The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper investigates the bandwidth efficiency of packet based mobile backhaul in case of low rate, delay sensitive voice service. Evolved HSPA is a fully packet based mobile technology where the voice service is VoIP based. VoIP sources generate small packets periodically. The overhead on these packets is significant; it even exceeds the useful payload, causing efficiency problems on the mobile...
The integration of the widely spread 3rd Generation (3G) Universal Mobile Telecommunication System (UMTS) with the Wireless Local Area Networks (WLANs) has recently attracted considerable attention. However, addressing seamless and transparent handoff during mobility between these networks is still the biggest challenge to overcome. This paper evaluates the components of the handoff delay for the...
Efficient methods for analyzing vertical handoffs for IP based data sessions are essential for emerging heterogeneous data networks. This is mainly due to the high frequency of vertical handoffs experienced by roaming users in such internetworked environments. This paper presents an analytical approach for evaluating vertical session handoffs in such an environment where the packet arrivals follow...
Mobile IP is one of the popular mobility solution and a viable candidate for the Beyond 3rd Generation (B3G) networks such as the integrated 3rd Generation Universal Mobile Telecommunications System (UMTS) and the Wireless Local Area Networks (WLANs). Mobile IP has many configuration and enhancements that are proposed by IETF such as the Care-of-Address (CoA), Collocated CoA Mobile IPv6, and route...
In next generation wireless networks, Internet service providers (ISPs) are expected to offer services through several wireless technologies (e.g., WLAN, 3G, WiFi, and WiMAX). Thus, mobile computers equipped with multiple interfaces will be able to maintain simultaneous connections with different networks and increase their data communication rates by aggregating the bandwidth available at these networks...
As the concept of fixed-mobile convergence (FMC) is gaining popularity among operators and consumers, there is an increasing debate about the performance of the mobile-network-centric UMA architecture versus the IP-centric VCC architecture. While UMA-based FMC solutions are already launched for commercial use, VCC-based solutions are still in their trial stages. The purpose of this paper is to compare...
The growing demand for wireless and mobile services has set the recent research sights on mobility support for next generation IPv6 networks. To provide seamless communications for such networks, Fast Mobile IPv6 (FMIPv6) and Hierarchical Mobile IPv6 (HMIPv6) has been proposed. Moreover, 3GPP has introduced IP multimedia subsystem (IMS) as the next generation IP based infrastructure for multimedia...
The rapid increase and proliferation of mobile wireless technologies has led to the rise of new problems that fall under the umbrella of challenged networks, namely, intermittent network connectivity. This diversity in wireless devices, along with their convergence, has granted users access to multiple heterogeneous networks available in parallel. Nowadays, a user generally expects to be connected...
In next generation heterogeneous networks, mobiles users want to benefit from all the advantages of the integrated access networks by switching between them dynamically. In this paper, we propose a novel scheme for reducing handoff delay using the received signal strength (RSS) and the mobile station speed to reserve available resources for a user from its adjacent cells according to its current position...
This paper focuses on the performance of traffic mix which consists of both voice and data services. The paper deals with intra-frequency soft handover in a 3G networks where mobile stations are connected simultaneously to several base stations. The QoS of voice for mobile users in the mixed traffic environment is estimated. The results are compared with the performance obtained by deploying a scheduling...
This contribution addresses the case when live packet-switched video is used to enrich circuit-switched speech calls in mobile telephony. Circuit-switched and packet-switched transmissions generally operate on completely different transmission paths resulting in different QoS in terms of delay and loss rates. In this case, video and audio data recorded at the same time are not multiplexed together...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.