In this article we propose to facilitate local peer-to-peer communication by a Device-to-Device (D2D) radio that operates as an underlay network to an IMT-Advanced cellular network. It is expected that local services may utilize mobile peer-to-peer communication instead of central server based communication for rich multimedia services. The main challenge of the underlay radio in a multi-cell e...

In this paper we present an interference analysis which reveals capacity reserves for a hierarchical GSM radio network. In the investigated concept a low-power Cordless Telephony System reuses the frequencies of a cellular GSM system based on Total Frequency Hopping (T-FH) multiple access. Based on a novel simulation method, which considers the dynamics of a T-FH cellular network, we present re...

This paper presents a novel method for radio map construction that simultaneously interpolates the received signal power values over space and frequency domains. Radio maps can be used to improve spectrum management localization systems, which are related wireless systems in general such as cellular Internet of Things (IoT) networks, vehicular communications. Researchers have shown crowdsourcin...

 Radio Frequency Identification (RFID) is used to identify the characteristics of an object wirelessly using radio waves. The purpose of this technology in this study is mainly focused on healthcare for inventory management and theft control replacing the manual logs. The storage and tracking of high-cost inventory items is developed. Automatic reordering and billing interfaces are designed for...

The exponential growth of cellular radio, WLANs and the Internet sets the context for a discussion on the role and objectives of 4G. In this paper OFDM is proposed as a leading candidate for a 4G cellular communications standard. The key design considerations and link parameters for a 4G OFDM system are identified and initial physical layer performance results are presented for a number of tran...

This note covers fundamental cellular radio concepts which are at the core of providing wireless communication service to subscribers on the move using limited radio spectrum.

The growth of cellular users using to communicate at any place and any time increases the signaling activities among the cellular networks. To reduce the network costs and better usage of radio resources, an efficient location management scheme: location updating and paging strategies are essential to improve the network performance. This paper presents a mixed location management strategy that...

General Packet Radio Service (GPRS) is a complex data network which upgrades current second generation GSM networks, offering true high-speed internet (IP) and network connectivity over existing GSM cellular networks. The increasing population of mobile users leads to congestion problems in these systems, and motivates the development of more efficient management schemes. This project deals wit...

Next generation wireless systems consist of heterogeneous wireless networks. Wireless LAN (WLAN) and cellular mobile radio systems will be important part of heterogeneous networks. Universal mobile telecommunication system (UMTS) provides wide-area coverage, high mobility but relatively low data rate. WLAN is designed for low-range, high/medium data rate access, low mobility and can be used as ...

Double Reuse Digital Systems using Sectored Cells Yasuaki Kinoshita and David K. Asano Department of Information Engineering, Shinshu University, Nagano, Japan Abstract|To enhance frequency utilization e ciency, cellular mobile radio systems widely use a sector cell structure for the base stations. In this paper, the conceptual design formula previously reported are extended for frequency doubl...