In order to migrate toward 4G, studies on 3G LTE(Long Term Evolution) have been announced recently in the 3GPP(3rd Generation Partnership Project) and standardization is under way. Therefore, 3G LTE(Long Term Evolution) systems have been designed and developed over many countries. We also have been developing a 3G LTE testbed system at ETRI. 3G LTE system is adopting OFDM (Orthogonal Frequency ...

The emergence of third generation mobile system (3G) makes video transmission in wireless environment possible, and the latest 3GPP/3GPP2 standards require 3G terminals support H.264/AVC. Due to high packet loss rate in wireless environment , error resilience for 3G terminals is necessary. Moreover, because of the hardware restrictions, 3G mobile terminals support only part of H.264/AVC error r...

This paper first describes the applications of 3G and beyond wireless networks and general trends. To address these advanced applications, WCDMA HSDPA promises to provide services of up to 10Mbps and higher spectral efficiency for packet data. It represents a major evolution of the air interface since 1997 when the concept of 3G was adopted. We can called it “3.5G” in this paper to differentiat...

The aim of this paper is to show the possible coexistence of an HAP and a terrestrial component of 3G networks at a single carrier frequency. The main goal is to compare the basic parameters of terrestrial and HAP component 3G networks modeled in suburban (macrocell) and urban (macro/microcell) areas and to demonstrate the way they impact on each other. This study should present what we assume ...

This paper presents an overview of a satellite based broadcast layer to enhance the 3G and beyond 3G systems in the delivery of Multimedia Broadcast/Multicast Services (MBMS), as identified within the European IST integrated project MAESTRO. The foreseen content delivery architecture, also referred to as Satellite Digital Multimedia Broadcast (S-DMB) architecture, shall become an enabler for th...

The stream cipher SNOW 3G designed in 2006 by ETSI/SAGE is a base algorithm for the second set of 3GPP confidentiality and integrity algorithms. In this paper we study the resynchronization mechanism of SNOW 3G and of a similar cipher SNOW 3G⊕ using multiset collision attacks. For SNOW 3G we show a simple 13-round multiset distinguisher with complexity of 2 steps. We show full key recovery chos...

Shoji Hamao, Yuji Yoshida [Summary] Mobile phone networks in Japan are switching from 3G to 3.9G/4G (LTE hereafter). However, there are some overlapping frequency bands between 3G and LTE. Further, mixed 3G and LTE networks will remain in place for some years due to the high cost of replacing legacy 3G network infrastructure. Consequently, measuring instruments that can obtain stably outcome ne...

Network Simulator 3 (NS-3) enables the interaction of simulated network nodes with real ones through the use of special emulated network devices (EmuNetDevices) and real time execution. A virtual node can use an EmuNetDevice to bind its network device to a real network device of the computer hosting the simulation; however, the real network device must operate at MAC layer and be persistent. Th...

Thomas and Patrik are working on a stream cipher called SNOW 3G. In 2006, it was chosen as the centerpiece of new set confidentiality integrity algorithms for Universal Mobile Telecommunications System (UMTS). 2008, Böhm published an article named "Statistical Evaluation Stream Cipher 3G." He put randomness 3G key generator to test. As test tool, uses NIST statistics package, which consists thr...

One of the most interesting UMTS networks features is their integration with the 2G networks that provides seamless Endto-End services. Current widely deployed 2G and 3G networks provide InterRAT (Inter Radio Access Technology) mechanisms enabling interoperability between them in a manner that is almost transparent to the subscriber. These enable maximum benefit from 3G services while ensuring ...