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A Community Network is a bottom-up network created by a community of people with the goal of building a self-owned, self-managed communication infrastructure. Community Networks are blooming, they range from small ones (tens of nodes) to gigantic ones (tens of thousands of nodes), they are made primarily of wireless links but in some cases they mix wired and wireless technologies. People running a...
The eHealth technology will change the way the health system is handled, mainly in developing countries, such as Brazil, where there is a huge shortage of healthcare professionals to assist the patients, especially for those living in rural and remote areas. The Context-Aware Mobile Approach (CAMA) seeks to improve the Brazilian primary healthcare system through context-aware eHealth facilities, such...
Telehealth applications such as Video-over-IP and remote sensor monitoring are rapidly growing in utilisation and it has now expanded to the patient's homes. These Telehealth applications are, however highly delay sensitive and require high quality (and bandwidth priority) in order to provide satisfactory performances. However, at the patient's home area network (HAN) environment, typically there...
New era of wireless communication is upon us. The approaching 4G (fourth generation) mobile communication systems are projected to handle higher data rates and mobile internet for rich media collaboration allowing faster and more reliable connectivity. Bangladesh telecommunication sector already entered into the 3G mobile data wave and its immediate sequence is 4G. This study is designed for the analysis...
XML has become a standard widely used in wireless networking technologies to improve flexibility and interoperability between heterogeneous applications. However, applying this technology to areas such as network management across a wireless embedded internet can pose significant challenges due to the verbosity of XML. A number of compression techniques and tools have been applied to this problem...
Internet of Things (IoT) services and technologies become more and more predominant in the current and future era of the Internet. Lot of devices and applications are developed and connected to the classical IP networks. As for any new network services testing and evaluation is made in the intranet environment in these days. Neither the efficiency measurement methods of the energy usage nor communication...
Mobile Internet access becomes a major research focus with the increase of mobile phones. This paper introduced and summarized a variety of wireless technologies supporting mobile Internet access. Firstly, the current progressing wireless access technologies were valued on their strengths and weaknesses. Then the newest mobility support researches and progresses over IP layer, such as MIP, NEMO, SIP...
With the rapidly gaining ground of the Internet of things, wireless sensor networks (WSNs) will be bound to permeate more and more applications. However, due to the nature of these applications such as harsh environment, resource-limited wireless sensor networks are usually fault prone. Therefore, it is essential to provide effective fault management techniques and robust fault management frameworks...
We present an application of an open source platform for wireless body sensor network called DexterNet to the problem of monitoring different subjects. The architecture of the system consists of three layers. At the body sensor layer (BSL), the integrated monitoring of a person's activities, geographic location, and air pollution exposures occurs. At the personal network layer (PNL), a wireless mobile...
We focus on the energy spent in radio communication by the stations (STAs) in an IEEE 802.11 infrastructure WLAN. All the STAs are engaged in web browsing, which is characterized by a short file downloads over TCP, with short duration of inactivity or think time in between two file downloads. Under this traffic, Static PSM (SPSM) performs better than CAM, since the STAs in SPSM can switch to low power...
With the development of wireless communication and internet technology, more and more companys take serious consideration on BPR (Business Process Reengineering). In elaborating domestic and foreign researches on BPR and value chain, the paper points out the research of BPR using value chain is orientation in the future. BPR is facing significant opportunity, but the successful probability of BPR...
Many existing and envisioned information network architectures such as cognitive radio networks, sensor and actor networks, quantum communication networks, next generation Internet, and interplanetary Internet have several common significant challenges to be addressed such as the increased complexity with large scale networks, their dynamic nature, resource constraints, heterogeneous architectures,...
ICT plays an indispensable role in the overall development of rural areas, especially in developing economies. There is an urgent need to bring the rural areas into the mainstream by providing them last mile connectivity, especially during natural disasters and calamities, when other modes of communications are severely hampered. This paper describes a low cost innovative solution for providing internet...
In this paper, we describe the approaches taken in the 4WARD project to address the challenges of the network of the future. Our main hypothesis is that the Future Internet must allow for the fast creation of diverse network designs and paradigms, and must also support their co-existence at run-time. We observe that a pure evolutionary path from the current Internet design will not be able to address,...
Video based monitoring system plays an important role in asset management. However, transmission of video data occupies large amount of bandwidth, especially in wireless communication environment. On the same time, searches and storage of video data is a troublesome problem in after-event investigation. This paper studies a non-video monitoring system which is based on RFID and sensors. The system...
We investigate the problem of finding minimum-distortion policies for streaming delay-sensitive but distortion-tolerant data. We consider cross-layer approaches which exploit the coupling between presentation and transport layers. We make the natural assumption that the distortion function is convex and decreasing. We focus on a single source-destination pair and analytically find the optimum transmission...
Summary form only given. Commencing with a brief historical perspective on the creation of both the Internet and wireless communications, a range of challenges related to the Wireless Internet are addressed. It is demonstrated, how 'point, shoot & share-style' video communications may result in the 'world-wide-wait' owing to the potentially excessive offered teletraffic, especially owing to the...
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