Search Results - "Gelabert, X."

Handover Performance and Power Consumption Analysis of LTE Mobile Relays by Tayyab, M., Koudouridis, G. P., Gelabert, X., Jantti, R.

“…Mobile relay node (MRN) is one of the cheaper options for reliable communication when users are moving by public transport (i.e. bus, tram, train, subway,…”
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Signaling Overhead and Power Consumption during Handover in LTE by Tayyab, M., Koudouridis, G. P., Gelabert, X., Jantti, R.

“…In this paper, we address the signaling overhead and the power consumption that results from the transmission of handover-related signaling in a Long Term…”
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A Simulation Study on Handover in LTE Ultra-Small Cell Deployment: A 5G Challenge by Tayyab, M., Gelabert, X., Jantti, R.

“…Future cellular networks need to support data hungry applications with enhanced data rates possibly via cell densification (ultra-small cells). The key…”
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Uplink Reference Signal Based Handover with Mobile Relay Node Assisted User Clustering by Tayyab, M., Koudouridis, G. P., Gelabert, X., Jantti, R.

“…In today's cellular networks, an increasing number of connected devices on-board in fast-moving vehicles would require more efficient handover (HO) procedures…”
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Exploiting the Operating Point in Sensing-Based Opportunistic Spectrum Access Scenarios by Gelabert, X., Sallent, O., Perez-Romero, J., Agusti, R.

“…Spectrum sensing is one key enabler towards opportunistic spectrum access in cognitive radio networks. Such scenarios allow cognitive users (a.k.a. secondary…”
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Flexible Spectrum Access for Opportunistic Secondary Operation in Cognitive Radio Networks by Gelabert, X., Sallent, O., Perez-Romero, J., Agusti, R.

“…In this letter a Discrete-Time Markov Chain (DTMC) framework is adopted to capture the effect of flexible spectrum channelization for the opportunistic access…”
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Operating point selection for primary and secondary users in cognitive radio networks by Gelabert, Xavier, Akyildiz, Ian F., Sallent, Oriol, Agustí, Ramon

“…This paper addresses the problem of opportunistic access of secondary users to licensed spectrum in cognitive radio networks. In order to avoid interference to…”
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Radio Access Congestion in Multiaccess/Multiservice Wireless Networks by Gelabert, Xavier, Sallent, Oriol, Perez-Romero, Jordi, Agusti, Ramon

“…This work addresses the problem of radio access congestion control and resource allocation in scenarios where multiple available radio access technologies…”
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Cognitive Radio enabling opportunistic spectrum access in LTE-Advanced femtocells by Herranz, C., Osa, V., Monserrat, J. F., Calabuig, D., Cardona, N., Gelabert, X.

“…The Cognitive Radio (CR) paradigm provides mechanisms and methodologies for an utmost and efficient use of scarce spectrum resources. Among its…”
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Receiver Power Consumption during Handover in LTE by Tayyab, M., Koudouridis, G. P., Gelabert, X., Jantti, R.

“…Recently, handover (HO) has gathered huge interest as the cellular mobile users desire for better quality of service (QoS) and continuous connection has…”
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Uplink reference signals enabling user-transparent mobility in ultra dense networks by Gelabert, X., Qvarfordt, C., Costa, M., Kela, P., Leppanen, K.

“…This paper proposes a novel user-transparent mobility concept based on the transmission of uplink reference signals (beacons) using Zadoff-Chu signature…”
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On Managing Multiple Radio Access Congestion Events in B3G Scenarios by Gelabert, X., Perez-Romero, J., Sallent, O., Agusti, R.

“…Among the common radio resource management (CRRM) functions that are responsible for the proper allocation of resources in a multi-access network, congestion…”
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Secure Virtual Mobile Small Cells: A Stepping Stone Towards 6G by Rodriguez, J, Koudouridis, G. P, Gelabert, X, Tayyab, M, Bassoli, R, Fitzek, F. H. P, Torre, R, Abd-Alhameed, R, Sajedin, M, Elfergani, I, Irum, S, Schulte, G, Diogo, P, Marzouk, F, de Ree, M, Mantas, G, Politis, I

“…As 5th Generation research reaches the twilight, the research community must go beyond 5G and look towards the 2030 connectivity landscape, namely 6G. In this…”
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A 4-Dimensional Markov Model for the Evaluation of Radio Access Technology Selection Strategies in Multiservice Scenarios by Gelabert, X., Perez-Romero, J., Sallent, O., Agusti, R.

“…In order to support the conceptual development of common radio resource management (CRRM) algorithms, this paper provides an analytical approach to the…”
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A performance evaluation framework for control loop interaction in Self Organizing Networks by Gelabert, X., Sayrac, B., Jemaa, S. B.

“…The Self Organizing Network (SON) concept is a promising paradigm aiming to reduce both the capital and operational expenditures (CAPEX/OPEX) in future…”
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A novel framework for the characterization of dynamic spectrum access scenarios by Perez-Romero, J., Gelabert, X., Sallent, O., Agusti, R.

“…An efficient and utmost utilization of radio spectrum resources has stimulated the introduction of what has been termed dynamic spectrum access methodologies…”
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Evaluation of Radio Access Congestion in Heterogeneous Wireless Access Networks by Gelabert, X., Perez-Romero, J., Sallent, O., Agusti, R.

“…This work takes as a reference the scenario of heterogeneous radio access networks where several radio access technologies (RATs) coexist and cooperate…”
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Congestion Control Strategies in Multi-Access Networks by Gelabert, X., Perez-Romero, J., Sallent, O., Agusti, R.

“…This paper addresses the problematic of congestion control in the radio access interface when considering the allocation of voice and data services over…”
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Discrepancies in primary care text by Rodríguez Moreno, C, Vicens Caldentey, C, Fiol Gelabert, X

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On the Impact of Multi-mode Terminals in Heterogeneous Wireless Access Networks by Gelabert, X., Perez-Romero, J., Sallent, O., Agusti, R.

“…Beyond 3G (B3G) networks will encompass, among other features, a wide range of radio access technologies (RATs) providing users with a flexible and efficient…”
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