Presentation 2005/2/23
Multi-cell Scheduling for QoS Control in CDMA/TDD Systems
Tomoo KANGAWA, Hiroshi NAKAMURA, Ryoichi SHINKUMA, Tatsuro TAKAHASHI,
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Abstract(in English) Code division multiple access-frequency division duplex (CDMA/TDD) can make efficient utilization of bandwidths and satisfy various quality of service (QoS) requirements by adaptively allocating time slots according to the balance of uplink and downlink traffic. However, to enhance the QoS, it is important to consider interference between cells. In this paper, we propose a multi-cell scheduling method for QoS control. This method classifies multimedia traffic into three classes-Voice, Video, and Data. Each class is assigned different time slots, and transmitted sequentially. This method defines three types of assignment order : Voice-Video-Data, Video-Data-Voice, and Data-Voice-Video. When a type is assigned to a cell, the different types are assigned to neighboring cells. The proposed method reduces intercell interference of Data packets, which generally requires higher transmmison power to satisfy severe bit error requirement. It also improves QoS of Data class and other classes as well. In this paper, we verify the effectiveness of the proposed scheme through computer simulations.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) CDMA/TDD / QoS control / time slot allocation / transmission power allocation / multi-cell scheduling
Paper # WBS2004-70,A・P2004-251,RCS2004-338,MoMuC2004-121,MW2004-248
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Committee MoMuC
Conference Date 2005/2/23(1days)
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Registration To Mobile Multimedia Communications(MoMuC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Multi-cell Scheduling for QoS Control in CDMA/TDD Systems
Sub Title (in English)
Keyword(1) CDMA/TDD
Keyword(2) QoS control
Keyword(3) time slot allocation
Keyword(4) transmission power allocation
Keyword(5) multi-cell scheduling
1st Author's Name Tomoo KANGAWA
1st Author's Affiliation Electrical and Electronic Engineering, Faculty of Engineering, Kyoto University()
2nd Author's Name Hiroshi NAKAMURA
2nd Author's Affiliation Graduate School of Informatics, Kyoto University
3rd Author's Name Ryoichi SHINKUMA
3rd Author's Affiliation Graduate School of Informatics, Kyoto University
4th Author's Name Tatsuro TAKAHASHI
4th Author's Affiliation Graduate School of Informatics, Kyoto University
Date 2005/2/23
Paper # WBS2004-70,A・P2004-251,RCS2004-338,MoMuC2004-121,MW2004-248
Volume (vol) vol.104
Number (no) 681
Page pp.pp.-
#Pages 6
Date of Issue