Novel scheduling algorithms aiming for QoS guarantees for VoIP over HSDPA

The growth in the number of voice over IP (VoIP) users on the Internet makes it the service with the highest interest to be provided by cellular operators. On the other hand, it demands very strict QoS control, which becomes even more complicated in wireless networks, because packets can be lost due to radio link transmission errors, as well as network congestion. Within this paradigm, scheduling strategies appear as the most suitable solution to cope with QoS guarantees under high loads, where the resources should be carefully distributed among the users in order to fulfill their QoS requirements. This work comprises the proposal and evaluation of some scheduling algorithms aiming to improve system capacity and QoS guarantees for speech users in HSDPA. The results show that the scheduling algorithms that mix fairness with channel information to get improvements of the multi-user diversity provide the best performance.

[1]  Frida Eng,et al.  Streaming applications over HSDPA in mixed service scenarios , 2004, IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004.

[2]  Jon Postel,et al.  Internet Protocol , 1981, RFC.

[3]  Jürgen Falb,et al.  The Internet Protocol , 2005, The Industrial Information Technology Handbook.

[4]  Yaxin Cao,et al.  Scheduling Algorithms in Broad-Band Wireless Networks , 2001 .

[5]  P. Hosein.  Scheduling of VoIP traffic over a time-shared wireless packet data channel , 2005, 2005 IEEE International Conference on Personal Wireless Communications, 2005. ICPWC 2005..

[6]  Francisco Rodrigo Porto Cavalcanti,et al.  Packet Scheduling for VOIP Over HSDPA in Mixed Traffic Scenarios , 2006, 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications.

[7]  Paolo Dini,et al.  Design and performance evaluation of packet scheduler algorithms for video traffic in the high speed downlink packet access , 2004, 2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754).

[8]  Muhammad Kazini.  Scheduling Algorithms for HS-DSCH in a WCDMA Mixed Traffic Scenario , 2003 .

[9]  Bang Wang,et al.  Performance of VoIP on HSDPA , 2005, 2005 IEEE 61st Vehicular Technology Conference.

[10]  Pablo Jose Ameigeiras Gutiérrez,et al.  Packet Scheduling and Quality of Service in HSDPA , 2003 .

[11]  Magnus Almgren,et al.  Radio Resource Management for Wireless Networks , 2001 .

[12]  Carsten Bormann,et al.  Robust Header Compression (ROHC) over PPP , 2002, RFC.

[13]  F.R.P. Cavalcanti,et al.  Packet scheduling for Voice over IP over HSDPA in mixed traffic scenarios with different end-to-end delay budgets , 2006, 2006 International Telecommunications Symposium.

[14]  Jonas Eriksson.  Providing Quality of Service for Streaming Applications in Evolved 3G Networks , 2004 .

[15]  Victor O. K. Li,et al.  Scheduling algorithms in broadband wireless networks , 2001, Proc. IEEE.

[16]  Jon Postel,et al.  User Datagram Protocol , 1980, RFC.

[17]  Henning Schulzrinne,et al.  RTP: A Transport Protocol for Real-Time Applications , 1996, RFC.