Throughput Enhancement Using Adaptive Delay Barrier Function over HSDPA System in Mixed Traffic Scenarios

Yong-Seok KIM  

IEICE TRANSACTIONS on Communications   Vol.E91-B   No.2   pp.488-493
Publication Date: 2008/02/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.2.488
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
adaptive delay barrier function,  a mixed traffic,  VoIP,  HSDPA,  

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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.