Title:
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Impact of downlink signaling capacity constraints on the provision of QoS in LTE
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Author:
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González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. WiComTec - Grup de recerca en Tecnologies i Comunicacions Sense Fils |
Abstract:
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Choosing appropriate scheduling policies is of
utmost importance to deliver acceptable levels of Quality of
Service (QoS) to users of LTE networks. This decision is not only
conditioned by the type of services expected to be offered but also
by targeted QoS levels properly said. In this sense, preliminary
performance evaluations depend to a large degree on the accuracy
with which relevant practical system limitations are modelled. In
LTE, the capacity of control channels is clearly one of the most
important issues. While the impact of control channel limitations
on LTE VoIP capacity has been widely studied yet, tradeoffs
associated to control channel usage and the provision of QoS
for Non-Real Time (NRT) services has been basically omitted
in current literature. In this paper, several experiments have
been conducted to investigate such interplay from different points
of view. Results show that the relationship between scheduling
policies, offered levels of QoS (expressed in terms of guaranteed
bit rates) and control channels capacity is not trivial and requires
careful planning. |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils -Long-Term Evolution (Telecommunications) -Mobile communication systems -Comunicacions mòbils, Sistemes de -Telecomunicació |
Rights:
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Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
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Article - Published version Conference Object |
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