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A Multirate Loss Model of Quasi-Random Input for the X2 Link of LTE Networks

Authors:
Panagiotis Panagoulias
Ioannis Moscholios
Michael Koukias
Michael Logothetis

Keywords: LTE; X2; Quasi-random process; congestion; recursive formula.

Abstract:
In this paper, first we review a multirate loss model, whereby we can assess the call-level Quality of Service (QoS) of the Long Term Evolution (LTE) X2 link supporting calls of different service-classes with fixed bandwidth requirements. The X2 interface connects directly two neighboring evolved NodeBs and is mainly responsible for the transfer of user-plane and control-plane data during a handover. In the model, the X2 interface is modelled as a link of fixed capacity. Handover calls are accepted in the X2 link whenever available bandwidth exists. Secondly, we propose a multirate loss model where calls arrive in the X2 link according to a quasi-random process and compete for the available bandwidth under the Complete Sharing (CS) policy. The CS policy allows calls to enter the system when available bandwidth exists. We propose recursive formulas for the calculation of time and call congestion probabilities as well as link utilization for the CS policy.

Pages: 17 to 22

Copyright: Copyright (c) IARIA, 2018

Publication date: April 22, 2018

Published in: conference

ISSN: 2308-4413

ISBN: 978-1-61208-625-5

Location: Athens, Greece

Dates: from April 22, 2018 to April 26, 2018