalable Video Coding (SVC) stream over a fading channel in Energy Harvesting (EH) aided communication systems. The aim is to enable the transmitter having the ability of adaptively adjusting the number of video layers to be transmitted based on the available energy. Since the depletion of the energy in the battery impacts the interruption of the video... View full abstract»

With the popularity of IPTV in television industry, IPTV operators pay more attention on user's experience so that they could gain more revenue under fierce competition. Quality of Experience (QoE) is used to describe the user's degree of satisfaction and the prediction of QoE is gradually to be the interest for IPTV operators. To solve this problem, we propose a QoE prediction algorithm. Specific... View full abstract»

Although H.264 standard is the most efficient video codec, it is sensitive to transmission error over noisy channels. This issue is achieved by several error resilience/concealment techniques, to deal with packet losses. Whereas, these typical techniques are not suited for streaming video transmission which requires high quality. In fact, since the H.264 standard provides different type of frame, ... View full abstract»

In this paper, we consider a point-to-point single antenna communication system where the receiver decodes information and harvests energy at the same time. Two practical schemes, namely power splitting scheme and time switching scheme, are investigated, in which the receiver splits or switches signals for information decoding and energy harvesting. We derive the characteristics of the formulated ... View full abstract»

In this paper, we consider a wireless communication pair powered with radio frequency (RF) signal, in which the transmitter first harvest energy from an energy access point and then transmit information to the destination. Optimization problems aiming at maximizing throughput are investigated with a consideration of two types of power constraints at the transmitter: i) short-term power constraint,... View full abstract»

Deployment of Device-to-Device (D2D) communication within dense heterogeneous networks is a key solution in order to face the intense demand for high data rates and quality of the service in future 5G networks. However, this imposes challenges to develop innovative network selection mechanisms that account for both energy efficiency and user experience. In this paper, we propose a network associat... View full abstract»

Millimeter wave (mmWave) links have the potential to offer high data rates and capacity needed in fifth generation (5G) networks, however they have very high penetration and path loss. A solution to this problem is to bring the base station closer to the end-user through heterogeneous networks (HetNets). HetNets could be designed to allow users to connect to different base stations (BSs) in the up... View full abstract»

Adaptive bitrate streaming is one of the most popular methods to deliver high definition video content for HTTP clients. Commonly used techniques rely primarily on the estimation of network bandwidth and/or buffer state client-side. Inaccurate estimation leads to performance degradation due to a lack of correct bitrate encoding per chunk, and poor network utilization as a result of inflexible tran... View full abstract»

For crowd sensing applications, the inaccuracy and conflict of the reported samples, commonly caused by untrained participants and heterogeneous mobile devices, have received more and more attention. Given this, constructing a high-quality radio map of iBeacons via crowd sensing is very challenging. In this paper, we resort to the family of robust estimation and design a robust radio map construct... View full abstract»

the recent advancement of networking technology has enabled the streaming of video content over wired/wireless network to a great extent. Video streaming includes various types of video content, namely, IP television (IPTV), Video on demand (VOD), Peer-to-Peer (P2P) video sharing, Voice (and video) over IP (VoIP) etc. The consumption of the video contents has been increasing a lot these days and p... View full abstract»

Purchasing behavior analysis plays a crucial role in pricing, recommendation, and market strategy designing. One of the fundamental questions that arises in purchasing behavior analysis is to understand, characterize and estimate purchasing capability. In this article, we investigate the patterns of purchasing capability from the perspective of network usage of smartphone consumers based on a larg... View full abstract»

Railroad environments are generally considered to be dangerous workplace environments. The types of risks encountered there are comparable to the construction industry, ranking among the highest in workplace fatalities. However, these two industries also employ millions of people and thus safety has always been a major concern to both industries. These efforts, by industry and academia, are now st... View full abstract»

In Wireless multimedia sensor networks (WMSNs), one of the most important issues is to balance video data coding versus the perceived video quality at the sink, while maximizing the network lifetime. That is, better quality generates higher data rates and consequently consumes additional resources (i.e. energy). Finding such a balance is not obvious, especially in a distributed fashion. Previous r... View full abstract»

In today's world, video streaming rose above all other types of traffic. In fact, providing this service with a high quality presents the most challenging task among the advancements in networking technologies. Researchers are trying to help creating a more efficient network where congestion, broadband limitations and skyrocketing number of users present ever-diminishing obstacles. When it comes t... View full abstract»