Author:
Yong-Seok Kim
Affiliation:
LTE Advanced Tech. Lab., Telecommunication R&D center, Telecommunication Network Business, Samsung Electronics, Korea, Republic of
Keyword(s):
Adaptive delay barrier function, a mixed traffic, VoIP, HSDPA.
Related
Ontology
Subjects/Areas/Topics:
Mobile Software and Services
;
Multi-Carrier and CDMA, OFDM, Spread-Spectrum and UWB
;
Radio Resource Management
;
Telecommunications
;
Wireless and Mobile Technologies
;
Wireless Information Networks and Systems
Abstract:
In this paper, we consider a method to enhance the throughput of HSDPA system in the mixed traffic scenario. Adaptive delay barrier (DB) function and adaptation method are proposed to maximize throughput of best-effort (BE) traffic with satisfying the delay latency of voice over internet protocol (VoIP) service. Moreover, in order to guarantee quality-of-service (QoS) for the mixed traffics, a design of modified scheduling scheme is provided in this paper. Simulation results show that the throughput of BE traffic service with a channel-adaptive DB function increases up to 30%, compared with the conventional scheme, without degrading the capacity of VoIP service over HSDPA system.