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Co-channel interference effects as applied to broadband fixed wireless access channel capacity statistical distribution

Influence du brouillage dans le canal sur la répartition statistique de la capacité d’un canal radioélectrique d’accès fixe

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Abstract

Channel Capacity is of primary importance in broadband fixed wireless access (bfwa) networks due to the ever increasing demand for multimedia services and the possibility of providing wireless Internet. One of the major factors limiting capacity in such systems is interference originating from adjacent terrestrial applications belonging to the same bfwa network or to another. Moreover, the performance of broadband fixed wireless access links operating above 10 GHz is predominantly controlled by rain attenuation. The purpose of this paper is the presentation of a physical model for the evaluation of the fraction of the time where the capacity distribution of a broadband fixed wireless access channel under rain fade conditions suffering from co-channel interference, non-exceeds a specified level in (bps/Hz). The proposed analysis examines the capacity distribution properties focusing on the spatial inhomogeneity of rainfall medium. The impact of various operational and geometrical parameters on the performance of interfered broadband wireless access channel capacity distribution is investigated through extended simulations.

Résumé

La capacité de canal est d’une importance primordiale dans les réseaux d’accès radio-électrique à large bande par suite de la demande croissante en services multimédias et de la possibilité de fournir un accès sans fil à l’internet. L’un des facteurs principaux limitant la capacité dans ces réseaux est le brouillage provenant d’applications terrestres voisines appartenant au même réseau d’accès ou à un autre. De plus, la qualité des liaisons fonctionnant au-dessus de 10 GHz est déterminée principalement par l’affaiblissement dû à la pluie. Cet article présente un modèle physique pour évaluer la fraction du temps pendant laquelle la capacité d’une liaison fixe à large bande, en présence d’affaiblissement dû à la pluie et de brouillage dans le canal, ne dépasse pas un niveau spécifié en bit/s. Hz. Il analyse la répartition de la capacité en insistant sur l’hétérogénéité spatiale de la pluie. L’effet de divers paramètres opérationnels et géométriques sur la répartition de la capacité est étudiée par simulation.

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Authors and Affiliations

  1. Wireless & Satellite Communications Group, School of Electrical and Computer Engineering, National Technical University of Athens, 9 Iroon Polytechniou Street, 15780, Zografou-Athens, Greece

    Athanasios D. Panagopoulos

  2. Department of Electrical and Electronics Engineering, School of Pedagogical and Technological Education (aspete), Athens, N. Heraklion Attikis, Greece, 14121

    Athanasios D. Panagopoulos & George E. Chatzarakis

Authors
  1. Athanasios D. Panagopoulos
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  2. George E. Chatzarakis
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Correspondence to Athanasios D. Panagopoulos.

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Panagopoulos, A.D., Chatzarakis, G.E. Co-channel interference effects as applied to broadband fixed wireless access channel capacity statistical distribution. Ann. Telecommun. 62, 955–966 (2007). https://doi.org/10.1007/BF03253300

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  • DOI: https://doi.org/10.1007/BF03253300

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