Copyright © 2008 The Institute of Electronics, Information and Communication Engineers
Regular Section -- Papers -- Wireless Communication Technologies |
Throughput Enhancement Using Adaptive Delay Barrier Function over HSDPA System in Mixed Traffic Scenarios
1 The author is with Telecommunication R&D Center, Telecommunication Network Business, Samsung Electronics, Korea. E-mail: dragon{at}yonsei.ac.kr
| Abstract |
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In this paper, we consider a method to enhance the throughput of HSDPA systems in the mixed traffic scenario. A channel-dependent adaptive delay barrier (DB) function is proposed to maximize throughput of best-effort (BE) traffic while satisfying the delay latency of voice over internet protocol (VoIP) service. Simulations show that the proposed channel-adaptive DB function raises the throughput of BE traffic service by 30% compared to the conventional scheme, without degrading the capacity of VoIP service over HSDPA system.
Key Words: adaptive delay barrier function, a mixed traffic, VoIP, HSDPA
Manuscript received May 29, 2007. Manuscript revised August 9, 2007.