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.
The exponential growth of mobile traffic is forcing operators to quickly increase the capacity of their networks by means of new technologies and advanced architectures. This capacity expansion not only brings increasing fixed costs for additional network infrastructures, but also inflates operational costs, which are becoming critical, mainly in terms of energy bills. In this perspective, monitoring...
With the advent of multiple radio interfaces on modern smart phones, simultaneous transmission and reception of data through via both mobile networks and WiFi networks has gained a considerable attention as a cost-effective means for mobile data offloading. In this paper, we present a practical SDN-based data offloading framework based on a Femto-WiFi Integrated network. The proposed framework take...
Internet traffic monitoring and analysis have been a very essential way in network management and optimization for the ISP. GPRS networks are increasingly carrying Internet traffic for Web browsing, Email and online games etc. In this paper, we proposed a Hadoop based cloud computing platform for high-speed network traffic analysis. We experimentally prove that our platform is capable of analyzing...
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...
The rapid introduction of new mobile data services presents many challenges to wireless service providers. Unlike voice services, whose traffic characteristics are well understood, new data services are far more volatile and their demand on network resources is harder to predict. Data volumes are exploding and impacting not only the ability of the network to support such traffic but are also driving...
Not only the fixed but also the mobile network operators emerge to face the challenge of performance monitoring. The performance monitoring for the high speed link (e.g., 10Gbit/s) requires the high speed table lookup for searching flow information from five tuples (IP addresses, protocol and port numbers) of a VoIP packet. Using a hash table and a content-addressable memory (CAM) can generally achieve...
WCDMA radio access networks are dimensioned using traffic models containing traffic characteristics for a number of services offered by the operators and their networks today. Recent trends have seen a new class of traffic emerging, driven by wireless sensor network applications and machine-to-machine communication. This communication between ldquothingsrdquo has traffic characteristics very different...
Experimental results are presented for end-point controlled handover of a stream of voice-like packet data traffic between two independent wireless networks. The handover was achieved by using a version of the stream control transmission protocol (SCTP) that had been modified to monitor link quality and switch the primary connection to the ldquobestrdquo quality link available, where quality is evaluated...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
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.