Title :
Downlink Performance for Mixed Web/VoIP Traffic in 1xEVDO Revision A Networks
Author :
Sun, Hongxia ; Williamson, Carey
Author_Institution :
Dept. of Comput. Sci., Univ. of Calgary, Calgary, AB
Abstract :
Current 3G cellular networks, such as those based on 1xEVDO Revision A, have several mechanisms to provide quality of service (QoS) to network applications. In this paper, we investigate the performance for mixed Web/VoIP traffic on the downlink in 1xEVDO revision a networks. The impacts from the mixed traffic are studied by using link-level simulations. Our simulator is built based on a realistic system model that includes physical channel parameters, transmission formats, and channel scheduling algorithms, as well as hierarchical traffic models. User-perceived throughput and packet delay are explored. We present our observations and determine the Erlang capacity of the network. We carry out performance analysis using an equivalent queue approach, and discuss appropriate scheduling algorithms and call admission control mechanisms based on the simulation results.
Keywords :
3G mobile communication; Internet telephony; cellular radio; quality of service; queueing theory; scheduling; telecommunication congestion control; telecommunication traffic; 1xEVDO revision; 3G cellular network; Erlang network capacity; QoS; call admission control mechanism; equivalent queue approach; mixed Web/VoIP traffic downlink performance; quality of service; scheduling algorithm; Communication system traffic control; Delay; Downlink; Land mobile radio cellular systems; Performance analysis; Quality of service; Scheduling algorithm; Telecommunication traffic; Throughput; Traffic control;
Conference_Titel :
Communications, 2008. ICC '08. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2075-9
Electronic_ISBN :
978-1-4244-2075-9
DOI :
10.1109/ICC.2008.32
