Novel link adaptation for TETRA cellular systems

Tarchi, Daniele and Fantacci, Romano and Tanriover, Cagri; and Honary, Bahram (2009) Novel link adaptation for TETRA cellular systems. International Journal of Communication Systems, 22 (4). pp. 483-501. ISSN 1099-1131

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Abstract

One of the main challenges for future wireless systems is to enhance the effective data throughput by exploiting the allocated bandwidth as much as possible. Among several approaches at different layers, one of the most important is constituted by the so-called link adaptation (LA) techniques. They are characterized by the adaptation of a set of transmission parameters to the channel state in order to improve performance. In this context, this paper is focused on the analysis of a particular class of LA techniques called adaptive modulation and coding, where the modulation and coding rate of transmission can vary according to the channel behavior. In particular, a novel LA algorithm, namely the timed window (TW) method, suitable for time-division Duplex systems is proposed here. The performance of the TW algorithm is evaluated by taking actual user mobility conditions, communication channel behavior, as well as the physical layer effects into account. Finally, it is important to stress that, even if the wireless bearer considered in this study is TETRA (TErrestrial Trunked RAdio), the approach is quite general and it can be of interest for other wireless networks and can be optimized for different channel models (e.g. TU50, HT200, etc.).

Item Type:
Journal Article
Journal or Publication Title:
International Journal of Communication Systems
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2208
Subjects:
ID Code:
60604
Deposited By:
Deposited On:
11 Dec 2012 13:13
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 08:14