A utility-based scheduling approach for multiple services in Coordinated Multi-Point networks

Author

Huang, Binru ; Li, Jingya ; Svensson, Tommy

Author_Institution

Signals & Syst., Chalmers Univ. of Technol., Gothenburg, Sweden

fYear

2011

fDate

3-7 Oct. 2011

Firstpage

1

Lastpage

5

Abstract

Coordinated Multi-Point (CoMP) joint transmission is considered as a key technique to mitigate inter-cell interference (ICI) and improve the cell-edge performance in 3GPP LTE-Advanced. In this paper, a utility-based coordinated transmit scheduling method is proposed to support joint transmission in CoMP systems. The objective is to improve the cell-edge performance in downlink packet-based CoMP networks with mixed real-time voice over IP (VoIP) and best-effort (BE) traffic patterns. Via simulation results we show that compared to the traditional scheduling schemes with neither CoMP joint transmission nor diverse quality of service (QoS) provisioning, the proposed algorithm in this paper improves the cell-edge efficiency of BE users by greater than 45%, while better satisfying the QoS requirements for VoIP users with significant decrease in call outage by greater than 98%.

Keywords

3G mobile communication; Internet telephony; Long Term Evolution; interference suppression; quality of service; scheduling; telecommunication traffic; 3GPP LTE-Advanced; best-effort traffic patterns; call outage; cell-edge efficiency; cell-edge performance; coordinated multipoint networks; inter-cell interference mitigation; quality of service; utility-based coordinated transmit scheduling; voice over IP; Clustering algorithms; Delay; Joints; Power control; Resource management; Scheduling; Throughput; Coordinated multi-point joint transmission; QoS; multiple traffic patterns; scheduling and resource allocation;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Personal Multimedia Communications (WPMC), 2011 14th International Symposium on

Conference_Location

Brest

ISSN

1347-6890

Print_ISBN

978-1-4577-1786-4

Electronic_ISBN

1347-6890

Type

conf

Filename

6081555