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Using an agent-based modeling method, we study market dynamism with regard to wireless cellular services that are in competition for a greater market share and profit. In the proposed model, service providers and consumers are described as agents who interact with each other and actively participate in an economically well-defined marketplace. Parameters of the model are optimized using the Levenberg-Marquardt...
This paper describes a newly developed wireless access system for the wide area ubiquitous network (WAUN), a large cell-based public sensor network. It introduces two key technologies to achieve WAUN with wide area coverage. The first is a digitalized radio over optical fiber (DROF) subsystem that allows cost-effective commercial packet based networks to transfer wireless RF signals among distributed...
Many industrial and medical scenarios today are building on mobile devices as their end systems. These devices are typically connected to backend systems via the mobile phone network with their corresponding data services. Today's network protocols are optimized for reliable transfer of voice traffic, however, available bandwidth and latency for data traffic may vary significantly with location and...
In today's cellular networks, it becomes harder to provide the resources for the increasing and fluctuating traffic demand exactly in the place and at the time where and when they are needed. Moreover, a cellular network which can cover indoor areas and hot-spots is a complicated and expensive task. Therefore, a new hierarchical topology is put forward to solve the problem, and the topology have application...
In mobile P2P systems over 3G cellular networks, traditional peer selection algorithms with the idea of traffic localization are not suitable due to the architecture and characteristics of 3G cellular networks. In this paper we propose a novel peer selection algorithm named CFPL for mobile P2P systems over 3G cellular networks. By taking not only the available uplink bandwidth of peers but also the...
Cyber foraging is a pervasive computing technique where small, mobile devices offload resource intensive work to stronger, nearby surrogate computers in order to preserve energy and achieve better performance. The problem with relying only on local resources is, that the availability of such resources may be scarce in many environments. In this paper we therefore argue that a third tier should be...
The present and next generation mobile network will support terminal mobility, personal mobility and service provider portability, making global roaming seamless. In future we need to balance heavy load. This necessitates research into the design and performance of high throughput database technologies used in mobile systems to ensure that future systems will be able to carry efficiently the anticipated...
Along the growth of internet traffic, the penetration of internet access from mobile user has been increased. By augmenting mobile data traffic, the mobile network capacity limits have become significant issues. To cope with the increased mobile user data to cellular radio networks, several offload approaches such as femtocells have been proposed. With regard to 3G core network offload, Selected IP...
We study the feasibility of multimode radio fingerprinting for indoor localization with smart phones. Leveraging the sensing capabilities of these devices (WiFi radio, cellular communications radio, accelerometer, magnetometer), we present an application integrating both offline and online phases of fingerprinting in the same smart phone, and delivering an accuracy of up to 1.5 meters. Moreover, a...
One of major objectives of the 4G wireless network architecture is to facilitate seamless mobility of users between heterogeneous networks while satisfying QoS requirements. The moment at which a user should switch from the current network to another where better resources can be provided is still a hot research topic. This work studies a new criterion for triggering the vertical handoff process....
The population of cellular phone roamers has been increasing every year. Most of them may want to use their original phone numbers while others may want to use other phone numbers of visiting countries. We are interested in providing multiple phone numbers across heterogeneous networks, which will lead various business opportunities. Therefore, we present a software framework which will provide multiple...
This paper describes a highly mobile collaborative patient-centric, self-monitoring, symptom recognition and self intervention system along with a complementary clinical nursing tool to aid in collaborative patient/clinician chronic cardiac disease management. Our system is composed of a mobile smart phone and wearable sensor suite linked through blue tooth and cell phone technology to a backend data...
Near Field Communication (NFC) is a short-range communication technology and has been applied around the world. The most common service of NFC will be micropayments. Technically, the card emulation mode of NFC will simulate mobile devices such as cell phones into stored value cards, and then debit from external readers. Apart from simulating cell phones as stored value cards, read-write mode of NFC...
In this paper we assess the impact of the on-board base station emissions, on terrestrial mobile station. The scenario consists of multiple interfering links (multiple aircrafts). The results showed that there is visibility of the on-board networks in terms of noise floor increase especially for GSM-1800 MHz networks, and the output of the base station should be adjusted below 5 dBm, if we want to...
The wireline backhaul of cellular networks plays a critical role in connecting cells to the rest of the telecom world and to each other. As the radio and air interfaces have evolved, so too has the backhaul. The architectures and transport technologies used for wireless backhaul in the US will be described.
Information or content centric networking is believed by many to have great potential to be the appropriate networking paradigm for the future Internet. In information centric networking, focus is shifted from the end-points in the network to the information objects themselves, with less care being placed on from where the information is fetched. In addition to the benefits this networking paradigm...
One main objective of this paper is to propose novel mechanisms to support low latency handover at authentication level using network selection, security context management and mobility and handover management in future telecom ecosystem to allow ubiquitous access to the Internet and services to any individual on the move. This access should be possible anytime anywhere while ensuring the right level...
In this paper, we derive closed-form expressions for the call dropping probability and call completion probability for a cellular network with general distributions for the cell dwell time. In particular, we consider a non-homogeneous cellular network in which the handoff request failure in each cell follows a uniform distribution. We assume throughout this paper that the channel holding time is exponentially...
The ultimate objective of network planning is to achieve the best performance and profitability with the minimum network investment. In this paper, we investigate the use of the genetic algorithm in order to find "good" feasible solution for the global topology planning problem of Universal Mobile Telecommunications System (UMTS) networks. The latter has been shown to be NP-hard as it is...
Automation of radio network management is a key determination to work reduction for wireless operators. Self configured and self optimized network is a major feature for Long term Evolution (LTE). This paper proposes a procedure for self optimization and continuous update procedure of GSM neighbor cell list in E-UTRAN system. This method makes use of mobile measurement to update the neighbor cell...
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