Communication Theory, Physical layer 3G, 4G and beyond, Sensor Network, Internet of Things, Mobile Device Architecture Research Papers (original) (raw)

Micro-location is the process of locating any entity with high accuracy (possibly in centimeters), while geofencing is the process of creating a virtual fence around a so-called Point of Interest (PoI). In this paper, we present an insight into various micro-location enabling technologies and services. We also discuss how these can accelerate the incorporation of Internet of Things (IoT) in smart buildings. We argue that micro-location based location-aware solutions can play a significant role in facilitating the tenants of an IoT equipped smart building. Also, such advanced technologies will enable the smart building control system through minimal actions performed by the tenants. We also highlight the existing and envisioned services to be provided by using micro-location enabling technologies. We describe the challenges and propose some potential solutions such that micro-location enabling technologies and services are thoroughly integrated with IoT equipped smart building.

- by Fahim Zafari and +1
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- E Marketing, The Internet of Things, Context-Aware Computing, Internet of Things
- by Aldo DP
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- Programming Languages, Object Database, History of Ideas, Knowledge Management

Wireless Personal Area Network System becomes
popular in replacing a wire technologies for short area range
communication system. Technologies such as Bluetooth, Wi-Fi
and ZigBee are used for this purpose but due to their low
transfer data rates they are unable to handle all those
applications which need high transfer rate like transfer of files
which has a size in GB’s. Ultra Wide Band is such a wireless
promising technology which covers all these aspects by using its
MBOFDM Infrastructure. MBOFDM structure supports data
rate up to 0.5 Gbps by dividing the 7.5 GHz broad frequency
spectrum of UWB into sub bands. Baseband portion of UWB
Transmitter is modeled in this paper which proves to be helpful
in the evaluation of various parameters of UWB.

The Internet of things can be defined as to make the 'things' connected to the Internet. The things will have identity in the internet, so that, it can be monitored, it can send the data, it can control or even it can be destroyed if no need anymore. One example area that I want to study is how to make effectively the secure Internet of Things to gather the data from the environments so that can get the precise agriculture. Securing the communication from sensors in the field to the gateway sensor then sent to the cloud, so the owner can monitor and make a decision. The goal is to have the precise agriculture with integrating the things in the Internet of Things, so that the farmer can get the good result. Security of the Internet of Things is start from the design the plant, communication protocol among the sensors with the station or gateway. All the data need to be confidential, integrity and authentication.

In this paper the scheduling and transmit power
control are investigated to minimize the energy consumption
for battery-driven devices deployed in LTE networks. To enable
efficient scheduling for a massive number of machine-type
subscribers, a novel distributed scheme is proposed to let machine
nodes form local clusters and communicate with the base-station
through the cluster-heads. Then, uplink scheduling and power
control in LTE networks are introduced and lifetime-aware solu-
tions are investigated to be used for the communication between
cluster-heads and the base-station. Beside the exact solutions,
low-complexity suboptimal solutions are presented in this work
which can achieve near optimal performance with much lower
computational complexity. The performance evaluation shows
that the network lifetime is significantly extended using the
proposed protocols.

This paper addresses the issue of high computational complexity associated with side information (SI) estimation in orthogonal frequency division multiplexing (OFDM) systems that implement selected mapping (SLM) to reduce peak-to-average power ratio (PAPR). The proposed method is based on a slightly modified SLM approach that enables the use of a low complexity binary detection criterion for SI estimation, without the need for SI transmission. Simulations show that the combined PAPR reduction and BER performance of the proposed method is similar to both pilot-assisted Maximum-Likelihood (PAML) SI estimation scheme and standard SLM that presumes perfect knowledge of SI. In addition, relative to the PAML scheme, the proposed method offers significantly reduced computational complexity.

Side information (SI) detection is normally needed to achieve successful data reception when selected mapping is implemented for reducing peak-to-average power ratio in orthogonal frequency division multiplexing systems. In severe frequency selective channel fading, existing pilot-assisted SI estimation schemes are ineffective especially when the number of pilots is limited, resulting in performance degradation in the form of increased BER. To address this problem, an alternative pilot-assisted SI estimation method based on a time-domain decision metric is proposed. Simulations show that when compared to a pilot-assisted SI estimation scheme based on frequency domain correlation, the proposed method provides improved SI estimation performance in the form of reduced SI detection error rate.

There are two trends in the research to develop future networks.
While the rst aims to introduce new technologies such as the Long Term
Evolution (LTE) and WiMAX with high-speed data. The second aimed at
providing clients with a ubiquitous connectivity via proposing new commu-
nication architectures to integrate di erent networking technologies and en-
abling mobile devices to switch seamlessly between them. Examples of such
architectures are Y-Comm, Mobile Ethernet and IEEE 802.21. In this paper
we will show how these research trends could be integrated. This is achieved
by discussing how future communication frameworks like Y-Comm could ful-
l the requirements and provide the functionalities of newly introduced tech-
nologies such as UMTS and LTE networks.

Asked to serve in an ongoing position as Editor for the International Review of Information Ethics, I join a team of seven editors for IRIE. "The IRIE is the official journal of the International Center for Information Ethics (ICIE). It envisions an international as well as intercultural discussion focusing on the ethical impacts of information technology on human practices and thinking, social interaction, other areas of science and research and the society itself."

- by Jared Bielby
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- Information Systems, Business Ethics, Comparative Religion, History