Distributed scheduling for QoS control in uplink CDMA

Ryo Kitamura, Ryoichi Shinkuma, Tatsuro Takahashi

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

The enhancement of transmission speed of third generation cellular systems is yielded by packet scheduling techniques, which enlarge system capacity and improve bandwidth utilization by choosing the most suitable packet to be sent according to the instantaneous channel condition of mobile stations. However, since different types of traffic require different channel quality, considering the difference of quality-of-service (QoS) is important for designing a scheduling algorithm. Furthermore, the necessity of scheduling schemes to be able to handle for uplinks, in the future, will be much greater. In this paper, we propose heuristic QoS control for CDMA (HCQ), which is a distributed scheduling method for uplinks using channel information. In HCQ, MSs themselves decide when they should send their packets, and each MS independently adjusts the threshold to decide the packet-sending timing. Moreover, the threshold is modified based on the traffic type of sent packets. HCQ needs no complicated calculation and no extra overhead, and provides high effective throughput and delay performance. We evaluate the proposed scheme through computer simulations, and validate it from the results.

本文言語English
ホスト出版物のタイトル2005 Asia-Pacific Conference on Communications
ページ97-101
ページ数5
DOI
出版ステータスPublished - 2005
外部発表はい
イベント2005 Asia-Pacific Conference on Communications - Perth, Western Australia, Australia
継続期間: 2005 10月 32005 10月 5

出版物シリーズ

名前2005 Asia-Pacific Conference on Communications
2005

Conference

Conference2005 Asia-Pacific Conference on Communications
国/地域Australia
CityPerth, Western Australia
Period05/10/305/10/5

ASJC Scopus subject areas

  • 工学(全般)

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