Dynamic channel assignment algorithms for supporting QoS based services in wireless cellular environments

2015 23rd Telecommunications Forum Telfor (TELFOR) Pub Date : 2015-11-20 DOI:10.1109/TELFOR.2015.7377567

P. Papazoglou, Dimitrios Alexios Karras, R. C. Papademetriou

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引用次数: 1

Abstract

The number of users employing multimedia services in cellular networks has been increased dramatically in the last decade. Multimedia services are more demanding compared to traditional voice services in terms of bandwidth availability and integrity. The capacity and the bandwidth reservation on demand according to QoS requirements are key concepts in mobile cellular communications. The available frequency spectrum is limited and the demand for enhanced mobile user facilities is increasing day by day, hence the channels must be reused as much as possible to increase the system capacity. Existing and proposed channel assignment strategies have to be transformed to support efficiently the new demanding multimedia services. Through this paper we present a review of the most known channel assignment strategies, as well as their QoS aspects and we propose new DCA variations and a channel architecture adapted to QoS requirements for supporting multimedia services. We also present some strategies, models and conclusions for algorithm evaluation based on experimental results.

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支持无线蜂窝环境中基于QoS的服务的动态信道分配算法

在过去十年中，在蜂窝网络中使用多媒体服务的用户数量急剧增加。与传统语音业务相比，多媒体业务在带宽可用性和完整性方面的要求更高。基于QoS要求的容量和带宽按需保留是移动蜂窝通信中的关键概念。可用频谱有限，而对增强型流动用户设施的需求日益增加，因此必须尽可能重复使用信道以增加系统容量。现有的和提出的信道分配策略必须进行转换，以有效地支持新的多媒体业务需求。通过本文，我们回顾了最著名的信道分配策略，以及它们的QoS方面，我们提出了新的DCA变体和适应QoS要求的信道架构，以支持多媒体服务。基于实验结果，提出了算法评价的策略、模型和结论。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2015 23rd Telecommunications Forum Telfor (TELFOR)

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